Many Mate-In-Two Chess Problems (White starting) and their solution by Shalsoh B. Ekhad using the Maple Program CheckMate available from http://www.math.rutgers.edu/~zeilberg/tokhniot/CheckMate [- - - - wR - - - ] [ ] [- bP - - - bP bK bP] [ ] [bP - bN - - bQ bP - ] [ ] [- - wB - - - - - ] [ ] [- wP - - - - - wP] [ ] [- - - - - - wP - ] [ ] [wB - - - - wP - - ] [ ] [- - - - - - wK - ] -------------------------------------------------------- Solution: 1.Bf8 ..1.Kg8 2.Bh6 ..1.Kh8 2.Bh6 ------------------------- 1.633 [- - - - - - bR - ] [ ] [- bP - bN wR - - - ] [ ] [- - bQ wP - bN bP bK] [ ] [- - - - - - - bP] [ ] [- - - - - wP - wN] [ ] [- - - wQ - - wP wP] [ ] [- wR - - - - - wK] [ ] [- - - - - - - - ] -------------------------------------------------------- Solution: 1.Qg6 ..1.Rg6 2.Nf5 ------------------------- 3.269 [- - - - wQ bR - bK] [ ] [- bP - - - wP bP - ] [ ] [bP - - - - - - bP] [ ] [- - bQ bP - wB - wR] [ ] [- - - - - wP wK - ] [ ] [- - - - - - - - ] [ ] [wP - - - - - - - ] [ ] [- - - - - - - - ] -------------------------------------------------------- Solution: 1.Rh6 ..1.h6 2.Qe5 ------------------------- 1.413 [bR bQ - - bR bK - - ] [ ] [- - - wR bB - bP - ] [ ] [bP - - - wQ bP bN - ] [ ] [- - - - - - - - ] [ ] [- - bP wN - - - - ] [ ] [- - - - wB - - - ] [ ] [wP wP - - - - - wP] [ ] [- - - - - wR wK - ] -------------------------------------------------------- Solution: 1.Rf6 ..1.f6 2.Bh6 ------------------------- ..1.Bf6 2.Qf7 ------------------------- 7.043 [- - - - - bN bR bK] [ ] [- - - - - bP - bP] [ ] [- - - - bP wP - wQ] [ ] [bP - - - wP - - - ] [ ] [- - bQ wN - - wP - ] [ ] [bR - - - - - - - ] [ ] [- bP wP - - - - wR] [ ] [- wK - - - - - wR] -------------------------------------------------------- Solution: 1.Qh7 ..1.Nh7 2.Rh7 ------------------------- 0.765 [- - - bR - - - - ] [ ] [bP - - - - - - bP] [ ] [- - - bR - bN bP - ] [ ] [- - bP - bK - - - ] [ ] [- - wB - bP wR wP - ] [ ] [wP - - - wP - - - ] [ ] [- wP - - - - - wP] [ ] [- - wK - - wR - - ] -------------------------------------------------------- Solution: 1.Rf5 ..1.f5 2.Rf5 ------------------------- 1.534 [bR - - - bN bR - bK] [ ] [- bP - bB wN bP bP bP] [ ] [bP - - bP - - - - ] [ ] [bQ - - - bP wP wP wQ] [ ] [- - - - bN - - - ] [ ] [- - - - wB wR - - ] [ ] [wP wP wP - - - wB wP] [ ] [wR - - - - - wK - ] -------------------------------------------------------- Solution: 1.Qh7 ..1.Kh7 2.Rh3 ------------------------- 1.836 [- - - - - - - - ] [ ] [- - - - bP - wR - ] [ ] [- - - bP - bR - bK] [ ] [- - - - - - - - ] [ ] [bP - - - - bQ - - ] [ ] [wP - wP - - - - - ] [ ] [- wP - - - - wQ bR] [ ] [wK - - - - - wR - ] -------------------------------------------------------- Solution: 1.Rh7 ..1.Kh7 2.Qg7 ------------------------- 1.665 [- - - - - bR - bK] [ ] [- - - - - - bP bP] [ ] [- bQ - - - - - wN] [ ] [bP - - - - - - - ] [ ] [- - wQ - - - - - ] [ ] [- - - wR - - wP wK] [ ] [wP - - wR - bB wP - ] [ ] [- bR - - - - - - ] -------------------------------------------------------- Solution: 1.Qg8 ..1.Rg8 2.Nf7 ------------------------- 1.604 [- - - - - - - - ] [ ] [- - - - - - - - ] [ ] [bP - - wR - - - - ] [ ] [- - - - bR - bP bK] [ ] [- bP - - - - - - ] [ ] [- - bB - - wP wP - ] [ ] [wP - wB - - - wK - ] [ ] [- - - - - - - - ] -------------------------------------------------------- Solution: 1.g4 ..1.Kh4 2.Rh6 ------------------------- 0.748 [- - - - - - - -] [ ] [- - - - - - - -] [ ] [- - - wK - - - -] [ ] [- - - - - - - -] [ ] [- - - bK - - - -] [ ] [- - - - - wQ - -] [ ] [- - wR - - - - -] [ ] [- - - - - - - -] %1 := [-, -, -, -, -, -, -, -] -------------------------------------------------------- Solution: 1.Qh3 ..1.Ke4 2.Rc4 ------------------------- 11.944 [- - bB - - - - - ] [ ] [wK bP - - - - - - ] [ ] [- - bP wN - - - - ] [ ] [bP - bK - wP - - - ] [ ] [- - wP wR - - - - ] [ ] [wP - - wQ wP - bP - ] [ ] [- bR - - - wP bQ bN] [ ] [- - wN - - - - - ] -------------------------------------------------------- Solution: 1.Qb3 ..1.Rb3 2.Nb3 ------------------------- ..1.Qd5 2.Nd3 ..1.Qf2 2.Nd3 ..1.Qf3 2.Nd3 ..1.Qg1 2.Nd3 ..1.Qh1 2.Nd3 ..1.Qh3 2.Nd3 ------------------------- ..1.Rb1 2.Nd3 ------------------------- ..1.Bd7 2.Nd3 ..1.Be6 2.Nd3 ..1.Bg4 2.Nd3 ..1.Bh3 2.Nd3 ------------------------- ..1.Nf1 2.Nd3 ..1.Nf3 2.Nd3 ..1.Ng4 2.Nd3 ------------------------- ..1.a4 2.Nd3 ------------------------- ..1.b5 2.Nd3 ..1.b6 2.Nd3 ------------------------- ..1.f2 2.Nd3 ------------------------- ..1.Bf5 2.Nb7 ------------------------- ..1.Qe4 2.Ne4 ..1.Qf1 2.Ne4 ------------------------- ..1.Ra2 2.Qb6 ..1.Rc2 2.Qb6 ..1.Rd2 2.Qb6 ..1.Re2 2.Qb6 ..1.Rf2 2.Qb6 ------------------------- 34.551 [- - - - - - - - ] [ ] [- - - - - - - - ] [ ] [- - - - - - - - ] [ ] [- - - - - - - - ] [ ] [- - - - - - - - ] [ ] [- - wN - bP - - wN] [ ] [- - - - - - - wP] [ ] [- - - wR bN bK - wK] %1 := [-, -, -, -, -, -, -, -] -------------------------------------------------------- Solution: Not Mate-In-Two 3.848 [- - - - - - - - ] [ ] [- - - - - - - - ] [ ] [- - - - - - - - ] [ ] [bP bP - - - - - - ] [ ] [bK wB - - - - - wQ] [ ] [- - - - - - - - ] [ ] [wK - - bB - - - - ] [ ] [- - - - - - - - ] %1 := [-, -, -, -, -, -, -, -] -------------------------------------------------------- Solution: 1.Qd8 ..1.Bc1 2.Qa5 ..1.Bc3 2.Qa5 ..1.Be1 2.Qa5 ..1.Be3 2.Qa5 ..1.Bf4 2.Qa5 ..1.Bg5 2.Qa5 ..1.Bh6 2.Qa5 ------------------------- ..1.b4 2.Qa8 ------------------------- ..1.Bb4 2.Qd1 ------------------------- ..1.Kb4 2.Qd4 ------------------------- 6.840 [wR - - - - - - - ] [ ] [- - - - - - - wB] [ ] [- - - - - - - - ] [ ] [- - - - - - - - ] [ ] [- - - - - - - - ] [ ] [- wN - - - - - - ] [ ] [- bP - bP - - - - ] [ ] [- - - bK - wK - - ] -------------------------------------------------------- Solution: 1.Ra2 ..1.b1 2.Rd2 ------------------------- 3.154 [- - - bB - - wQ - ] [ ] [- - - - bR - wN - ] [ ] [- bP - - - - - - ] [ ] [- bP - - - - - - ] [ ] [- - - - bK wB - wR] [ ] [- - wP bP - - - wK] [ ] [- - - - bR wR - - ] [ ] [- - - wB - bN - wN] -------------------------------------------------------- Solution: 1.Qa2 ..1.Rf2 2.Nf2 ------------------------- ..1.Nd2 2.Ng3 ..1.Ne3 2.Ng3 ..1.Ng3 2.Ng3 ..1.Nh2 2.Ng3 ------------------------- ..1.d2 2.Bc2 ------------------------- ..1.Ra2 2.Bf3 ..1.Rb2 2.Bf3 ..1.Rc2 2.Bf3 ..1.Rd2 2.Bf3 ..1.Re1 2.Bf3 ------------------------- ..1.Re3 2.Bg3 ------------------------- ..1.Re5 2.Bg5 ------------------------- ..1.Re8 2.Qa8 ------------------------- ..1.Bc7 2.Qa8 ------------------------- ..1.b4 2.Qc4 ------------------------- ..1.Ra7 2.Qe6 ..1.Rb7 2.Qe6 ..1.Rc7 2.Qe6 ..1.Rd7 2.Qe6 ..1.Re6 2.Qe6 ..1.Rf7 2.Qe6 ..1.Rg7 2.Qe6 ------------------------- 88.741 [wR - - - - - - - ] [ ] [- - wQ - - - bR bR] [ ] [- bP - - - - wP bK] [ ] [- wK - - - - wR - ] [ ] [- - - - - - - - ] [ ] [- - - - - - - bP] [ ] [- - - - - - - - ] [ ] [- - wB - - - - - ] -------------------------------------------------------- Solution: 1.Rg8 ..1.Rc7 2.Rc5 ------------------------- ..1.Rd7 2.Rd5 ------------------------- ..1.Re7 2.Re5 ------------------------- ..1.Rf7 2.Rf5 ------------------------- ..1.Rg6 2.Rg6 ------------------------- ..1.Rh8 2.Qg7 ------------------------- ..1.h2 2.Qh2 ------------------------- ..1.Rg8 2.Qh7 ------------------------- 5.284 [- - wB - bN - - wB] [ ] [bP wQ - - bP - - - ] [ ] [bR - bR - - - - - ] [ ] [bB - - - - - - - ] [ ] [- - - - bK wN wN wK] [ ] [- - - - - - wP - ] [ ] [- - - - - - wP - ] [ ] [- wR - - - bN - - ] -------------------------------------------------------- Solution: 1.Rc1 ..1.Ne3 2.Nf2 ------------------------- ..1.Rb6 2.Rc4 ------------------------- ..1.Bb4 2.Rc4 ..1.Bc7 2.Rc4 ..1.Bd2 2.Rc4 ..1.Bd8 2.Rc4 ..1.Be1 2.Rc4 ------------------------- ..1.Nc7 2.Rc4 ..1.Nf6 2.Rc4 ..1.Ng7 2.Rc4 ------------------------- ..1.Ng3 2.Rc4 ..1.Nh2 2.Rc4 ------------------------- ..1.e5 2.Rc4 ------------------------- ..1.Nd2 2.Re1 ------------------------- ..1.Bc3 2.Qb1 ------------------------- ..1.Bb6 2.Qc6 ------------------------- ..1.Nd6 2.Qe7 ------------------------- ..1.e6 2.Qh7 ------------------------- 84.024 [- - - - - wB - - ] [ ] [- - bP bP - - - wK] [ ] [- - bP - - bP - - ] [ ] [wR bN wN - - wB - - ] [ ] [- - bK bP - - - - ] [ ] [- - wP - - - - wR] [ ] [bB - - - wN - - - ] [ ] [- - - wQ - - - - ] -------------------------------------------------------- Solution: 1.Rh5 ..1.Bb3 2.Bd3 ------------------------- ..1.d3 2.Bd3 ------------------------- ..1.d5 2.Bd3 ..1.d6 2.Bd3 ------------------------- ..1.Kd5 2.Be6 ------------------------- ..1.c3 2.Ra4 ------------------------- ..1.Bb1 2.Qb3 ------------------------- ..1.Na3 2.Qd4 ..1.Na7 2.Qd4 ..1.Nc3 2.Qd4 ..1.Nd6 2.Qd4 ------------------------- 60.109 [- - - - - wR - - ] [ ] [- - wB wP bR bB bP - ] [ ] [- - - wN - - - - ] [ ] [- - - - bR - - - ] [ ] [wR - - bN - bK wB wP] [ ] [- - - wP - - wN wK] [ ] [- - - - - wP - - ] [ ] [bB - - - - bN - - ] -------------------------------------------------------- Solution: 1.Nf5 ..1.Ne3 2.e3 ------------------------- ..1.Ng3 2.g3 ------------------------- ..1.Rd7 2.Ne2 ..1.Re6 2.Ne2 ..1.Re8 2.Ne2 ------------------------- ..1.Bb2 2.Ne2 ..1.Bc3 2.Ne2 ------------------------- ..1.Ba2 2.Ne2 ..1.Bb3 2.Ne2 ..1.Bd5 2.Ne2 ..1.Be6 2.Ne2 ..1.Be8 2.Ne2 ..1.Bg6 2.Ne2 ..1.Bg8 2.Ne2 ..1.Bh5 2.Ne2 ------------------------- ..1.Nd2 2.Ne2 ..1.Nh2 2.Ne2 ------------------------- ..1.g5 2.Ne2 ..1.g6 2.Ne2 ------------------------- ..1.Bc4 2.Nh5 ------------------------- 24.068 [- - wK bN - - - - ] [ ] [- - - - - - - - ] [ ] [- wQ - - - - - wN] [ ] [- - wN - bK wB - - ] [ ] [wR - - - - - - - ] [ ] [- - bR - bN - - - ] [ ] [- - - - - - - - ] [ ] [wB - - - - - - - ] -------------------------------------------------------- Solution: 1.Bc3 ..1.Kd5 2.Be4 ------------------------- 21.927 [- - - - - - wQ - ] [ ] [- wK bP - - - - wB] [ ] [- bP - - wR - - bB] [ ] [- bP - bK - - - - ] [ ] [- bN - - - wP - bN] [ ] [wB - - - - - - - ] [ ] [- - - - wN bP bQ - ] [ ] [- - wR - - - - - ] -------------------------------------------------------- Solution: 1.Bc2 ..1.Qg6 2.Bb3 ..1.Qg8 2.Bb3 ------------------------- ..1.Bf4 2.Bb3 ..1.Bf8 2.Bb3 ------------------------- ..1.Nf5 2.Bb3 ------------------------- ..1.c6 2.Bb3 ------------------------- ..1.f1 2.Bb3 ------------------------- ..1.Kc5 2.Be4 ------------------------- ..1.Qe4 2.Be4 ..1.Qf1 2.Be4 ..1.Qg1 2.Be4 ..1.Qg3 2.Be4 ..1.Qg4 2.Be4 ..1.Qg5 2.Be4 ..1.Qg7 2.Be4 ..1.Qh2 2.Be4 ..1.Qh3 2.Be4 ------------------------- ..1.Nf3 2.Be4 ------------------------- ..1.Kc4 2.Rc6 ------------------------- ..1.Qf3 2.Rc6 ..1.Qh1 2.Rc6 ------------------------- ..1.Bg5 2.Rc6 ..1.Bg7 2.Rc6 ------------------------- ..1.Ng6 2.Rc6 ------------------------- ..1.Na2 2.Rd6 ..1.Na6 2.Rd6 ..1.Nc6 2.Rd6 ------------------------- ..1.Nc2 2.Re5 ..1.Nd3 2.Re5 ------------------------- ..1.c5 2.Rg6 ------------------------- 60.451 [- - - - wN - wR - ] [ ] [- - - - - - - wK] [ ] [- - bP bP - - - - ] [ ] [- wB - bR - bK - - ] [ ] [wQ - - bB - - bP - ] [ ] [- - wN bP wR - wP - ] [ ] [- - - - - - - - ] [ ] [- - bN - - - - - ] -------------------------------------------------------- Solution: 1.Qc4 ..1.c5 2.Bd7 ------------------------- ..1.b5 2.Qc8 ------------------------- ..1.Na2 2.Qd3 ..1.Nb3 2.Qd3 ..1.Ne2 2.Qd3 ------------------------- ..1.Be3 2.Qe4 ------------------------- ..1.Rb5 2.Qe6 ..1.Rc5 2.Qe6 ------------------------- ..1.d2 2.Qf1 ------------------------- ..1.Ba7 2.Qf4 ..1.Bb6 2.Qf4 ..1.Bc3 2.Qf4 ..1.Bc5 2.Qf4 ..1.Bf6 2.Qf4 ..1.Bg7 2.Qf4 ..1.Bh8 2.Qf4 ------------------------- ..1.Re5 2.Qf7 ------------------------- ..1.Be5 2.Qg4 ------------------------- 43.442 [- - - - - - - -] [ ] [- wP bP bP - wK wN -] [ ] [- bN - - - bN - -] [ ] [wR - - wB - - wR -] [ ] [- - bP bK bP - - -] [ ] [wN bP - - - wP bB -] [ ] [- - - wB wQ - - -] [ ] [- - - bR - - bQ -] -------------------------------------------------------- Solution: 1.Bc6 ..1.Qe1 2.Nb5 ..1.Qf2 2.Nb5 ------------------------- ..1.Ra1 2.Nb5 ..1.Rb1 2.Nb5 ..1.Rc1 2.Nb5 ..1.Re1 2.Nb5 ..1.Rf1 2.Nb5 ------------------------- ..1.Bd6 2.Nb5 ..1.Be1 2.Nb5 ..1.Bf2 2.Nb5 ..1.Bf4 2.Nb5 ..1.Bh2 2.Nb5 ..1.Bh4 2.Nb5 ------------------------- ..1.b2 2.Nb5 ------------------------- ..1.c3 2.Nb5 ------------------------- ..1.d6 2.Nb5 ------------------------- ..1.e3 2.Nb5 ..1.f3 2.Nb5 ------------------------- ..1.c6 2.Ne6 ..1.d5 2.Ne6 ------------------------- ..1.Be5 2.Nf5 ------------------------- ..1.Na4 2.Qc4 ..1.Na8 2.Qc4 ..1.Nc8 2.Qc4 ..1.Nd5 2.Qc4 ------------------------- ..1.Rd2 2.Qd2 ------------------------- ..1.Qe3 2.Qe3 ..1.Qf1 2.Qe3 ..1.Qg2 2.Qe3 ..1.Qh1 2.Qe3 ..1.Qh2 2.Qe3 ------------------------- ..1.Nd5 2.Qe4 ..1.Ne8 2.Qe4 ..1.Ng4 2.Qe4 ..1.Ng8 2.Qe4 ..1.Nh5 2.Qe4 ..1.Nh7 2.Qe4 ------------------------- 158.287 [- wB wB - - - - - ] [ ] [- bP - - - bP - - ] [ ] [- bP - wK - wP - - ] [ ] [- - - wP wR - wP bP] [ ] [- - - bP wP bK wN wP] [ ] [- - - - - - - - ] [ ] [- - - - wP - bB - ] [ ] [- - - - - - wQ bN] -------------------------------------------------------- Solution: 1.Re8 ..1.Ng3 2.Qc1 ------------------------- ..1.d3 2.Qe3 ------------------------- ..1.Kg3 2.Qh2 ------------------------- ..1.Nf2 2.Qh2 ------------------------- ..1.b5 2.Kc5 ------------------------- ..1.Bf1 2.Kd7 ..1.Bf3 2.Kd7 ..1.Bh3 2.Kd7 ------------------------- ..1.g4 2.Kd7 ------------------------- ..1.Be4 2.Ke7 ------------------------- 26.730 [- - wB - - - - - ] [ ] [- bP - - - - - - ] [ ] [- wB bN wK wN - bP - ] [ ] [- wR - - - - wP - ] [ ] [- - - - bK - bR bP] [ ] [wR wN - - wP bP - - ] [ ] [bN - wP bP bB - - - ] [ ] [- - - bR - - - wQ] -------------------------------------------------------- Solution: 1.Qh3 ..1.Rf4 2.Nc5 ..1.Rg1 2.Nc5 ..1.Rg2 2.Nc5 ..1.Rg3 2.Nc5 ------------------------- ..1.Rg1 2.Nd2 ------------------------- ..1.f2 2.Nc5 ------------------------- ..1.Rg5 2.Ng5 ------------------------- ..1.Na5 2.Re5 ..1.Na7 2.Re5 ..1.Nb4 2.Re5 ..1.Nb8 2.Re5 ..1.Nd4 2.Re5 ..1.Nd8 2.Re5 ..1.Ne5 2.Re5 ..1.Ne7 2.Re5 ------------------------- ..1.Ra1 2.Qg4 ..1.Rb1 2.Qg4 ..1.Rc1 2.Qg4 ..1.Re1 2.Qg4 ..1.Rf1 2.Qg4 ..1.Rh1 2.Qg4 ------------------------- ..1.Bb5 2.Qg4 ..1.Bc4 2.Qg4 ..1.Bd3 2.Qg4 ..1.Bf1 2.Qg4 ------------------------- ..1.Nb4 2.Qg4 ..1.Nc1 2.Qg4 ..1.Nc3 2.Qg4 ------------------------- 128.107 [- bB - - wK - - - ] [ ] [- - - - bP - - bP] [ ] [- - wQ - wP - - bR] [ ] [- - bP - bK - - bP] [ ] [- wP - - bP wR - wB] [ ] [- bP - bP - - - - ] [ ] [- bQ bN - wN - - - ] [ ] [- - - - - - - - ] -------------------------------------------------------- Solution: 1.Ng3 ..1.Qa1 2.Re4 ..1.Qa2 2.Re4 ..1.Qa3 2.Re4 ..1.Qb1 2.Re4 ..1.Qc1 2.Re4 ..1.Qc3 2.Re4 ------------------------- ..1.Re6 2.Re4 ..1.Rf6 2.Re4 ..1.Rg6 2.Re4 ------------------------- ..1.Ba7 2.Re4 ..1.Bc7 2.Re4 ..1.Bd6 2.Re4 ------------------------- ..1.Na1 2.Re4 ..1.Na3 2.Re4 ..1.Nb4 2.Re4 ..1.Nd4 2.Re4 ..1.Ne1 2.Re4 ..1.Ne3 2.Re4 ------------------------- ..1.b4 2.Re4 ..1.c4 2.Re4 ------------------------- ..1.d2 2.Re4 ------------------------- ..1.e3 2.Re4 ------------------------- ..1.Qd4 2.Rf5 ------------------------- ..1.Kd4 2.Qc5 ------------------------- ..1.Kf4 2.Qe4 ------------------------- 33.216 [- - - wQ - - wK -] [ ] [wR - - bB - - - -] [ ] [- - bP bB bP - - -] [ ] [- - wN - wN - wR -] [ ] [- - - bK - - - -] [ ] [wB - - bN bR wP - -] [ ] [wB - - wP wP - - -] [ ] [- - - - - - - -] -------------------------------------------------------- Solution: 1.d3 ..1.Bb8 2.Ne6 ..1.Bc7 2.Ne6 ..1.Be7 2.Ne6 ..1.Bf8 2.Ne6 ------------------------- ..1.Rf3 2.Nf3 ------------------------- ..1.Bc5 2.Bb2 ------------------------- ..1.Rd3 2.Ra4 ..1.Re1 2.Ra4 ..1.Re2 2.Ra4 ..1.Re4 2.Ra4 ..1.Re5 2.Ra4 ------------------------- ..1.Be5 2.Ra4 ------------------------- ..1.Bc8 2.Qd6 ..1.Be8 2.Qd6 ------------------------- 10.797 [- - - bB - - wK - ] [ ] [- - - - - - bN - ] [ ] [bR - - - wR - wN - ] [ ] [- - - bK - - - - ] [ ] [- wP - wN - - - - ] [ ] [- - - wP - - - - ] [ ] [- - - - - wQ bN - ] [ ] [- - - - - - - bB] -------------------------------------------------------- Solution: 1.Nb5 ..1.Bc7 2.Nc7 ..1.Be7 2.Nc7 ..1.Bf6 2.Nc7 ..1.Bg5 2.Nc7 ..1.Bh4 2.Nc7 ------------------------- ..1.Ne1 2.Nf4 ..1.Ne3 2.Nf4 ..1.Nf4 2.Nf4 ..1.Nh4 2.Nf4 ------------------------- ..1.Ra1 2.Rd6 ..1.Ra2 2.Rd6 ..1.Ra3 2.Rd6 ..1.Ra4 2.Rd6 ..1.Ra5 2.Rd6 ..1.Ra7 2.Rd6 ..1.Ra8 2.Rd6 ..1.Rd6 2.Rd6 ------------------------- ..1.Bb6 2.Rd6 ------------------------- ..1.Rc6 2.Re5 ------------------------- ..1.Rb6 2.Qa2 ------------------------- ..1.Ba5 2.Qa2 ------------------------- ..1.Re6 2.Qc5 ------------------------- ..1.Ne6 2.Qf3 ------------------------- ..1.Ne8 2.Qf5 ..1.Nf5 2.Qf5 ..1.Nh5 2.Qf5 ------------------------- ..1.Ke6 2.Qf7 ------------------------- 15.995 [wK - - - - - - - ] [ ] [- - - bP - - wQ - ] [ ] [- - - - bK - - - ] [ ] [- - - - - - - wR] [ ] [- - - - - wP - wN] [ ] [- - - - - - - - ] [ ] [- - - - - - - - ] [ ] [- - - - - - - - ] -------------------------------------------------------- Solution: 1.Rc5 ..1.d6 2.f5 ------------------------- ..1.d5 2.Rc6 ------------------------- ..1.Kd6 2.Qe5 ------------------------- 4.040 [- - - - - - wQ -] [ ] [bP - - - - - - -] [ ] [- - - - wR - - -] [ ] [- bK wN - - - - -] [ ] [- - wR - - - - -] [ ] [- - - - wK - - -] [ ] [- - - - - - - -] [ ] [- - - - - - - -] -------------------------------------------------------- Solution: 1.Na4 ..1.Kc4 2.Rb6 ------------------------- ..1.a5 2.Rb6 ------------------------- ..1.a6 2.Re5 ------------------------- ..1.Ka5 2.Qg5 ------------------------- 4.007 [- - wB wK - - - -] [ ] [- wR - - - bP - -] [ ] [- bN - - - - wN -] [ ] [- - wB - - - - -] [ ] [bP wN - - bK - wP -] [ ] [bR bB - wR - - wP -] [ ] [- - - - - bR - -] [ ] [- wQ - bQ - - bB -] -------------------------------------------------------- Solution: 1.Ke8 ..1.Rc2 2.Bf5 ------------------------- ..1.Bc2 2.Re7 ------------------------- ..1.Qb1 2.Re3 ..1.Qc1 2.Re3 ..1.Qc2 2.Re3 ..1.Qd2 2.Re3 ..1.Qe1 2.Re3 ..1.Qe2 2.Re3 ..1.Qf1 2.Re3 ..1.Qf3 2.Re3 ..1.Qg4 2.Re3 ------------------------- ..1.Ra1 2.Re3 ..1.Ra2 2.Re3 ------------------------- ..1.Ra2 2.Re3 ..1.Rb2 2.Re3 ..1.Rd2 2.Re3 ..1.Re2 2.Re3 ..1.Rf1 2.Re3 ..1.Rf3 2.Re3 ..1.Rf4 2.Re3 ..1.Rf5 2.Re3 ..1.Rf6 2.Re3 ..1.Rg2 2.Re3 ..1.Rh2 2.Re3 ------------------------- ..1.Ba2 2.Re3 ..1.Bc4 2.Re3 ..1.Bd5 2.Re3 ..1.Be6 2.Re3 ------------------------- ..1.Bh2 2.Re3 ------------------------- ..1.Na8 2.Re3 ..1.Nc4 2.Re3 ..1.Nc8 2.Re3 ..1.Nd5 2.Re3 ..1.Nd7 2.Re3 ------------------------- ..1.f5 2.Re3 ..1.f6 2.Re3 ..1.g6 2.Re3 ------------------------- ..1.Qd3 2.Qd3 ------------------------- 90.369 [- - - - - - - -] [ ] [- - bP - - - - -] [ ] [- - - - - - - -] [ ] [- - - - - - - -] [ ] [- - wK - - - wB -] [ ] [- wN - - - - - -] [ ] [wQ bP bK - - - - -] [ ] [- - - - - - - -] %1 := [-, -, -, -, -, -, -, -] -------------------------------------------------------- Solution: 1.Qa7 ..1.Kb1 2.Bf5 ------------------------- ..1.b1 2.Qf2 ------------------------- ..1.c5 2.Qh7 ..1.c6 2.Qh7 ------------------------- 11.342 [- - - - - - - - ] [ ] [- - bP bN - - - - ] [ ] [wN - bK wN - - - - ] [ ] [wP - - wR - - - - ] [ ] [- bP - bB - - - - ] [ ] [- - - wR - - - wK] [ ] [- bR - - - - wQ - ] [ ] [bN - - - - - - - ] -------------------------------------------------------- Solution: 1.Re3 ..1.Ra2 2.Nb4 ..1.Rc2 2.Nb4 ..1.Rd2 2.Nb4 ..1.Re2 2.Nb4 ..1.Rf2 2.Nb4 ..1.Rg2 2.Nb4 ------------------------- ..1.Nb3 2.Nb4 ------------------------- ..1.b3 2.Nb4 ------------------------- ..1.Nb6 2.Nb8 ..1.Nb8 2.Nb8 ..1.Nc5 2.Nb8 ..1.Ne5 2.Nb8 ..1.Nf6 2.Nb8 ..1.Nf8 2.Nb8 ------------------------- ..1.d6 2.Rc5 ------------------------- ..1.Ba7 2.Rd2 ..1.Bb6 2.Rd2 ..1.Bc3 2.Rd2 ..1.Bc5 2.Rd2 ..1.Be3 2.Rd2 ..1.Be5 2.Rd2 ..1.Bf6 2.Rd2 ..1.Bg7 2.Rd2 ..1.Bh8 2.Rd2 ------------------------- ..1.Rb1 2.Rd4 ..1.Rb3 2.Rd4 ------------------------- ..1.Nc2 2.Rd4 ------------------------- 45.648 [- - - - - - wB - ] [ ] [wB - - bP wN - - - ] [ ] [- wR - wP bR - - - ] [ ] [- - bP - wP - wP - ] [ ] [- - - bK bP bP - - ] [ ] [- - bP - wR - - - ] [ ] [- - bP - - wP - wQ] [ ] [- - - - wN - - wK] -------------------------------------------------------- Solution: 1.f3 ..1.Re5 2.Nc2 ------------------------- ..1.Ke3 2.Nf5 ------------------------- ..1.e3 2.Rb4 ------------------------- ..1.c4 2.Rb5 ------------------------- ..1.Kc4 2.Re4 ..1.Ke5 2.Re4 ------------------------- ..1.Rd6 2.Re4 ..1.Re7 2.Re4 ..1.Rf6 2.Re4 ..1.Rg6 2.Re4 ..1.Rh6 2.Re4 ------------------------- ..1.c1 2.Re4 ------------------------- ..1.f3 2.Qf4 ------------------------- 12.031 [- - - - wB - - - ] [ ] [- bB bP - - - bP bQ] [ ] [- - - - wQ - - bP] [ ] [- - - - bP - - wP] [ ] [- - bP - bK - bP - ] [ ] [- wP wR - wP - wR - ] [ ] [- - - - - - - - ] [ ] [- - wK - - - - - ] -------------------------------------------------------- Solution: 1.Kd2 ..1.Ba6 2.Bc6 ------------------------- ..1.Qf5 2.Rc4 ..1.Qg6 2.Rc4 ..1.Qg8 2.Rc4 ..1.Qh8 2.Rc4 ------------------------- ..1.Ba8 2.Rc4 ..1.Bc6 2.Rc4 ..1.Bc8 2.Rc4 ------------------------- ..1.b3 2.Rc4 ------------------------- ..1.c5 2.Rc4 ..1.c6 2.Rc4 ------------------------- ..1.g5 2.Rc4 ..1.g6 2.Rc4 ------------------------- ..1.Bd5 2.Qg4 ------------------------- 16.068 [- - bN - wK - - - ] [ ] [- - - bP - - bP wN] [ ] [wR - wP bB bK - bR - ] [ ] [bN bQ - wR wP - - - ] [ ] [wB - - - - - wP - ] [ ] [- - wN - - - - - ] [ ] [- - - - wQ - - - ] [ ] [- - - - - - - - ] -------------------------------------------------------- Solution: Not Mate-In-Two 98.504 [wK - - - - - - - ] [ ] [wN - bP bB - wQ - bP] [ ] [- - wB - wR - - - ] [ ] [- - - - wB - - - ] [ ] [- - bK - - bN wR - ] [ ] [wP wN - - - - - - ] [ ] [- - wP - - bR - - ] [ ] [- - - - - - - bQ] -------------------------------------------------------- Solution: 1.Be4 ..1.c5 2.Na5 ------------------------- ..1.Nd5 2.Bd3 ------------------------- ..1.Ne6 2.Bf3 ------------------------- ..1.Qa1 2.Rc6 ..1.Qb1 2.Rc6 ..1.Qc1 2.Rc6 ..1.Qd1 2.Rc6 ..1.Qe1 2.Rc6 ..1.Qe4 2.Rc6 ..1.Qf1 2.Rc6 ..1.Qf3 2.Rc6 ..1.Qg1 2.Rc6 ..1.Qg2 2.Rc6 ..1.Qh2 2.Rc6 ..1.Qh3 2.Rc6 ..1.Qh4 2.Rc6 ..1.Qh5 2.Rc6 ..1.Qh6 2.Rc6 ------------------------- ..1.Rc2 2.Rc6 ..1.Rd2 2.Rc6 ..1.Re2 2.Rc6 ..1.Rf1 2.Rc6 ..1.Rf3 2.Rc6 ..1.Rg2 2.Rc6 ..1.Rh2 2.Rc6 ------------------------- ..1.Ba4 2.Rc6 ..1.Bb5 2.Rc6 ..1.Bc6 2.Rc6 ..1.Bc8 2.Rc6 ..1.Be8 2.Rc6 ------------------------- ..1.Nd3 2.Rc6 ..1.Ne2 2.Rc6 ..1.Ng2 2.Rc6 ..1.Ng6 2.Rc6 ..1.Nh3 2.Rc6 ..1.Nh5 2.Rc6 ------------------------- ..1.c6 2.Rc6 ------------------------- ..1.h5 2.Rc6 ..1.h6 2.Rc6 ------------------------- ..1.Be6 2.Qc7 ------------------------- 36.404 [- - wR - - - - - ] [ ] [- - - wR bP - - - ] [ ] [bP - - bB - - - wK] [ ] [- bB - - - - bP bN] [ ] [wN - wN bK - - - - ] [ ] [- - - bP - wB - - ] [ ] [- - bP wQ - - - - ] [ ] [- - - bN - - - - ] -------------------------------------------------------- Solution: 1.Qa5 ..1.e5 2.Rd6 ..1.e6 2.Rd6 ------------------------- ..1.Nf4 2.Qb6 ..1.Nf6 2.Qb6 ..1.Ng3 2.Qb6 ..1.Ng7 2.Qb6 ------------------------- ..1.c1 2.Qb6 ------------------------- ..1.g4 2.Qb6 ------------------------- ..1.Nb2 2.Qc3 ..1.Nc3 2.Qc3 ..1.Ne3 2.Qc3 ..1.Nf2 2.Qc3 ------------------------- ..1.Bc4 2.Qc5 ..1.Bc6 2.Qc5 ------------------------- ..1.d2 2.Qd2 ------------------------- ..1.Bd7 2.Qd5 ------------------------- ..1.Ba4 2.Qe5 ------------------------- 51.374 [bR - - - - - wN - ] [ ] [bB - - - wN - - - ] [ ] [- wP - - wK wB - bP] [ ] [wR - - bP - - - bK] [ ] [- - - bP wP - bP - ] [ ] [- - - - bP - - - ] [ ] [bB wP wR - wB - - - ] [ ] [- bR wQ - - - - - ] -------------------------------------------------------- Solution: 1.Bb5 ..1.e4 2.Bc4 ------------------------- ..1.g3 2.Be2 ------------------------- ..1.Bb8 2.Be8 ------------------------- ..1.Rb8 2.Rh2 ..1.Rc8 2.Rh2 ..1.Rd8 2.Rh2 ..1.Re8 2.Rh2 ..1.Rf8 2.Rh2 ..1.Rg8 2.Rh2 ------------------------- ..1.Ra1 2.Rh2 ..1.Rc1 2.Rh2 ------------------------- ..1.Bb3 2.Rh2 ..1.Bc4 2.Rh2 ------------------------- ..1.Bb6 2.Rh2 ------------------------- ..1.d3 2.Rh2 ------------------------- ..1.Rb2 2.Qh1 ------------------------- ..1.e2 2.Qh6 ------------------------- 58.798 [wK - - - - bB - - ] [ ] [- wP bR - wP - - - ] [ ] [- wQ - - wN - - bQ] [ ] [bP - - - wB wB - - ] [ ] [wP wN bK wP wP - - - ] [ ] [bN bP - - - bB - wR] [ ] [- wP - - wP - - - ] [ ] [- - - - - - - - ] -------------------------------------------------------- Solution: 1.Bd6 ..1.Rc8 2.c8 ------------------------- ..1.Qe6 2.Be6 ------------------------- ..1.Be2 2.Rc3 ..1.Be4 2.Rc3 ..1.Bg2 2.Rc3 ..1.Bg4 2.Rc3 ..1.Bh1 2.Rc3 ..1.Bh5 2.Rc3 ------------------------- ..1.b4 2.Qb4 ------------------------- ..1.Nb1 2.Qb5 ..1.Nb5 2.Qb5 ..1.Nc2 2.Qb5 ------------------------- ..1.Rb7 2.Qc5 ..1.Rc5 2.Qc5 ..1.Rd7 2.Qc5 ..1.Re7 2.Qc5 ------------------------- ..1.Rc6 2.Qc6 ------------------------- ..1.Qc1 2.Qc7 ..1.Qd2 2.Qc7 ..1.Qe3 2.Qc7 ..1.Qf4 2.Qc7 ..1.Qf6 2.Qc7 ..1.Qg5 2.Qc7 ..1.Qg6 2.Qc7 ..1.Qg7 2.Qc7 ..1.Qh3 2.Qc7 ..1.Qh4 2.Qc7 ..1.Qh5 2.Qc7 ..1.Qh7 2.Qc7 ..1.Qh8 2.Qc7 ------------------------- ..1.Be7 2.Qc7 ..1.Bg7 2.Qc7 ------------------------- 97.779 [- - - - bB wK - - ] [ ] [- - - - - bN wN - ] [ ] [- - - - - - - - ] [ ] [- - wB - bP - - - ] [ ] [- - bN - - bK wN wP] [ ] [- - - - - wP - wQ] [ ] [bQ - - - - bP - - ] [ ] [- - - - bR - - - ] -------------------------------------------------------- Solution: 1.Ne5 ..1.Qa1 2.Nd3 ..1.Qa4 2.Nd3 ..1.Qa5 2.Nd3 ..1.Qa6 2.Nd3 ..1.Qa7 2.Nd3 ..1.Qa8 2.Nd3 ..1.Qb2 2.Nd3 ------------------------- ..1.Ra1 2.Nd3 ..1.Rb1 2.Nd3 ..1.Rc1 2.Nd3 ..1.Re2 2.Nd3 ..1.Re4 2.Nd3 ..1.Rf1 2.Nd3 ..1.Rg1 2.Nd3 ..1.Rh1 2.Nd3 ------------------------- ..1.Ba4 2.Nd3 ..1.Bb5 2.Nd3 ..1.Bc6 2.Nd3 ..1.Bd7 2.Nd3 ------------------------- ..1.Na3 2.Nd3 ..1.Na5 2.Nd3 ..1.Nb6 2.Nd3 ..1.Nd2 2.Nd3 ..1.Nd6 2.Nd3 ..1.Ne3 2.Nd3 ------------------------- ..1.Nd6 2.Nd3 ..1.Nd8 2.Nd3 ..1.Ng5 2.Nd3 ..1.Nh6 2.Nd3 ..1.Nh8 2.Nd3 ------------------------- ..1.Qa3 2.Ng6 ..1.Qb3 2.Ng6 ..1.Qd2 2.Ng6 ..1.Qe2 2.Ng6 ------------------------- ..1.Rd1 2.Ng6 ..1.Re3 2.Ng6 ------------------------- ..1.Nb2 2.Ng6 ------------------------- ..1.f1 2.Ng6 ------------------------- ..1.Ne5 2.Ne6 ------------------------- ..1.Ne5 2.Nh5 ------------------------- ..1.Ke5 2.Qf5 ------------------------- ..1.Re5 2.Qg4 ------------------------- ..1.Qb1 2.Qh2 ..1.Qc2 2.Qh2 ------------------------- 24.710 [- - - - - wK - -] [ ] [bP - - - - - - -] [ ] [wQ - - - wB - - -] [ ] [- - - - wP - bP -] [ ] [- - - bK bN bB wR -] [ ] [wR - - - - - bP -] [ ] [- - - - - - wP -] [ ] [wN - - - wB - - -] -------------------------------------------------------- Solution: 1.Re3 ..1.Kc5 2.Nb3 ------------------------- ..1.Ke3 2.Nc2 ------------------------- ..1.Nc5 2.Nc2 ------------------------- ..1.Ke5 2.Bc3 ------------------------- ..1.Be5 2.Qa7 ------------------------- ..1.Nc3 2.Qa7 ..1.Nd2 2.Qa7 ..1.Nd6 2.Qa7 ..1.Nf2 2.Qa7 ..1.Nf6 2.Qa7 ------------------------- ..1.Be3 2.Qd6 ------------------------- 18.541 [- - - - - wN - - ] [ ] [- - wK - - - - - ] [ ] [- - - wN - - bP - ] [ ] [- - bP bK - bB - - ] [ ] [- - bP bR - - - - ] [ ] [- - wP - - - - - ] [ ] [- - wP bP - - wR wB] [ ] [- - - - - - bN wB] -------------------------------------------------------- Solution: 1.Ne4 ..1.Rd3 2.Nf6 ------------------------- ..1.Bc8 2.Nf6 ..1.Bd7 2.Nf6 ..1.Be6 2.Nf6 ..1.Bg4 2.Nf6 ..1.Bh3 2.Nf6 ------------------------- ..1.Ne2 2.Nf6 ..1.Nf3 2.Nf6 ..1.Nh3 2.Nf6 ------------------------- ..1.d1 2.Nf6 ------------------------- ..1.g5 2.Nf6 ------------------------- ..1.Re4 2.Rd2 ------------------------- ..1.Ke4 2.Re2 ------------------------- ..1.Be4 2.Rg5 ------------------------- 5.093 [- - - - - - - - ] [ ] [- - - bB wK - - - ] [ ] [- - - bP wR - - - ] [ ] [- - - - - - - wQ] [ ] [- - - - wB bP bP - ] [ ] [bN - wP - bK - - - ] [ ] [- - bQ - - wR - - ] [ ] [wN bR - - - - wB - ] -------------------------------------------------------- Solution: 1.Qb5 ..1.Nb5 2.Nc2 ..1.Nc4 2.Nc2 ------------------------- ..1.Bb5 2.Bc2 ------------------------- ..1.Be8 2.Bd3 ------------------------- ..1.Rb5 2.Rc2 ------------------------- ..1.Qa2 2.Re2 ..1.Qa4 2.Re2 ..1.Qb2 2.Re2 ..1.Qb3 2.Re2 ..1.Qc1 2.Re2 ..1.Qc3 2.Re2 ..1.Qd1 2.Re2 ..1.Qd2 2.Re2 ..1.Qe2 2.Re2 ------------------------- ..1.Ra1 2.Re2 ..1.Rb2 2.Re2 ..1.Rb3 2.Re2 ..1.Rb4 2.Re2 ..1.Rc1 2.Re2 ..1.Rd1 2.Re2 ..1.Re1 2.Re2 ..1.Rf1 2.Re2 ------------------------- ..1.Bc6 2.Re2 ..1.Bc8 2.Re2 ..1.Be6 2.Re2 ------------------------- ..1.d5 2.Re2 ------------------------- ..1.g3 2.Re2 ------------------------- ..1.Rg1 2.Qb6 ------------------------- ..1.Qd3 2.Qd3 ..1.Qf2 2.Qd3 ------------------------- ..1.Qe4 2.Qe2 ------------------------- ..1.f3 2.Qg5 ------------------------- 74.831 [wQ - - - - wR - - ] [ ] [- - bP - - - bN - ] [ ] [- - - - bP wN - - ] [ ] [bP - - - - - wK - ] [ ] [- - - - wB - bP - ] [ ] [- - - - - - bK bP] [ ] [- - bN - wR wN - bB] [ ] [bR - - - - - - - ] -------------------------------------------------------- Solution: 1.Bf3 ..1.f3 2.Ne4 ------------------------- ..1.Ra2 2.Nh1 ..1.Ra3 2.Nh1 ..1.Ra4 2.Nh1 ..1.Rh1 2.Nh1 ------------------------- ..1.Bg1 2.Nh1 ------------------------- ..1.Ne1 2.Nh1 ------------------------- ..1.Rb1 2.Ne4 ..1.Rc1 2.Ne4 ..1.Rd1 2.Ne4 ..1.Re1 2.Ne4 ..1.Rf1 2.Ne4 ..1.Rg1 2.Ne4 ------------------------- ..1.Na3 2.Ne4 ..1.Nb4 2.Ne4 ..1.Nd4 2.Ne4 ..1.Ne3 2.Ne4 ------------------------- ..1.Ne8 2.Ne4 ..1.Nh5 2.Ne4 ------------------------- ..1.a4 2.Ne4 ------------------------- ..1.c5 2.Ne4 ..1.c6 2.Ne4 ------------------------- ..1.e5 2.Ne4 ------------------------- ..1.Nf5 2.Nh5 ------------------------- 18.154 [- bN - wB - - - - ] [ ] [- - - - - wR - - ] [ ] [wR - bP - - - - - ] [ ] [- - - - - - bP bR] [ ] [bP bP - - - - bP - ] [ ] [bP - - - - - bP - ] [ ] [wP - - bK - - - - ] [ ] [- wK - wN - wQ - - ] -------------------------------------------------------- Solution: 1.Ba5 ..1.Rh1 2.Bb4 ..1.Rh2 2.Bb4 ..1.Rh3 2.Bb4 ..1.Rh4 2.Bb4 ..1.Rh6 2.Bb4 ..1.Rh7 2.Bb4 ..1.Rh8 2.Bb4 ------------------------- ..1.Nd7 2.Bb4 ------------------------- ..1.c5 2.Rd6 ------------------------- ..1.Na6 2.Rd7 ------------------------- ..1.g2 2.Rf2 ------------------------- 50.014 [- bB - - - - - bQ] [ ] [wP - - wP wP bP - - ] [ ] [- - - - - wB bP - ] [ ] [wR - - bB - - wN - ] [ ] [- - - - bP bK wP wQ] [ ] [- - bN - bP - wN wP] [ ] [- - - - bN - wP - ] [ ] [wK - - - - - - - ] -------------------------------------------------------- Solution: 1.Nf7 ..1.Qh4 2.b8 ..1.Qh6 2.b8 ------------------------- ..1.Qc8 2.g5 ..1.Qd8 2.g5 ..1.Qe8 2.g5 ..1.Qf6 2.g5 ..1.Qf8 2.g5 ..1.Qg7 2.g5 ..1.Qg8 2.g5 ------------------------- ..1.Qh5 2.h5 ------------------------- ..1.Na2 2.Ne2 ..1.Na4 2.Ne2 ..1.Nb1 2.Ne2 ..1.Nb5 2.Ne2 ..1.Nd1 2.Ne2 ------------------------- ..1.Qh7 2.Bg5 ------------------------- ..1.Ba7 2.Bg5 ..1.Bc7 2.Bg5 ..1.Bd6 2.Bg5 ..1.Be5 2.Bg5 ------------------------- ..1.Ba2 2.Bg5 ..1.Ba8 2.Bg5 ..1.Bb3 2.Bg5 ..1.Bb7 2.Bg5 ..1.Bc4 2.Bg5 ..1.Bc6 2.Bg5 ..1.Be6 2.Bg5 ..1.Bf7 2.Bg5 ------------------------- ..1.Nc1 2.Bg5 ..1.Nd4 2.Bg5 ..1.Ng1 2.Bg5 ..1.Ng3 2.Bg5 ------------------------- ..1.g5 2.Bg5 ------------------------- 46.971 [- wB - - - - - wK] [ ] [wR - - - - wP bP bP] [ ] [wB - - - - bP - - ] [ ] [- wQ - - wN wP - bQ] [ ] [- - - - bK - - - ] [ ] [- - wP wN bR bP - wR] [ ] [- - bP wP bR - - - ] [ ] [- - bN - - - - - ] -------------------------------------------------------- Solution: 1.Nc4 ..1.Rd2 2.Nd2 ------------------------- ..1.Qf5 2.Nd6 ..1.Qf7 2.Nd6 ..1.Qg4 2.Nd6 ..1.Qg5 2.Nd6 ..1.Qg6 2.Nd6 ..1.Qh3 2.Nd6 ..1.Qh4 2.Nd6 ..1.Qh6 2.Nd6 ------------------------- ..1.Re1 2.Nd6 ..1.Rf2 2.Nd6 ..1.Rg2 2.Nd6 ..1.Rh2 2.Nd6 ------------------------- ..1.Na2 2.Nd6 ..1.Nb3 2.Nd6 ------------------------- ..1.f2 2.Nd6 ------------------------- ..1.g5 2.Nd6 ..1.g6 2.Nd6 ------------------------- ..1.h6 2.Nd6 ------------------------- ..1.Nd3 2.Bb7 ------------------------- ..1.Rd3 2.Re7 ------------------------- ..1.Kd3 2.Qd5 ------------------------- 13.682 [- - - - - wN - - ] [ ] [- - - - - wN - - ] [ ] [- - - - - bP - bP] [ ] [wR - - - bQ bK - bN] [ ] [wR - - - - bP bP - ] [ ] [- bP wP wK - - bP - ] [ ] [- wP - wP - - wP - ] [ ] [- - - - - wQ - - ] -------------------------------------------------------- Solution: 1.Qe2 ..1.Qb5 2.Rb5 ------------------------- ..1.Qd5 2.Rd5 ------------------------- ..1.Qa5 2.Qe4 ..1.Qc5 2.Qe4 ------------------------- ..1.Ng7 2.Qe4 ------------------------- ..1.f3 2.Qe4 ------------------------- 25.953 [- - - - - wN - - ] [ ] [- - - - - wN - - ] [ ] [- - - - - bP - bP] [ ] [wR - - - bQ bK - bN] [ ] [wR - - - - bB bP - ] [ ] [- bP wP wK - - bP - ] [ ] [- wP - wP - - wP - ] [ ] [- - - - - wQ - - ] -------------------------------------------------------- Solution: 1.Qb1 ..1.Bg5 2.Nd6 ------------------------- ..1.Ng7 2.Kc4 ------------------------- ..1.Bd2 2.Kd2 ------------------------- ..1.Qa5 2.Kd4 ..1.Qb5 2.Kd4 ------------------------- ..1.Qc5 2.Ke2 ..1.Qd5 2.Ke2 ------------------------- ..1.Be3 2.Ke2 ------------------------- 45.296 [- - - bN - - wB bQ] [ ] [- - - - bR - - bB] [ ] [- - - - wN - - - ] [ ] [- wR - - bP - bP - ] [ ] [- - - bP bK wB - - ] [ ] [- - - - bP - - wQ] [ ] [- - - - wP - - - ] [ ] [- wK - - - - - - ] -------------------------------------------------------- Solution: 1.Bh2 ..1.Qf6 2.Nc5 ------------------------- ..1.Rf7 2.Ng5 ------------------------- ..1.Qg8 2.Re5 ------------------------- ..1.Rg7 2.Re5 ------------------------- ..1.Qg7 2.Qf3 ------------------------- ..1.Ra7 2.Qf3 ..1.Rb7 2.Qf3 ..1.Rc7 2.Qf3 ..1.Rd7 2.Qf3 ..1.Re6 2.Qf3 ..1.Re8 2.Qf3 ------------------------- ..1.Bf5 2.Qf3 ..1.Bg6 2.Qf3 ..1.Bg8 2.Qf3 ------------------------- ..1.Nb7 2.Qf3 ..1.Nc6 2.Qf3 ..1.Ne6 2.Qf3 ..1.Nf7 2.Qf3 ------------------------- ..1.d3 2.Qf3 ------------------------- ..1.g4 2.Qg4 ------------------------- 37.320 [- - - - - - - - ] [ ] [- - - - - wN bP wB] [ ] [- - - - - - wR - ] [ ] [- - - - - bK - - ] [ ] [- - wP - - - - - ] [ ] [- - bP - - - wP - ] [ ] [- - - - - wK bN bP] [ ] [- - wB - - - - wQ] -------------------------------------------------------- Solution: 1.Qg2 ..1.c2 2.g4 ------------------------- ..1.h1 2.g4 ------------------------- 16.855 [- - - - - - wK wB] [ ] [wR wB - - - - - - ] [ ] [- - - - wP - - - ] [ ] [- - wN - - - wN wR] [ ] [bN wQ wP - - bK wP bB] [ ] [- - - - - - bP wP] [ ] [- - bB wP bR - wP - ] [ ] [- - - - - - - - ] -------------------------------------------------------- Solution: 1.Be4 ..1.Bb3 2.Nd3 ..1.Bd1 2.Nd3 ..1.Bd3 2.Nd3 ------------------------- ..1.Re1 2.Rf7 ..1.Re3 2.Rf7 ..1.Re4 2.Rf7 ..1.Rf2 2.Rf7 ..1.Rg2 2.Rf7 ------------------------- ..1.Bb1 2.Rf7 ------------------------- ..1.Nb2 2.Rf7 ..1.Nb6 2.Rf7 ..1.Nc3 2.Rf7 ..1.Nc5 2.Rf7 ------------------------- ..1.Be4 2.Qb8 ------------------------- ..1.Bg5 2.Qb8 ------------------------- ..1.Rd2 2.Qd2 ------------------------- 41.608 [wB wB bN - wR bB - - ] [ ] [- - bR wP - - - wK] [ ] [- - - bK wP bP - - ] [ ] [- - - - - wQ - - ] [ ] [- - - wP - - wR wN] [ ] [- - wN - - - - - ] [ ] [bB - - - - bN - - ] [ ] [- bQ - - - - - - ] -------------------------------------------------------- Solution: Not Mate-In-Two 309.754 [- - - - - - - - ] [ ] [- - - - bP - wR - ] [ ] [- - wB - wP - wR - ] [ ] [- - - - - bK - - ] [ ] [- - - - - - - bR] [ ] [- - - - - - - - ] [ ] [- wB - - wN wP wP bB] [ ] [- wK - - - wQ - - ] -------------------------------------------------------- Solution: 1.f4 ..1.Rf4 2.g4 ..1.Rh3 2.g4 ..1.Rh5 2.g4 ..1.Rh6 2.g4 ..1.Rh7 2.g4 ..1.Rh8 2.g4 ------------------------- ..1.Rg4 2.Nd4 ------------------------- ..1.Bg3 2.Nd4 ------------------------- ..1.Bf4 2.Ng3 ..1.Bg1 2.Ng3 ------------------------- 4.659 [- - - - wB - - bN] [ ] [- - - - - bN - - ] [ ] [- - - - - - - - ] [ ] [- bP - bP - wQ wP bK] [ ] [bP wR - bP - - - wP] [ ] [wK - - - - - wP - ] [ ] [- - - - - - - - ] [ ] [- - - - - - - - ] -------------------------------------------------------- Solution: 1.Qe6 ..1.Ng6 2.Qe2 ------------------------- ..1.d3 2.Qh6 ------------------------- 6.518 [- - - - - - - - ] [ ] [- - - - - - - - ] [ ] [- - wQ - - - - - ] [ ] [- - - - - - - - ] [ ] [- - - - - - bP - ] [ ] [- - - - - - wP bQ] [ ] [- - - - wN - wR - ] [ ] [- - - - - wK - bK] -------------------------------------------------------- Solution: 1.Qe4 ..1.Qg3 2.Ng3 ------------------------- ..1.Qh4 2.Rf2 ..1.Qh5 2.Rf2 ..1.Qh6 2.Rf2 ..1.Qh8 2.Rf2 ------------------------- ..1.Qh2 2.Rg1 ------------------------- ..1.Qg2 2.Qg2 ------------------------- ..1.Qh7 2.Qh7 ------------------------- 6.549 [- - - - wN - wK - ] [ ] [- - - - - bP - - ] [ ] [bN bP bP - - - wB - ] [ ] [- bB - - - - wQ wR] [ ] [- - bK bP bP - - bP] [ ] [- wN - - - - - bR] [ ] [wP wP - - wP bQ - bB] [ ] [- - - wR wB - - - ] -------------------------------------------------------- Solution: 1.Qg3 ..1.Nb4 2.Nd2 ------------------------- ..1.Qe3 2.Nd6 ..1.Qg1 2.Nd6 ------------------------- ..1.Rg3 2.Nd6 ------------------------- ..1.Ba4 2.Nd6 ------------------------- ..1.Bg1 2.Nd6 ------------------------- ..1.Nb8 2.Nd6 ..1.Nc5 2.Nd6 ..1.Nc7 2.Nd6 ------------------------- ..1.c5 2.Nd6 ------------------------- ..1.d3 2.Nd6 ------------------------- ..1.f6 2.Nd6 ..1.g6 2.Nd6 ------------------------- ..1.g3 2.Nd6 ------------------------- ..1.f5 2.Bf7 ------------------------- ..1.Qf6 2.Rc1 ------------------------- ..1.Bg3 2.Rc1 ------------------------- ..1.Qe1 2.Rd4 ..1.Qe2 2.Rd4 ..1.Qf1 2.Rd4 ..1.Qf3 2.Rd4 ..1.Qf4 2.Rd4 ..1.Qf5 2.Rd4 ..1.Qg2 2.Rd4 ..1.Qg3 2.Rd4 ------------------------- ..1.e3 2.Rd4 ------------------------- 176.459 [- - - - wR - bB bQ] [ ] [- - - - - - bR - ] [ ] [- - - - bP - - bB] [ ] [wR - - - - - - wN] [ ] [- - - bP bK - - bP] [ ] [- wB - bP - - - bP] [ ] [wK - - wP - - - wN] [ ] [bN wQ - - - - - - ] -------------------------------------------------------- Solution: 1.Be6 ..1.Bf4 2.Nf6 ------------------------- ..1.Rf7 2.Bf5 ------------------------- ..1.Bh7 2.Bf5 ------------------------- ..1.Nb3 2.Bf5 ------------------------- ..1.Qh7 2.Bf7 ------------------------- ..1.Bd2 2.Bf7 ..1.Be3 2.Bf7 ------------------------- ..1.Nc2 2.Bf7 ------------------------- ..1.Be6 2.Re6 ------------------------- ..1.Rb7 2.Qb7 ..1.Rg1 2.Qb7 ..1.Rg2 2.Qb7 ..1.Rg3 2.Qb7 ..1.Rg4 2.Qb7 ..1.Rg6 2.Qb7 ------------------------- ..1.Bf7 2.Qb7 ------------------------- ..1.Rg5 2.Qe1 ------------------------- ..1.Ra7 2.Qh1 ..1.Rc7 2.Qh1 ..1.Rd7 2.Qh1 ..1.Re7 2.Qh1 ..1.Rh7 2.Qh1 ------------------------- ..1.Bg5 2.Qh1 ------------------------- 42.010 [wK - - - - - - -] [ ] [- - wR bP bP - - -] [ ] [wN - wP - - bP - -] [ ] [- - - bK wP wQ - -] [ ] [wR bN bP - - - - -] [ ] [wB bN - bR bP wP - -] [ ] [- - wB - wN - - -] [ ] [- - - - - - - -] -------------------------------------------------------- Solution: 1.Rc8 ..1.Na2 2.e6 ..1.Na6 2.e6 ..1.Nc2 2.e6 ------------------------- ..1.d6 2.e6 ------------------------- ..1.Nc5 2.Nb4 ------------------------- ..1.Nc6 2.Nc7 ------------------------- ..1.Rd4 2.Nc3 ------------------------- ..1.Nd4 2.Nf4 ------------------------- ..1.c3 2.Bb3 ------------------------- ..1.Rc3 2.Be4 ..1.Rd1 2.Be4 ..1.Rd2 2.Be4 ------------------------- ..1.Na1 2.Ra5 ..1.Na5 2.Ra5 ..1.Nc1 2.Ra5 ..1.Nd2 2.Ra5 ------------------------- ..1.c6 2.Rd8 ------------------------- ..1.e5 2.Qd7 ------------------------- ..1.e6 2.Qe4 ------------------------- 52.533 [- wK - - bN - - - ] [ ] [- - bP - bR bP - - ] [ ] [- bP wQ - - - bP - ] [ ] [- wN - wB bK - - - ] [ ] [- bP - - wP - - wR] [ ] [- - - - wN - - - ] [ ] [- - - bN - wR - - ] [ ] [- - - bQ - - - - ] -------------------------------------------------------- Solution: 1.Qc1 ..1.Nb1 2.Nc4 ..1.Nb3 2.Nc4 ..1.Nc4 2.Nc4 ..1.Nf1 2.Nc4 ------------------------- ..1.Qa4 2.Ng4 ..1.Qb3 2.Ng4 ..1.Qc1 2.Ng4 ..1.Qc2 2.Ng4 ..1.Qe1 2.Ng4 ..1.Qf1 2.Ng4 ..1.Qg4 2.Ng4 ..1.Qh1 2.Ng4 ------------------------- ..1.Nf3 2.Ng4 ------------------------- ..1.g5 2.Rf5 ------------------------- ..1.Ne4 2.Re4 ------------------------- ..1.Qe2 2.Qb2 ..1.Qf3 2.Qb2 ..1.Qg1 2.Qb2 ..1.Qh5 2.Qb2 ------------------------- ..1.Rd7 2.Qb2 ..1.Re6 2.Qb2 ------------------------- ..1.Nd6 2.Qb2 ..1.Nf6 2.Qb2 ..1.Ng7 2.Qb2 ------------------------- ..1.c5 2.Qb2 ..1.c6 2.Qb2 ------------------------- ..1.f5 2.Qb2 ..1.f6 2.Qb2 ------------------------- ..1.b3 2.Qc3 ------------------------- 313.062 [bQ - - - - wN - -] [ ] [bP - bP - - - - -] [ ] [- - bP wR - - - -] [ ] [- - bK bP wP - - -] [ ] [- - - - - - - -] [ ] [- - - - - - - -] [ ] [- - - wP - - - -] [ ] [- - - wK - - - -] -------------------------------------------------------- Solution: Not Mate-In-Two 2.195 [bQ bB - - wR - - - ] [ ] [bP - - bR - - - - ] [ ] [- - wB - - - wN - ] [ ] [- - - - - - - bR] [ ] [- - bP - wN bP - - ] [ ] [- - wP bK wB bP - bB] [ ] [- wP - - - - - wR] [ ] [- - wK - - bN wQ - ] -------------------------------------------------------- Solution: 1.Bb6 ..1.Rc5 2.Nc5 ..1.Rh4 2.Nc5 ..1.Rh6 2.Nc5 ..1.Rh7 2.Nc5 ..1.Rh8 2.Nc5 ------------------------- ..1.Be5 2.Nc5 ------------------------- ..1.Bf5 2.Nc5 ------------------------- ..1.Qb7 2.Nf2 ..1.Qc6 2.Nf2 ------------------------- ..1.Rd5 2.Nf2 ..1.Rd6 2.Nf2 ..1.Rd8 2.Nf2 ------------------------- ..1.Ra5 2.Nf2 ..1.Rb5 2.Nf2 ..1.Rd5 2.Nf2 ..1.Rf5 2.Nf2 ..1.Rg5 2.Nf2 ------------------------- ..1.Bc7 2.Nf2 ------------------------- ..1.Bg2 2.Nf2 ..1.Bg4 2.Nf2 ------------------------- ..1.a5 2.Nf2 ..1.a6 2.Nf2 ..1.b6 2.Nf2 ------------------------- ..1.f2 2.Nf2 ------------------------- ..1.Re5 2.Nf4 ------------------------- ..1.Nd2 2.Rd2 ..1.Ne3 2.Rd2 ..1.Ng3 2.Rd2 ------------------------- ..1.Nh2 2.Qd1 ------------------------- ..1.Rb7 2.Qd4 ..1.Rc7 2.Qd4 ..1.Rd4 2.Qd4 ..1.Re7 2.Qd4 ..1.Rf7 2.Qd4 ..1.Rg7 2.Qd4 ..1.Rh7 2.Qd4 ------------------------- ..1.Bd6 2.Qd4 ------------------------- ..1.Be6 2.Qf1 ------------------------- 232.111 [- - - - - - - - ] [ ] [bB - bN wN - - - - ] [ ] [- bR - wR - - wK - ] [ ] [- wN - - - - - bP] [ ] [bP bR bK - - - - wP] [ ] [- - - wR - - - wQ] [ ] [bQ bN - - - - - - ] [ ] [- - - - - - - - ] -------------------------------------------------------- Solution: 1.Qf1 ..1.Qb1 2.Na3 ------------------------- ..1.Rd6 2.Nd6 ------------------------- ..1.Qa1 2.Rc3 ..1.Qa3 2.Rc3 ..1.Qb3 2.Rc3 ------------------------- ..1.Ra6 2.Rc3 ..1.Rb7 2.Rc3 ..1.Rb8 2.Rc3 ..1.Rc6 2.Rc3 ------------------------- ..1.Bb8 2.Rc3 ------------------------- ..1.Nd1 2.Rc3 ------------------------- ..1.Na6 2.Rc3 ..1.Na8 2.Rc3 ..1.Nd5 2.Rc3 ..1.Ne6 2.Rc3 ..1.Ne8 2.Rc3 ------------------------- ..1.a3 2.Rc3 ------------------------- ..1.Rb3 2.Rd4 ------------------------- ..1.Kb5 2.Rd5 ------------------------- ..1.Rb5 2.Qc1 ------------------------- ..1.Nd3 2.Qd3 ------------------------- ..1.Rb5 2.Qf4 ------------------------- ..1.Nb5 2.Qf7 ------------------------- 33.774 [- bB - - - wB wK bN] [ ] [- - wR bP - - - - ] [ ] [bQ - bP - - - - - ] [ ] [wP bP bP bP bK wP wP bP] [ ] [- - - - - - - - ] [ ] [- wB - - bP wQ - - ] [ ] [- - - wN - - - - ] [ ] [- - wR - wN - - - ] -------------------------------------------------------- Solution: 1.Bc2 ..1.Kd4 2.Bg7 ------------------------- ..1.Qa5 2.Qe3 ..1.Qa7 2.Qe3 ..1.Qa8 2.Qe3 ..1.Qb6 2.Qe3 ..1.Qb7 2.Qe3 ..1.Qc8 2.Qe3 ------------------------- ..1.Ba7 2.Qe3 ..1.Bc7 2.Qe3 ------------------------- ..1.Nf7 2.Qe3 ..1.Ng6 2.Qe3 ------------------------- ..1.b4 2.Qe3 ------------------------- ..1.c4 2.Qe3 ------------------------- ..1.d6 2.Qe3 ------------------------- ..1.d2 2.Qe3 ..1.e2 2.Qe3 ------------------------- ..1.h4 2.Qe3 ------------------------- ..1.d4 2.Qe4 ------------------------- 90.278 [bB - - wK bN - - bB] [ ] [wB - - wN bP bQ - wB] [ ] [- - - - wQ - - - ] [ ] [bP wR - - bP wP - bP] [ ] [- - - wP bK - bN - ] [ ] [bR - - bR - wR wP - ] [ ] [- - - - wP - - - ] [ ] [- wN - - - - - - ] -------------------------------------------------------- Solution: 1.d5 ..1.Qe6 2.e6 ------------------------- ..1.Rf3 2.Nd2 ------------------------- ..1.Rd4 2.Nc5 ------------------------- ..1.Qf5 2.Rf4 ..1.Qf6 2.Rf4 ..1.Qf8 2.Rf4 ..1.Qg6 2.Rf4 ..1.Qg7 2.Rf4 ..1.Qg8 2.Rf4 ..1.Qh7 2.Rf4 ------------------------- ..1.Ra1 2.Rf4 ..1.Ra2 2.Rf4 ..1.Ra4 2.Rf4 ..1.Rb3 2.Rf4 ..1.Rc3 2.Rf4 ------------------------- ..1.Rb3 2.Rf4 ..1.Rc3 2.Rf4 ..1.Rd1 2.Rf4 ..1.Rd2 2.Rf4 ..1.Rd5 2.Rf4 ..1.Re3 2.Rf4 ------------------------- ..1.Bb7 2.Rf4 ..1.Bc6 2.Rf4 ..1.Bd5 2.Rf4 ------------------------- ..1.Bf6 2.Rf4 ..1.Bg7 2.Rf4 ------------------------- ..1.Nc7 2.Rf4 ..1.Nd6 2.Rf4 ..1.Nf6 2.Rf4 ..1.Ng7 2.Rf4 ------------------------- ..1.Ne3 2.Rf4 ..1.Nf2 2.Rf4 ..1.Nf6 2.Rf4 ..1.Nh2 2.Rf4 ..1.Nh6 2.Rf4 ------------------------- ..1.a4 2.Rf4 ------------------------- ..1.h4 2.Rf4 ------------------------- 39.051 [- - - bB bK bR - -] [ ] [- bP - bP wB wN - -] [ ] [- - - - - wK - -] [ ] [- - - - - - - -] [ ] [- wQ wB - - - - -] [ ] [- - - - - - - -] [ ] [- - - - - - - -] [ ] [- - - - - - - -] %1 := [-, -, -, -, -, -, -, -] -------------------------------------------------------- Solution: 1.Qe1 ..1.Rg8 2.Nd6 ..1.Rh8 2.Nd6 ------------------------- ..1.d5 2.Bb5 ..1.d6 2.Bb5 ------------------------- ..1.Rf7 2.Bf7 ------------------------- ..1.Ba5 2.Bb4 ------------------------- ..1.Bb6 2.Bc5 ------------------------- ..1.Bc7 2.Bd6 ------------------------- ..1.b5 2.Bd8 ..1.b6 2.Bd8 ------------------------- ..1.Be7 2.Qe7 ------------------------- 21.867 [- bB - - - - - - ] [ ] [- - - - - - - - ] [ ] [- wB - - - - - - ] [ ] [- bP bR - - wQ - wK] [ ] [- - - bK - - - - ] [ ] [wR - - wB - bN - - ] [ ] [- - bR - - wP - - ] [ ] [- - - - - - - - ] -------------------------------------------------------- Solution: 1.Bc4 ..1.c4 2.Bc5 ------------------------- ..1.Rc4 2.Rd3 ------------------------- ..1.Kc4 2.Qc5 ------------------------- ..1.Be5 2.Qd3 ------------------------- ..1.Ra2 2.Qd5 ..1.Rb2 2.Qd5 ..1.Rc1 2.Qd5 ..1.Rc3 2.Qd5 ..1.Rd2 2.Qd5 ..1.Re2 2.Qd5 ..1.Rf2 2.Qd5 ------------------------- ..1.Ba7 2.Qd5 ..1.Bc7 2.Qd5 ..1.Bd6 2.Qd5 ..1.Bf4 2.Qd5 ..1.Bg3 2.Qd5 ..1.Bh2 2.Qd5 ------------------------- ..1.Nd2 2.Qd5 ..1.Ne1 2.Qd5 ..1.Ng1 2.Qd5 ..1.Ng5 2.Qd5 ..1.Nh2 2.Qd5 ..1.Nh4 2.Qd5 ------------------------- ..1.b4 2.Qd5 ------------------------- ..1.Ne5 2.Qf4 ------------------------- 5.307 [- - - - - - bN - ] [ ] [wK - - - wP - wR - ] [ ] [- bP - - wN - - bQ] [ ] [- - - - wP bK - bP] [ ] [wQ - wN - - - bP wP] [ ] [- - - wR - - - - ] [ ] [- - - - - - wB - ] [ ] [wB - - - - - - bB] -------------------------------------------------------- Solution: 1.Nf4 ..1.Kf4 2.Nd6 ------------------------- ..1.Qd6 2.Nd6 ..1.Qg5 2.Nd6 ..1.Qg7 2.Nd6 ..1.Qh7 2.Nd6 ..1.Qh8 2.Nd6 ------------------------- ..1.Nf6 2.Nd6 ------------------------- ..1.Qc6 2.Ne3 ..1.Qe6 2.Ne3 ..1.Qf6 2.Ne3 ..1.Qg6 2.Ne3 ------------------------- ..1.Bg2 2.Ne3 ------------------------- ..1.Ne7 2.Ne3 ------------------------- ..1.b5 2.Ne3 ------------------------- ..1.g3 2.Ne3 ------------------------- ..1.Qf4 2.Qd7 ------------------------- 11.156 [- - - wR - - - - ] [ ] [- - wK - - bP - - ] [ ] [wP - - - bP wP - - ] [ ] [- - bK - wN bP - wQ] [ ] [- - - - - - bP wR] [ ] [wP - - - bP - - - ] [ ] [- - wN bN wB - - - ] [ ] [- - - - wB - - - ] -------------------------------------------------------- Solution: 1.a4 ..1.g3 2.Nd3 ------------------------- ..1.f4 2.Nd7 ------------------------- ..1.Nb1 2.Bb4 ..1.Nb3 2.Bb4 ..1.Nc4 2.Bb4 ..1.Ne4 2.Bb4 ..1.Nf1 2.Bb4 ..1.Nf3 2.Bb4 ------------------------- 24.792 [- - - - - - - wB] [ ] [- - wN bP - bP - - ] [ ] [- - - bR bB bP wR wK] [ ] [- - - wP bK bP bP - ] [ ] [- - - bP bP - - - ] [ ] [wQ - - - - - wN - ] [ ] [- - - - - - wP - ] [ ] [- - - - wR - - - ] -------------------------------------------------------- Solution: 1.Rf6 ..1.Kf4 2.Re4 ------------------------- ..1.f4 2.Re4 ------------------------- ..1.Ra6 2.Rf5 ..1.Rb6 2.Rf5 ..1.Rc6 2.Rf5 ..1.Rd5 2.Rf5 ------------------------- ..1.d3 2.Rf5 ------------------------- ..1.e3 2.Rf5 ------------------------- ..1.g4 2.Rf5 ------------------------- ..1.Bd5 2.Qd6 ------------------------- 10.975 [- - wB - bK - - bR] [ ] [- - - - - bN - bP] [ ] [- - wN bP - - - - ] [ ] [- - - wR - - wB wQ] [ ] [- - - - - - - - ] [ ] [- - - - - - - - ] [ ] [- - - - - - - - ] [ ] [- - - - wK - - wR] -------------------------------------------------------- Solution: 1.Ne5 ..1.Rf8 2.Bd7 ------------------------- ..1.e5 2.Rd8 ------------------------- ..1.Kf8 2.Qf7 ------------------------- ..1.Rg8 2.Qf7 ------------------------- ..1.h6 2.Qf7 ------------------------- 9.929 [- - - - - - - -] [ ] [- - - - - - - -] [ ] [- - wB - - - - -] [ ] [- - - - - - wB -] [ ] [- - - - - - - -] [ ] [- - wK wN - - - -] [ ] [- - - - bK bP - -] [ ] [wR - - - - - - -] -------------------------------------------------------- Solution: 1.Rd1 ..1.Kd1 2.Bf3 ------------------------- ..1.f1 2.Rd2 ------------------------- 6.806 [- - wK - - - - -] [ ] [bP - - - - - - -] [ ] [wP - - bP - - - -] [ ] [- bK - wN - wR - -] [ ] [- wP - - - - - -] [ ] [- wR bP - bP wN - -] [ ] [- - wB wP wP - - -] [ ] [- - - - - - - -] -------------------------------------------------------- Solution: 1.d4 ..1.Kc6 2.b5 ------------------------- ..1.Ka4 2.Nc3 ------------------------- ..1.Kc4 2.Ne3 ------------------------- ..1.Ka6 2.Bd3 ------------------------- 3.441 [wQ - - - - - - - ] [ ] [- - bP bP - wN - - ] [ ] [- bB wR - - - bP - ] [ ] [- bR - bK wB bP - bQ] [ ] [bB - - - - - bR - ] [ ] [wN bN - - - - - - ] [ ] [- - wP bP wR - - - ] [ ] [- - - wK - - bN - ] -------------------------------------------------------- Solution: 1.Bd4 ..1.Bd4 2.c4 ------------------------- ..1.Kd4 2.Rc4 ------------------------- ..1.Rd4 2.Rc7 ------------------------- ..1.Qg5 2.Rd6 ..1.Qh1 2.Rd6 ..1.Qh2 2.Rd6 ..1.Qh3 2.Rd6 ..1.Qh4 2.Rd6 ..1.Qh6 2.Rd6 ..1.Qh7 2.Rd6 ..1.Qh8 2.Rd6 ------------------------- ..1.Ra5 2.Rd6 ..1.Rb4 2.Rd6 ..1.Rc5 2.Rd6 ------------------------- ..1.Re4 2.Rd6 ..1.Rf4 2.Rd6 ..1.Rg2 2.Rd6 ..1.Rg3 2.Rd6 ..1.Rg5 2.Rd6 ..1.Rh4 2.Rd6 ------------------------- ..1.Ba5 2.Rd6 ..1.Ba7 2.Rd6 ..1.Bc5 2.Rd6 ------------------------- ..1.Na1 2.Rd6 ..1.Na5 2.Rd6 ..1.Nc1 2.Rd6 ..1.Nc5 2.Rd6 ------------------------- ..1.Ne2 2.Rd6 ..1.Nf3 2.Rd6 ..1.Nh3 2.Rd6 ------------------------- ..1.d6 2.Rd6 ------------------------- ..1.f4 2.Rd6 ------------------------- ..1.g5 2.Rd6 ------------------------- ..1.Nd4 2.Re5 ------------------------- ..1.c6 2.Qd8 ------------------------- 14.085 [- - - - - - - - ] [ ] [- - - - - wK - bN] [ ] [- - bP - wP wR - wB] [ ] [- - wR - bP wP bP - ] [ ] [- - - bP bB bK - - ] [ ] [- - wP - - wN bN wB] [ ] [- - - wP - - wP - ] [ ] [- - - - wQ - - - ] -------------------------------------------------------- Solution: 1.c4 ..1.Nf6 2.Bg5 ..1.Nf8 2.Bg5 ------------------------- ..1.d3 2.Qe3 ------------------------- ..1.Bb1 2.Qe5 ..1.Bc2 2.Qe5 ..1.Bd3 2.Qe5 ..1.Bd5 2.Qe5 ..1.Bf3 2.Qe5 ..1.Bf5 2.Qe5 ------------------------- ..1.Ne2 2.Qh4 ..1.Nf1 2.Qh4 ..1.Nf5 2.Qh4 ..1.Nh1 2.Qh4 ..1.Nh5 2.Qh4 ------------------------- 38.218 [- - - - - bB wK - ] [ ] [- - - - - bR - - ] [ ] [- - - - - - - wB] [ ] [- - - - bP - wR - ] [ ] [- - wN - - - - bN] [ ] [- - wP - - - - - ] [ ] [wB - bP - wP - - - ] [ ] [- - bK bB - - - wQ] -------------------------------------------------------- Solution: 1.Qb7 ..1.Ba3 2.Rf5 ..1.Bb4 2.Rf5 ------------------------- ..1.Be2 2.Rg1 ------------------------- ..1.Rb7 2.Rg7 ..1.Rg7 2.Rg7 ------------------------- ..1.Rc7 2.Qb2 ..1.Rd7 2.Qb2 ..1.Re7 2.Qb2 ..1.Rf1 2.Qb2 ..1.Rf2 2.Qb2 ..1.Rf3 2.Qb2 ..1.Rf4 2.Qb2 ..1.Rf5 2.Qb2 ..1.Rf6 2.Qb2 ..1.Rh7 2.Qb2 ------------------------- ..1.Bc5 2.Qb2 ..1.Bd6 2.Qb2 ..1.Be7 2.Qb2 ..1.Bg7 2.Qb2 ..1.Bh6 2.Qb2 ------------------------- ..1.Nf3 2.Qb2 ..1.Nf5 2.Qb2 ..1.Ng2 2.Qb2 ..1.Ng6 2.Qb2 ------------------------- ..1.e4 2.Qb2 ------------------------- 58.702 [bN wR - - - - - - ] [ ] [bR - - wB - - - - ] [ ] [bP - wP - wP bP - - ] [ ] [- wP - bK - wK - - ] [ ] [wN - - wN - - - - ] [ ] [wB wP bB wR bP wP - wQ] [ ] [- - wP - wP - bP - ] [ ] [- - - bN - - bR - ] -------------------------------------------------------- Solution: 1.Kf4 ..1.Ba1 2.c4 ..1.Ba5 2.c4 ..1.Bb2 2.c4 ..1.Bd2 2.c4 ..1.Bd4 2.c4 ..1.Be1 2.c4 ------------------------- ..1.Bb4 2.Nf5 ------------------------- ..1.b5 2.Rb5 ------------------------- ..1.Rb7 2.Qf5 ..1.Rc7 2.Qf5 ..1.Rd7 2.Qf5 ------------------------- ..1.Re1 2.Qf5 ..1.Rf1 2.Qf5 ..1.Rh1 2.Qf5 ------------------------- ..1.Nb6 2.Qf5 ..1.Nc7 2.Qf5 ------------------------- ..1.Nb2 2.Qf5 ..1.Nf2 2.Qf5 ------------------------- ..1.a5 2.Qf5 ------------------------- ..1.f5 2.Qf5 ------------------------- 52.850 [wK - - - - - - - ] [ ] [- - - - - - - - ] [ ] [- - - - bP - - - ] [ ] [- - - - wP - - bP] [ ] [- - - bP wQ - - wP] [ ] [- - - - - - - - ] [ ] [- - wR wN - - bN bP] [ ] [bK - - - - bB bB wR] -------------------------------------------------------- Solution: 1.Kb8 ..1.d3 2.Qa4 ------------------------- ..1.Be3 2.Qa8 ..1.Bf2 2.Qa8 ------------------------- ..1.Ba6 2.Qd4 ..1.Bb5 2.Qd4 ..1.Bc4 2.Qd4 ..1.Bd3 2.Qd4 ..1.Be2 2.Qd4 ------------------------- ..1.Ne3 2.Qd4 ------------------------- ..1.Ne1 2.Qe1 ..1.Nf4 2.Qe1 ..1.Nh4 2.Qe1 ------------------------- 22.839 [- - - - - - - - ] [ ] [- - - - - - wQ - ] [ ] [- - - - bP bP - - ] [ ] [- - - - - wN - - ] [ ] [- - - bP - bK bP - ] [ ] [- - - bP - - - - ] [ ] [- - - wN - - - wP] [ ] [- - - - - wK - - ] -------------------------------------------------------- Solution: 1.Ne3 ..1.f5 2.Ng2 ------------------------- ..1.Ke5 2.Qc7 ------------------------- ..1.e3 2.Qf6 ------------------------- ..1.g3 2.Qg3 ------------------------- ..1.Ke3 2.Qh6 ------------------------- ..1.e5 2.Qh6 ------------------------- 3.170 [bQ - - - - - wR - ] [ ] [- bN - - - - wB - ] [ ] [bR - - - - - - - ] [ ] [bR - - - - - - - ] [ ] [- - - wN - wN bK wP] [ ] [wQ - - - wR - wP - ] [ ] [- - - - - - - - ] [ ] [- - - - - - wK - ] -------------------------------------------------------- Solution: 1.Re5 ..1.Nd8 2.Bf6 ------------------------- ..1.Nd6 2.Bf8 ------------------------- ..1.Ra3 2.Rg5 ..1.Ra4 2.Rg5 ------------------------- ..1.Nc5 2.Rg5 ------------------------- ..1.Qa7 2.Qf3 ..1.Qb8 2.Qf3 ..1.Qc8 2.Qf3 ..1.Qd8 2.Qf3 ..1.Qe8 2.Qf3 ..1.Qf8 2.Qf3 ..1.Qg8 2.Qf3 ------------------------- ..1.Rb5 2.Qf3 ..1.Rc5 2.Qf3 ..1.Rd5 2.Qf3 ..1.Re5 2.Qf3 ------------------------- ..1.Ra7 2.Qf3 ..1.Rb6 2.Qf3 ..1.Rc6 2.Qf3 ..1.Rd6 2.Qf3 ..1.Re6 2.Qf3 ..1.Rf6 2.Qf3 ..1.Rg6 2.Qf3 ..1.Rh6 2.Qf3 ------------------------- 46.122 The whole thing took, 3444.561, CPU time