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Retro Problems published in 2003 - SOLUTIONS

971 - Valery Surkov

a) Black to move

1.Ng3xNf5!

(tries: 1.Q~xf4? 1.Nxf4#!; 1.B~xf3? 1.Qxf3#!; 1.N~xg2? 1.Bxg2#!; 1.Kg1-h1? 1.Qxh2#!; 1.Ng3xQf5? 1.Qh4#!)

b) White to move

1...Pg3xNh2! 2.Ng4xBh2!


972 - Ivan Denkovski & Gligor Denkovski

1.e3 a5 2.Bd3 Na6 3.Bg6 hxg6 4.h4 Rh5 5.Nh3 Rb5 6.h5 Rxb2 7.h6 Rxa2 8.hxg7 Ra4 9.Ba3 Rh4 10.Bxe7 Rh8 11.Bg5 Qf6 12.gxf8=R+ Ke7 13.Rxc8 Rxc8 14.OO Rf8 15.Kh2 Ke8 16.Kg3 Qd8 17.Ng1


1034 - Valery Kirillov

1.d4 Nc6 2.Qd3 Nxd4 3.Qxh7 Nxe2 4.Qxg7 Rxh2 5.Bf4 Rxg2 6.Bxc7 Qxc7 7.Bxg2 Qxc2 8.Bxb7 Qxb2 9.Bxc8 Qxa2 10.Bxd7+ Kxd7 11.Qxf7 Qxb1+ 12.Kxe2 Qxg1 13.Qxf8 Qxa1 14.Rxa1 Rxf8 15.Rxa7+ Kc8 16.Rxe7 Rxf2+ 17.Kxf2 Nxe7

Try: 1.e4 a6 2.Bxa6 d5 3.Bxb7 dxe4 4.Bxe4 Rxa2 5.Bxh7 Rxb2 6.Ra7 Rxh7 7.Rxc7 Rxh2 8.Rxc8 Rxg2 9.Rxb8 Rxg1+ 10.Rxg1 Rxb1 11.Rxg7 Rxc1 12.Rxf7 Rxc2 13.Qe2 Rxd2 14.Qxe7+ Bxe7 15.Rxd8+ Kxd8 16.Rxe7 Rxf2 17.Kxf2 Nxe7 but BK is on d8.

Hans Gruber reported that this problem has been anticipated by P. Raican, 3146. Phénix VII-VIII/1999, and cooked: 1.Nc3 c6 2.Nb5 Qc7 3.Nxa7 Qxh2 4.Nxc6 Rxa2 5.Nxb8 Rxa1 6.Nxd7 Rxc1 7.Nxf8 Qxg1 8.Rxh7 Rxc2 9.Rxg7 Rxd2 10.Rxf7 Rxb2 11.Qd8+ Kxd8 12.Rxe7 Qxg2 13.Bxg2 Nxe7 14.Bxb7 Rxe2+ 15.Kxe2 Rxf8 16.Bxc8 Rxf2+ 17.Kxf2 Kxc8


1035 - Ivan Denkovski

1.d4 h5 2.d5 h4 3.d6 h3 4.dxc7 hxg2 5.cxd8=B Rh3 6.Ba5 Rg3 7.h4 b5 8.h5 b4 9.h6 b3 10.Rh5 bxa2 11.Nh3 g1=Q 12.fxg3 Qb6 13.h7 Qd8 14.Bb6 a5 15.h8=N a4 16.Ra5 axb1=R 17.Qd5 Rxc1+


1089 - Gligor Denkovski

1.e3 d5 2.Ne2 d4 3.Nec3 dxc3 4.Ke2 cxd2 5.Qe1 d1=R 6.c4 Rd6 7.c5 Rb6 8.cxb6 Kd7 9.Kd1 Qe8 10.Bd3 Kd8


1185 - Dmitrij Baibikov

Retroplay: 1...Qc7xBb7# 2.Bh5-g6 Bg6-h7 3.Bg4-h5 and further 3... Bh5-g6 4-6.Bh1->g4 Bf1->h5 7.Bg2-h1 Bh7-g8 8.Bh3-g2 Bg2-f1 9.Bg4-h3 Bh1-g2 10.Bh3-g4 h2-h1=B 11.Bf1-h3 h3-h2 12.Bg2-f1 h4-h3 13-17.Bh1->g2 Bf1->h7 18.Bg2-h1 h5-h4 19.Bh3-g2 h6-h5 20-24.Bg8->h3 Bg2->f1 25.g7-g8=B h7-h6! 26.g6-g7 Bf1-g2 27.g5-g6 g6xNf5 28.Nh6-f5 Bg2-f1 29.Ng8-h6 Bf1-g2 30.g7-g8=N Bg2-f1 31.h6xNg7 Nf5-g7 32.f2-f3 Ne3-f5 33.g4-g5 Nc2-e3 34.g3-g4 Na1-c2 35.h5-h6 a2-a1=N 36.h4-h5 a3-a2 37.h3-h4 a4-a3 38.h2-h3 a5-a4 39.a4xNb5 Nc3-b5+ 40.a2(3)-a4 etc. So the first move of the bPh7 was h7-h6.

All captures: d5xNe6 and after that c5xBd6, c7xQd6, a4xNb5, h6xNg7, g6xNf5, Qc7xBb7


1186 - Gligor Denkovski

1.d3 e6 2.Qd2 Qe7 3.Qb4 Kd8 4.Kd2 Qe8 5.Qxf8 Ne7 6.Qxh8 Nec6 7.Qf8 Na5 8.Qd6 Qe7 9.Kc3 Ke8 10.Kb4 Qd8


1187 - Gianni Donati

1.Nf3 Nf6 2.Ne5 Ne4 3.Nxd7 Kxd7 4.h4 Kc6 5.Rh3 Bf5 6.Ra3 e6 7.Rxa7 Qg5 8.Ra3 Rxa3 9.h5 Rh3 10.g3 Ba3 11.Bg2 Rd8 12.Bf3 Rd3 13.Bg4 Rdxg3 14.d4 Kd5 15.Qd3 Nd2 16.Qa6 Bd3 17.e3 Ke4 18.Bd1 Qa5 19.Be2 f5 20.Bf1 Nf3++

Cook: 12.Bf1 ... 13.Nc3 ... 14.d4 Nd2 15.Nb1 Bd3 16.e3 Qa5 17.Qg4 f5 18.Qf4 Kd5 19.Qd6+ Ke4 20.Qa6 ...


1187c - Gianni Donati

1.Nf3 Nf6 2.Ne5 Ne4 3.Nxd7 Kxd7 4.h4 Kc6 5.Rh3 Bf5 6.Ra3 e6 7.Rxa7 Qg5 8.Ra3 Rxa3 9.h5 Rh3 10.g3 Ba3 11.Bg2 Rd8 12.Bf3 Rd3 13.Bg4 Rdxg3 14.d4 Kd5 15.Qd3 Nd2 16.Qa6 Bd3 17.e4+ Kxe4 18.Bd1 Qa5 19.Be2 f5 20.Bf1 Nf3++


1188 - Rustam Ubaidullaev

1.c3 h5 2.Qa4 Nh6 3.Qc6 bxc6 4.a4 Ba6 5.Ra3 Bb5 6.Rb3 Bxa4 7.Rb6 axb6 8.f4 Ra5 9.f5 Na6 10.f6 Rg5 11.fxg7 f5 12.g8=R Kf7 13.Rg7+ Ke6 14.Rg6+ Kd5 15.Rg8 Kc4 16.Na3+ Kb3 17.c4 Ka2 18.b3 Rgxg8 19.Bb2 Bg7 20.Bf6 Re8 21.Bh4 Ba1