Author: Peter Schreiner
Date: 17:04:01 12/19/98
Hallo, Now we have these dark and cold days before christmas and there is also a lot of new chess software available.I collected here some interesting chess positions. If you have time or interest, please tell me the results of your chess software. By some positions you may think, that they are simple. But : I have seen, that it sometimes could happen, that top-programs didn`t recognize a mate in one move ....try it out ! Have fun -Peter ----------------------------------------------------------------- 6n1/prp2k2/1p6/1P2KN2/8/8/8/6R1 w - - id Rxg8 !; 1.Rxg8 Kxg8 2.Ne7+ Kf7 3.Nc6 1-0 ----------------------------------------------------------------- 8/8/1p2p3/1P6/5B2/1K6/2B2P2/k3q3 w - - id Bd6 !!!!; 1.Bd6 1-0 ----------------------------------------------------------------- r3kbnr/pp3ppp/1qn1p3/2PpPb2/8/4BN2/PPPNBPPP/R2QK2R b KQkq - id don`t take b2 !; 1.... Qxb2?? Dangerous ! Better 1..Bxc5 ------------------------------------------------------------------ kn6/b2N4/K7/8/8/8/7Q/8 w - - id mate in ?; 1.Qxb8+ mate in 2. Try this with Junior 5. 1 .Nxb8 Analyse the position with junior 5 after kb6/3N4/K7/8/8/8/8/8 w - - id mate in 1 !; Junior 5 means : draw !!!!!!! ---------------------------------------------------------------------- 2n5/kP6/8/K7/4B3/8/8/8 w - - id promot into a knight; 1.bxc8N+ 1:0 ------------------------------------------------------------- 8/8/8/8/3N4/p7/k1K5/8 w - - id mate in 3; 1.Ne2 ! -------------------------------------------------------------- k7/7p/8/2nKb3/8/8/8/8 w - - id kill the knight and it`s a draw; 1.Kxc5! the wrong bishop in the endgame ½-½ --------------------------------------------------------------- r4rk1/5p1p/p2RbnpQ/q1p1p2P/1pP1P3/1P3P2/P1N3P1/2K2B1R b - - id Nxh5 ? safty first; 1...Nxh5? [1...Rfe8! 2.hxg6 fxg6] 2.g4 Nf6 3.f4 Line --------------------------------------------------------------- 8/2k5/4p3/1nb2p2/2K5/8/6B1/8 w - - id kill the knight --> draw; 1.Kxb5 different colours of bishops in the endgame ½-½ -------------------------------------------------------------- 8/8/8/5bk1/8/8/4B1PP/5K2 b - - id Bh3 ! --> draw; ---------------------------------------------------------------------- 5k2/5p1p/2b1pPnP/1p1pP1R1/1PrP4/3Q4/r2B4/3RK3 w - - id 1.Rxg6 ! fxg6 2.Qxg6 !!!; ------------------------------------------------------------------------------ r1b1kb1r/ppqn1pp1/2p1pn1p/6N1/3P4/3B1N2/PPP1QPPP/R1B1K2R w KQkq - id Bg6 !; ------------------------------------------------------------------------------ 6k1/1p2q2p/5Qp1/3p2K1/3P1PP1/8/7P/8 b - - id 1...h6 ! transforming into a winning endgame position; ------------------------------------------------------------------------------ 1kbr3r/pp6/8/P1n2ppq/2N3n1/R3Q1P1/3B1P2/2R2BK1 w - - id mate in 11; 1.Qf4+ gxf4 2.Bxf4+ Ne5 3.Bxe5+ Rd6 4.Bxd6+ Ka8 5.Nb6+ axb6 6.axb6+ Na6 7.Rxc8+ Rxc8 8.Rxa6+ bxa6 9.Bg2+ Qf3 10.Bxf3+ Rc6 11.Bxc6# 1-0 ------------------------------------------------------------------------------- r3q1k1/1p1b2bp/r2p2p1/p1pPp1B1/PnP1P1P1/5RN1/1P1QB1P1/6KR w - - id 1.Nf5; 1.Nf5 gxf5 2.gxf5 Qf7 3.Rfh3 and now ???? Bxf5 4.Rf3 Qd7 5.exf5 Qf7 6.f6 Bf8 7.Rg3 Kh8 8.Bh5 Qd7 9.Bg6 Nxd5 1-0 --------------------------------------------------------------------------------- 7Q/kp3ppp/8/8/q3p3/P5PP/5b2/R1R3K1 w - - id 1.Kh1 !!!! wins 1.Kxf2; 1.Kh1!!! [1.Kxf2 Qb3 Dauerschach] 1-0 ----------------------------------------------------------------------------------- 8/5R2/2p5/8/7P/1K2b3/P3kp2/8 w - - id 1.Kc2!; 1.Kc2 otherwise the black bishop can stop both pawns or both sides will underpromote 1....c5 1-0 ------------------------------------------------------------------------------------- 8/7p/8/p4p2/5K2/Bpk3P1/4P2P/8 w - - id 1.g4 !!!!; 1.g4 !! [1.Kxf5? a4 2.e4 b2 3.Bxb2+ Kxb2 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q difficult to win] 1...fxg4 2.e4 b2 3.Bxb2+ Kxb2 4.e5 a4 5.e6 a3 6.e7 a2 7.e8Q a1Q 8.Qe5+ 1-0 ---------------------------------------------------------------------------------------- 3r1rk1/2p1qppp/p1n5/1p1bP1N1/3pNQ2/1P6/PP3PPP/2RR2K1 w - - id 1.Rc6! Bxc6 2.Nf6+; 1.Rxc6 Bxc6 2.Nf6+ also difficult to find for the most robots...gxf6 3.Nxh7 fxe5 4.Nf6+ Qxf6 5.Qxf6 1-0 ----------------------------------------------------------------------------------------- r1b1r2b/pppq1k2/2n1pP2/3pP1p1/3P4/2PB4/PP1QNP1P/R4RK1 w - - id 1.Bg6 + mate in 13; 1.Bg6+ Kxg6 2.Qd3+ Kh6 3.Qh3+ Kg6 4.Nf4+ gxf4 5.Kh1 Nxe5 6.dxe5 Qg7 7.Rg1+ Kf7 8.fxg7 Ke7 9.gxh8Q Kd7 10.Qxe8+ Kxe8 11.Rg7 c5 12.Qh5+ Kd8 13.Qh8# 1-0 ------------------------------------------------------------------------------------------ 7r/4p1k1/p3Pppp/1p6/3N1R2/3PQ2P/qr4b1/5RK1 w - - id 1.Rxf6 !!! mate in 13; 1.Rxf6 !! 1...exf6 2.Nf5+ ! 2...gxf5 3.Qa7+ Kg6 4.Qf7+ Kg5 5.Qg7+ Kh4 6.Qxf6+ Kg3 7.Qg6+ Kxh3 8.Qxf5+ Kg3 9.Qf4+ Kh3 10.Qh2+ Kg4 11.Rf4+ Kg5 12.Qg3+ Kh5 13.Qg4# 1-0 -------------------------------------------------------------------------------------------- 6r1/3q1npk/2b1pbnp/Rp1p4/1N1P3P/2PQ1pP1/1K3B2/5B1R w - - id 1.Qxg6 ! mate in ?; 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kf4 [4...Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rb1 Ra1 9.Kxa1 Qa7+ 10.Kb2 Qa1+ 11.Kxa1 Ra8+ 12.Na2 Rxa2+ 13.Kxa2 Bg5 14.Bh3+ Bc1 15.Rxc1#] 5.Bg3+ [5.Nc2 Matt in 3!] 5...Kg4 6.Be1+ Kh3 7.Bf1+ Kh2 8.Bg3+ Kxg1 9.Ra1 Ra8 10.Rc1 Ra1 11.Kxa1 Qa7+ 12.Kb2 Qa1+ 13.Kxa1 Ra8+ 14.Na2 Rxa2+ 15.Kxa2 Bg5 16.hxg5 f2 17.Bh3+ f1Q 18.Rxf1# 1-0 ---------------------------------------------------------------------------------------------- 8/5p1k/2pQ2p1/2P2q2/1P5p/5P1P/6PK/8 w - - id 1.b5 !; -------------------------------------------------------------------------------------------- 3R4/4r1kp/6p1/P4p2/5P2/6P1/6KP/8 w - - id 1.Rd2; 1.Rd2 Tarrasch says : rook behind the pawn .......Ra7 2.Ra2 1-0 --------------------------------------------------------------------------------------------- 1n5R/k1Kn4/1p6/1P6/8/8/8/8 w - - id 1.Re8!; 1.Re8! Bad is 1.Th1? Sc5 2.Ta1+ Sca6 3.bxa6 b5! draw [ also bad is 1.Rd8? Nc5! 2.Rxb8 Ne6+] 1...Nf6 2.Rxb8! Ne8+ 3.Kd7! Nc7 4.Ra8+! 1-0 ---------------------------------------------------------------------------------------------- 8/8/PK1n4/2N5/1k6/8/8/8 w - - id 1.Ne4!; 1.Ne4 Nc8+ 2.Kc7 1-0 ---------------------------------------------------------------------------------------------- 6k1/6p1/6Pp/ppp5/3pn2P/1P3K2/1PP5/3N4 b - - id 1....Nc3!; 1...Nc3 2.bxc3 a4 3.cxd4 cxd4 0-1 --------------------------------------------------------------------------------------------- rnb2bkr/ppp1pN1p/1nqpP1p1/8/8/5Q2/PPPP1PPP/RNB1K2R w KQ - id 1. Nh6 + mate in 12; Nh6 + mate in 12, ask your robot ...;-)))) --------------------------------------------------------------------------------------------- rnb2b1r/ppp1p1kp/1nqpP1pN/8/8/5Q2/PPPP1PPP/RNB1K2R w KQ - id 1.Qf7!; 1.Qf7 + now it`s mate in 11 .......... ------------------------------------------------------------------------------------------- rnb2b1r/ppp1pQ1p/1nqpP1pk/8/8/8/PPPP1PPP/RNB1K2R w KQ - id 1.d3 mate in 10; 1.d3 + mate in 10 .... ------------------------------------------------------------------------------------------ rnb2b1r/ppp1pQ1p/1nqpP1p1/7k/8/3P4/PPP2PPP/RNB1K2R w KQ - id 1.g4! mate in 9; 1.g4 + mate in 9 ..... and now ? -------------------------------------------------------------------------------------------
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