Author: Vincent Lejeune
Date: 17:30:22 01/06/06
Let your favorite engine for loooong time on each position If you find refutation(s) or have some comments, please post here ! 8/5p1p/8/6k1/8/6P1/5PP1/7K w - - The line is 1. Kh2 f6 2. Kh1! f5 3. Kg1 Kf6 4. Kf1 Ke5 5. Ke1 Kd5 6. Kd1 Ke5 7.Kc2! Kd4 8. Kd2 Ke4 9. Ke2 h6 10. Kf1! Ke5 11. Kg1 Kf6 12. Kh2 Kg6 13. Kh3, and now the win is not hard to find. see : http://members.aol.com/MuellerLamprecht/LoesungenBrainsoftheEarthengl.html 8/5k2/p7/2pP1Pp1/2P3P1/2N3K1/P4N2/5q2 b - - In this difficult ending taken from an actual game, the only move that wins is 1. ... Kf8 !!. The tempting move 1. ... Qxc4 only gives a draw after White answers 2. Nfe4. -> 1. ... Kf8 !! 2. d6 Qc4 3. Nfe4 Qf1 4. Nf2 Qc1 5. Nce4 Qe3 6. Kg2 c4 7. f6 Ke8 8. Ng3 c3 9. d7 Kd7 10. f7 Qe7 11. Nd3 c2 12. Nf5 Qf7 13. Ne5 Ke6 8/1p6/3k4/4n3/p2KP2p/P6N/1P6/8 b - - This endgame may seem simple, but it has some surprises. Here, the only move that wins is 1. ... b6!. If at once 1. ... b5 ?, Black cannot improve the position of his king. By playing the text, Black loses a move and forces White to play in the critical position. The Principal Variation as given in the book goes like this: 1. ... b6! 2. Nf4 b5 3. Nh3 (if 3. Kc3 then 3. ... Ng6! 4. Nh3 Kc5 wins) 3. ... Nc6+ 4. Ke3 Kc5 5. Kd3 b4 6. ab+ Kxb4 7. Kc2 Nd4+ 8. Kb1 (or 8. Kd3 Ne6 9. Kc2 Kc4 wins) 8. ... Ne6 9. Ka2 (if 9. Kc2 then 9. ... Kc4 wins) 9. ... Kc4 10. Ka3 Kd4 11. Kxa4 Kxe4 12. b4 Kf3 13. b5 Kg2 8/3R1P2/1ppP1p2/3r4/8/K7/p4k2/8 w - - 0 1 1. Kxa2 ? f5; 2. Ra7 Re5 ! 1. Kb2 !! a1=Q+; 2. Kxa1 Ra5+; 3. Kb2 Rb5+; 4. Kc3 Rc5+; 5. Kd4 f5; 6. Ra7 Rd5+;7. Kc3 Rc5+; 8. Kb2 Rb5+; 9. Ka1 Re5; 10 Ra2+ and wins 8/2k5/Kp3pp1/7p/P4P2/8/6PP/8 b - - 0 1 Azmaiparashvili played now Kc6? and lost the game. I belive that only move to draw is 46...h4! r4rk1/1b1n1pb1/3p2p1/1p1Pq1Bp/2p1P3/2P2RNP/1PBQ2P1/5R1K w - - Nf5 or Nxh5 r3n3/3b2kp/1qNp2p1/1p1Pp2n/1P2Pp2/3B1N1P/1Q3PP1/2R3K1 w - - Rc5 (but not sure) r1bq1rk1/1p3ppp/p1pp2n1/3N3Q/B1PPR2b/8/PP3PPP/R1B3K1 w - - Rxh4 (but not sure) 3rrk2/2p1n1bQ/1p3pp1/1q2B1N1/p1b1PP2/6PB/P1P5/3R1RK1 w - - Be6! mate 4k1rr/1R1R3p/8/8/8/2K5/7P/8 w k - 1.Rd2 (zugzwang) Rf8 2.Kc2 Rhg8 3.Kb2 h6 4.h3 h5 [ 4...Rh8 5.h4 Rhg8 6.h5] 5.h4 Rh8 6.Ra7 Rhg8 7.Ka2 +- 1q6/k7/3p2nP/pp1Qp3/1P2B3/P7/2P5/1K6 w - - h7! mate in 9 8/2B2pPb/7k/4K3/3p2P1/8/8/8 w - - g8N+ hard for some 2r1r3/p3bk1p/1pnqpppB/3n4/3P2Q1/PB3N2/1P3PPP/3RR1K1 w - - Rxe6(not sure, Qh3 may be as strong) r2qr1k1/pbp1bpp1/1p2p2p/3n4/3P1PN1/2PB3R/PP1BQ1PP/R5K1 w - - Nxh6! 2r3k1/2r1ppb1/3p2p1/pq4Pn/1p1BP3/1B3P2/PPPQ4/1K1R3R w - - Rxh5 (not sure yes) 8/8/p7/n1p5/PpPp4/1P1P4/2K1k1B1/8 b - - Nxb3 with >+2 r1q1rbk1/2pp1ppp/p1b5/1p1NP3/3Q4/3R2B1/PPP2PPP/5RK1 w - - Nf6+! 1r2kb1r/2qb1pp1/p7/3Q2Pn/8/4B2P/PPP3B1/R4RK1 w k - 0 1 Rad1! 3b4/3B4/4n3/5kp1/8/6P1/6K1/8 b - - 0 1 AM g4?? rn1qk2r/p2nbp2/1p2p1p1/2ppP1Np/3P1PP1/P1N1B2Q/1PP4P/R3KR2 w Qkq - Nxf7! 3r2k1/pp3ppp/5q2/8/1n2Q3/7P/PPP2PK1/R1B5 w - - 0 1 AM Qxb4?? 8/3k3p/1p4p1/p2p1p2/PP1K1P1P/2P3P1/8/8 b - - b5!! with >+2 or +3 for black 1r1rb1k1/5ppp/4p3/1p1p3P/1q2P2Q/pN3P2/PPP4P/1K1R2R1 w - - bm Rxg7+; id "Aemis Test Suite No.30"; c0 "Vescovi G.,2455 - Gschwendtner S.,2270, Groningen (open) 1994";1. Rxg7+ Kxg7 2. h6+ Kf8 3. Qf6 Bc6 4. c3 * 4q1kr/p6p/1prQPppB/4n3/4P3/2P5/PP2B2P/R5K1 w - - 1. Qxe5 fxe5 2. Rf1 * 8/6p1/P1b1pp2/2p1p3/1k4P1/3PP3/1PK5/5B2 w - - 0 1 bm Bg2; id Bishop Rivalry; 4B3/5K2/5P1b/2p5/2p5/1k6/8/8 w - - 0 1 bm Kg6; id Merry-go-round; 8/1p5k/4pP2/6B1/8/1P6/8/1n4K1 w - - 0 1 bm f7; id Good bishop vs Limited knight; 8/p1p2pp1/1pP3p1/3Pb2k/4P3/5P1P/8/3K2B1 w - - 0 1 bm f4; id The Winning Arrow; 8/6r1/Pp5p/7k/p7/7K/6P1/R7 w - - 0 1 bm Ra3; id The Rebel Rook; 1k3b1q/pP2p1p1/P1K1P1Pp/7P/2B5/8/8/8 w - - 0 1 bm Kd5; id Totally Paralysed; 1knB4/8/7p/5R2/7K/8/3r4/7B w - - 0 1 bm Rb5; id The Weekend Nicholas; 4kr2/5p1K/3p1Q2/1p4P1/4P3/1PP5/7b/8 w - - 0 1 bm Kh6; id The Giant King; 1. Kh6 Be5 2. Kg7!! Bh2 3. c4! bxc4 4. e5!! Bxe5 5. bxc4 Bxf6+ 6. gxf6 Rh8 7. Kxh8 Kd7 8. Kg8 Ke6 9. Kg7 3k4/2Rnn3/1p2pbp1/pP1p1pBp/P2P1P1P/4KPP1/4B3/8 w - - 0 2 Rxd7+ draw !? 8/1p6/p4p1p/2p1P2k/5P2/6pP/1P4P1/6K1 w - - 0 1 bm f5; id Rare Pawn ending; 1. f5 fxe5 2. h4 c4 3. Kf1 a5 4. Ke2 a4 5. Kf3 c3 6. Kxg3 cxb2 7. Kh3 b1=Q 8. g4+ r7/6k1/5R2/p3p3/Pp1pPp2/1PpP1Pp1/2P3P1/1K6 w - - 0 1 bm Rh6;stalemate threat 8/8/pp6/3b2K1/1P6/PN2k3/8/8 w - - id A-pawn and wrong bishop; bm Na5; k4B1b/p6P/Kp6/1P3P2/4P3/R2P4/2P2p2/6n1 w - - id The Arrow's Point; bm Ra1;1. Ra1! Bxa1 2. c3! Bxc3 3. d4! Bxd4 4. e5! Bxe5 5. f6! Bxf6 6. Bg7 Bxg7 7. h8=Q+ Bxh8 8/2b2k1K/1pPp1p2/1P1P1P2/5B2/8/8/8 w - - id The Pawnbishop; bm Be3; 8/5p2/6PR/7P/1k6/p7/7r/1K6 w - - id The Original Mozes; bm g7;
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