Author: Drexel,Michael
Date: 23:04:17 04/23/04
Go up one level in this thread
On April 23, 2004 at 14:17:07, Dann Corbit wrote: >On April 23, 2004 at 03:01:16, Drexel,Michael wrote: > >>On April 23, 2004 at 02:14:37, Dann Corbit wrote: >> >>>On April 23, 2004 at 01:50:34, Afzal Siddique wrote: >>> >>>>Hello ALL >>>> >>>>[D]rnbqk2r/pppp1ppp/8/2bN4/4P1n1/1P1Q1N2/P1P2PPP/R1B1KB1R b KQkq - 0 7 >>>> >>>>the thing here is to avoid Bxf2+ and Nxf2.. c6 here is the best move but when i >>>>analysed using Ruffian this is what i got >>>> >>>>Ruffian 1.0.5 UCI 15 MB: >>>> 1 00:00 1.17 Ng4xf2 >>>> 1 00:00 1.19 Bc5xf2+ Ke1d1 >>>> 2 00:00 2.68 Bc5xf2+ Ke1d1 00 >>>> 3 00:00 1.68 Bc5xf2+ Ke1d2 00 Kd2c3 >>>> 3 00:00 1.94 Ng4xf2 Qd3c3 Nf2xh1 Qc3xc5 >>>> 4 00:00 1.94 Ng4xf2 Qd3c3 Nf2xh1 Qc3xc5 >>>> 5 00:00 2.14 Ng4xf2 Qd3c3 Nf2xh1 Qc3xc5 Nb8c6 >>>> 6 00:00 1.90 Ng4xf2 Qd3c3 Nf2xh1 Qc3xc5 Nb8c6 Bc1f4 >>>> 7 00:00 1.34 Ng4xf2 Qd3c3 00 Bc1b2 f7f6 Qc3xc5 Nf2xh1 Qc5xc7 >>>> 8 00:02 1.34 Ng4xf2 Qd3c3 00 Bc1b2 f7f6 Qc3xc5 Nf2xh1 Qc5xc7 >>>> 9- 00:04 0.99 Ng4xf2 >>>> 9 00:05 -0.41 Ng4xf2 Qd3c3 00 Qc3xc5 Nf2xh1 Nd5xc7 b7b6 Qc5c3 Bc8b7 Nc7xa8 >>>>Bb7xa8 >>>> 9 00:08 0.59 Bc5xf2+ Ke1e2 Bf2b6 Nd5xb6 a7xb6 h2h3 Qd8f6 c2c3 Ng4e5 Nf3xe5 >>>>Qf6xe5 Ke2e1 >>>>10 00:27 0.59 Bc5xf2+ Ke1e2 Bf2b6 Nd5xb6 a7xb6 h2h3 Qd8f6 c2c3 Ng4e5 Nf3xe5 >>>>Qf6xe5 Ke2e1 >>>>11 01:16 0.40 Bc5xf2+ Ke1e2 Bf2b6 h2h3 Ng4f6 Nd5xb6 a7xb6 e4e5 Nf6g8 Bc1f4 >>>>Nb8c6 Qd3d5 Ke8f8 >>>>11 01:43 0.41 00 Bc1g5 Bc5xf2+ Ke1e2 f7f6 Bg5f4 Nb8c6 Nd5xc7 Ra8b8 h2h3 >>>>Bf2b6 Qd3d5+ Kg8h8 h3xg4 Bb6xc7 >>>>12 03:22 0.37 00 Bc1g5 Bc5xf2+ Ke1e2 f7f6 Bg5f4 Nb8c6 Nd5xc7 Ra8b8 h2h3 >>>>Ng4e5 Qd3d5+ Kg8h8 Ke2xf2 Qd8xc7 >>>>13 08:57 0.24 00 Bc1g5 Bc5xf2+ Ke1e2 f7f6 Bg5f4 f6f5 Nd5xc7 f5xe4 Qd3xe4 >>>>d7d5 Qe4xd5+ Qd8xd5 Nc7xd5 Rf8e8+ Ke2d1 Nb8c6 >>>> >>>> >>>> >>>>what is 00 Bc1g5?? >>> >>>Black castles and then white moves the bishop to g5. >>> >>>So far, Shredder likes the idea to castle better too. >>> >>>Why do you suppose that c6 is best? >> >>This position is from a "Computer Killer" variation I have already posted here >>last year: >> >>http://chessprogramming.org/cccsearch/ccc.php?art_id=275948 >> >>IIRC the refutation was 1.b3 e5 2.e4 Nc6 3.Bb2 Nf6 4.Nc3 Bc5 5.Nf3 Ng4 6.d4 exd4 >>7.Nd5 c6! Actually I meant 1.b3 e5 2.e4 Nf6 3.Nc3 Bc5 4.Nf3 Ng4 5.d4 exd4 6.Nd5 c6! of course. In that line 6...c6 is the best move. c6 is not possible in the line above. >> >>and not 7.Nd5 d3 8.Qxd3 c6 > >I do not think that d3 is the mistake. > >Here is the game: > >[Event "?"] >[Site "?"] >[Date "????.??.??"] >[Round "?"] >[White "?"] >[Black "?"] >[Result "1-0"] >[ECO "A01"] >[Variation "Nimzowitsch-Larsen: 1...e5"] >[white "killer gambit (2623)"] >[black "Ruffi (2331)"] > >1. b3 e5 2. e4 Nc6 3. Bb2 Nf6 4. Nc3 Bc5 5. Nf3 Ng4 6. d4 exd4 7. Nd5 d3 8. Qxd3 >Nxf2 9. Qc3 Nxh1 10. Qxg7 Rf8 11. Nf6+ Ke7 12. Nd5+ Ke8 13. Bf6 Ne7 14. Ng5 Nxd5 >15. Bxd8 Bb4+ 16. Kd1 Bc3 17. e5 Ne3+ 18. Kc1 Nf5 19. Qf6 d5 20. Bxc7 Bd7 21. >Bd6 Nxd6 22. Qxd6 Rh8 23. Qxd5 Rf8 24. Nxh7 Rh8 25. Nf6+ Kf8 26. Nxd7+ 1-0 > >rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - acd 1; acn 20; acs 1; pm >b3; ce 0; pv c4 e5; c0 "book move -- no analysis"; >rnbqkbnr/pppppppp/8/8/8/1P6/P1PPPPPP/RNBQKBNR b KQkq - acd 1; acn 20; acs 1; pm >e5; ce 0; pv e5 Bb2; c0 "book move -- no analysis"; >rnbqkbnr/pppp1ppp/8/4p3/8/1P6/P1PPPPPP/RNBQKBNR w KQkq - acd 1; acn 29; acs 1; >pm e4; ce 0; pv Bb2 Nc6; c0 "book move -- no analysis"; >rnbqkbnr/pppp1ppp/8/4p3/4P3/1P6/P1PP1PPP/RNBQKBNR b KQkq - acd 15; acn >1180851076; acs 999; pm Nc6; ce 33; pv Nf6 Nc3 Bc5 Nf3 O-O Be2 d5 exd5 Nxd5 O-O >Nc6 Ne4 Bb4 d4 Bf5; >r1bqkbnr/pppp1ppp/2n5/4p3/4P3/1P6/P1PP1PPP/RNBQKBNR w KQkq - acd 15; acn >1175498565; acs 1000; pm Bb2; ce -23; pv Nf3 Nf6 Nc3 Bc5 Be2 O-O O-O d5 exd5 >Nxd5 Nxd5 Qxd5 Bc4 Qd6 d3 Qf6 Qe2; >r1bqkbnr/pppp1ppp/2n5/4p3/4P3/1P6/PBPP1PPP/RN1QKBNR b KQkq - acd 15; acn >1201768447; acs 999; bm Nf6; ce 19; pv Nf6 Nf3 Bc5 Bd3 O-O O-O d6 Nc3 Nd4 Na4 >Nxf3+ Qxf3 Bb4 c3 Bg4 Qg3 Ba5; >r1bqkb1r/pppp1ppp/2n2n2/4p3/4P3/1P6/PBPP1PPP/RN1QKBNR w KQkq - acd 15; acn >1188569245; acs 1000; pm Nc3; ce -42; pv Nf3 Nxe4 Bb5 f6 O-O Nd6 Bxc6 dxc6 d4 e4 >Re1; >r1bqkb1r/pppp1ppp/2n2n2/4p3/4P3/1PN5/PBPP1PPP/R2QKBNR b KQkq - acd 15; acn >1184293435; acs 1000; pm Bc5; ce 37; pv Be7 Nf3 O-O Bd3 d5 exd5 Nxd5 Nxd5 Qxd5 >Qe2 Bg4 Qe4 Qxe4+ Bxe4 f6 Bd5+ Kh8 Bxc6 bxc6 O-O; >r1bqk2r/pppp1ppp/2n2n2/2b1p3/4P3/1PN5/PBPP1PPP/R2QKBNR w KQkq - acd 16; acn >1214429669; acs 999; pm Nf3; ce -44; pv Be2 O-O Nf3 d6 O-O Bd7 d3 Nd4 Nxd4 Bxd4 >Qd2 Qe7 a3 Rad8 Qg5 Nd5; >r1bqk2r/pppp1ppp/2n2n2/2b1p3/4P3/1PN2N2/PBPP1PPP/R2QKB1R b KQkq - acd 15; acn >1282912202; acs 1000; bm Ng4; ce 69; pv Ng4 d4 exd4 Nd5 d6 Nxd4 O-O Be2 Re8 f3 >Nxd4 Bxd4 Bxd4 Qxd4 c5 Qc4 Qh4+ Kd2 Nxh2; >r1bqk2r/pppp1ppp/2n5/2b1p3/4P1n1/1PN2N2/PBPP1PPP/R2QKB1R w KQkq - acd 16; acn >1247746570; acs 999; bm d4; ce -84; pv d4 exd4 Nd5 O-O Bd3 d6 O-O a5 Bb5 Na7 Be2 >c6 Nxd4 cxd5 Bxg4 dxe4; >r1bqk2r/pppp1ppp/2n5/2b1p3/3PP1n1/1PN2N2/PBP2PPP/R2QKB1R b KQkq - acd 15; acn >1306300654; acs 1000; bm exd4; ce 67; pv exd4 Nd5 O-O Nxd4 d6 h3 Nge5 c3 Ne7 Ne3 >Re8 b4 Bb6 Nc4 Bd7 Nxb6 axb6; >r1bqk2r/pppp1ppp/2n5/2b5/3pP1n1/1PN2N2/PBP2PPP/R2QKB1R w KQkq - acd 14; acn >1264609101; acs 1000; bm Nd5; ce -101; pv Nd5 O-O Bc4 Re8 O-O d6 b4 Nxb4 Nxb4 >Bxb4 Qxd4 Qf6 Qxf6 Nxf6 Bxf6 gxf6 Rab1; > >[D]r1bqk2r/pppp1ppp/2n5/2bN4/3pP1n1/1P3N2/PBP2PPP/R2QKB1R b KQkq - acd 14; acn >1256768373; acs 999; pm d3; ce 52; pv O-O Nxd4 d6 Be2 Re8 f3 Nxd4 Bxd4 c6 fxg4 >cxd5 Bxc5 dxc5 Qxd5 Qh4+ g3 Qe7; c0 "the move in question (is d3 or O-O or c6 >best? Yes, probably c6 but d3 is not fatal."; > >r1bqk2r/pppp1ppp/2n5/2bN4/4P1n1/1P1p1N2/PBP2PPP/R2QKB1R w KQkq - acd 14; acn >1315977277; acs 1000; bm Qxd3; ce -33; pv Qxd3 Bxf2+ Ke2 Bb6 Bxg7 Rg8 Bc3 d6 h3 >Nf2 Nf6+ Ke7 Nd5+ Kf8 Bf6 Nxd3 Bxd8; > >Here is one big foul-up: >[D]r1bqk2r/pppp1ppp/2n5/2bN4/4P1n1/1P1Q1N2/PBP2PPP/R3KB1R b KQkq - acd 15; acn >1308539578; acs 1000; am Nxf2; ce -3; pv f6 Nd4 O-O Qc4 Bxd4 Bxd4 b5 Ne7+ Kh8 >Nxc6 dxc6 Qc5 Rf7 O-O-O Rd7 Be2 Rd6; c0 "Nxf2 loses the game (and f6 is dead >even)."; I wouldn't call it dead even but it's the best move of course. > >r1bqk2r/pppp1ppp/2n5/2bN4/4P3/1P1Q1N2/PBP2nPP/R3KB1R w KQkq - acd 16; acn >1509708038; acs 999; bm Qc3; ce 54; pv Qc3 f6 Qxc5 Nxh1 Qg1 d6 Qxh1 O-O Bc4 Kh8 >Qf1 Re8 Bd3; >r1bqk2r/pppp1ppp/2n5/2bN4/4P3/1PQ2N2/PBP2nPP/R3KB1R b KQkq - acd 16; acn >1535816051; acs 1000; pm Nxh1; ce -163; pv f6 Qxc5 Nxh1 Nxf6+ gxf6 Qh5+ Ke7 >Bxf6+ Kxf6 Qh6+ Kf7 Ng5+ Qxg5 Qxg5 Rf8 Be2 b6 O-O-O Nf2 Rf1; >r1bqk2r/pppp1ppp/2n5/2bN4/4P3/1PQ2N2/PBP3PP/R3KB1n w Qkq - acd 15; acn >1496387026; acs 999; bm Qxg7; ce 123; pv Qxg7 Rf8 Nf6+ Ke7 Nd5+ Ke8 Bf6 Ne7 Bxe7 >Bxe7 Qe5 f6 Nxc7+ Kf7 Qh5+ Kg7 Qg4+ Kh8 Nxa8 Qe8; >r1bqk2r/pppp1pQp/2n5/2bN4/4P3/1P3N2/PBP3PP/R3KB1n b Qkq - acd 14; acn >1545637927; acs 1000; bm Rf8; ce -185; pv Rf8 Nf6+ Ke7 Nd5+ Ke8 Bf6 Ne7 Bxe7 >Bxe7 Qe5 Rg8 Nxc7+ Kf8 Nxa8 d6 Qd4 Rg4; >r1bqkr2/pppp1pQp/2n5/2bN4/4P3/1P3N2/PBP3PP/R3KB1n w Qq - acd 13; acn 1502392297; >acs 999; bm Nf6+; ce 207; pv Nf6+ Ke7 Bc4 b5 Nxh7 Ke8 Bf6 Be7 Nxf8 bxc4 Ne6 dxe6 >Qg8+ Bf8 Bxd8 Nxd8; >r1bqkr2/pppp1pQp/2n2N2/2b5/4P3/1P3N2/PBP3PP/R3KB1n b Qq - acd 14; acn >1530598851; acs 1000; bm Ke7; ce -267; pv Ke7 O-O-O Nf2 Nh4 d5 Rxd5 Nxe4 Rxd8 >Rxd8 Nxe4 Be3+ Nd2 Bxd2+ Kb1 h6; > >A less than optimal choice by white here could have let black back into the >game: I think it really doesn't matter. 12.Nd5+ Ke8 13.Bf6 Ne7 14.Bg5 also wins. Michael >[D]r1bq1r2/ppppkpQp/2n2N2/2b5/4P3/1P3N2/PBP3PP/R3KB1n w Q - acd 13; acn >1537831016; acs 1000; am Nd5+; ce 251; pv Nxh7 Bb4+ Nd2 Ke8 Nf6+ Ke7 Nd5+ Ke8 >Bf6 Ne7 Bxe7 Bxe7 Qe5 Rg8 Nxc7+ Kf8 Nxa8 Qe8; > >r1bq1r2/ppppkpQp/2n5/2bN4/4P3/1P3N2/PBP3PP/R3KB1n b Q - acd 14; acn 1509932752; >acs 999; bm Ke8; ce -136; pv Ke8 Nf6+ Ke7 Bc4 b5 Nxh7 Ke8 Bf6 Be7 Bxb5 Bb7 Ke2 >a6 Bxc6 Bxc6 Rxh1; >r1bqkr2/pppp1pQp/2n5/2bN4/4P3/1P3N2/PBP3PP/R3KB1n w Q - acd 13; acn 1522528645; >acs 1000; pm Bf6; ce 167; pv Nf6+ Ke7 Bc4 b5 Nxh7 Ke8 Bf6 Be7 Nxf8 bxc4 Ne6 dxe6 >Qg8+ Bf8 Bxd8 Nxd8; >r1bqkr2/pppp1pQp/2n2B2/2bN4/4P3/1P3N2/P1P3PP/R3KB1n b Q - acd 15; acn >1432507756; acs 999; bm Ne7; ce -182; pv Ne7 Bg5 Nxd5 Bxd8 Bb4+ Nd2 Bc3 Qg5 Bxa1 >exd5 f6 Qh6 Be5 Ne4 f5 Nf6+ Kxd8 Qxf8#; >r1bqkr2/ppppnpQp/5B2/2bN4/4P3/1P3N2/P1P3PP/R3KB1n w Q - acd 15; acn 1502294039; >acs 1000; bm Ng5; ce 272; pv Ng5 Nxd5 exd5 Bb4+ c3 Bxc3+ Bxc3 Qe7+ Kd2 f6 Re1 >Qxe1+ Kxe1 fxg5 Bb4 Rxf1+ Kxf1 d6 Qxc7 Bf5 Bxd6; >r1bqkr2/ppppnpQp/5B2/2bN2N1/4P3/1P6/P1P3PP/R3KB1n b Q - acd 14; acn 1451726824; >acs 999; bm Nxd5; ce -358; pv Nxd5 exd5 Bb4+ c3 Bxc3+ Bxc3 Qe7+ Kd2 f6 Re1 Qxe1+ >Kxe1 fxg5 Bb4 Rxf1+ Kxf1 d6 Kg1 a5 Bc3 Ng3 hxg3; > >Another less optimal move: >[D]r1bqkr2/pppp1pQp/5B2/2bn2N1/4P3/1P6/P1P3PP/R3KB1n w Q - acd 15; acn >1466197774; acs 1000; am Bxd8; ce 388; pv exd5 Bb4+ c3 Bxc3+ Bxc3 Qe7+ Kd2 f6 >Re1 Qxe1+ Kxe1 fxg5 Be2 g4 Bxg4 Ng3 Qe5+ Kd8 Qg5+ Ke8 Qe3+ Kd8 Qxg3; c0 "Bxd8 is >really bad (exd5 is dominatingly better)."; > >r1bBkr2/pppp1pQp/8/2bn2N1/4P3/1P6/P1P3PP/R3KB1n b Q - acd 16; acn 1434775088; >acs 999; bm Bb4+; ce -180; pv Bb4+ Ke2 Bc3 Qh6 Nf4+ Ke3 Ng6 Rd1 Kxd8 Bc4 Be5 >Rxh1 Bf4+ Kf2 f6 Qxh7 fxg5 Qxg6; > >White keeps trying to let black off the hook: >[D]r1bBkr2/pppp1pQp/8/3n2N1/1b2P3/1P6/P1P3PP/R3KB1n w Q - acd 17; acn >1428917865; acs 1000; am Kd1; ce 138; pv Ke2 Bc3 e5 Bxa1 Kf3 c6 Ba5 Bd4 c4 Nf4 >Ne4 d5 Nd6+ Ke7 Qf6+ Kd7 Qxf4 Bb6 Bxb6 axb6 cxd5 Rxa2; > >But black fails to take advantage: >[D]r1bBkr2/pppp1pQp/8/3n2N1/1b2P3/1P6/P1P3PP/R2K1B1n b - - acd 16; acn >1468110939; acs 999; am Bc3; ce -172; pv Nf2+ Kc1 Ba3+ Kb1 Nxe4 Nxe4 Kxd8 c4 f5 >c5 Re8 Nf6 Nxf6 Qxf6+ Re7 Kc2 d5 cxd6 Bxd6 Rd1; c0 "Bc3 is a disaster."; > >r1bBkr2/pppp1pQp/8/3n2N1/4P3/1Pb5/P1P3PP/R2K1B1n w - - acd 16; acn 1452375004; >acs 1000; bm e5; ce 337; pv e5 Nf2+ Kc1 Bb4 Bc4 Kxd8 Bxd5 c6 a3 Bc5 b4 Be3+ Kb1 >Re8 Bxf7 h6 Bxe8 hxg5; > >It's all over now. >r1bBkr2/pppp1pQp/8/3nP1N1/8/1Pb5/P1P3PP/R2K1B1n b - - acd 15; acn 1404818314; >acs 999; pm Ne3+; ce -387; pv Nf2+ Kc1 Bb4 a3 Bc5 b4 Be3+ Kb1 Nd1 c4 N5c3+ Kc2 >d5 Rxd1 Nxd1 Nxh7 Bf5+ Kxd1 Bxh7 Bxc7; >r1bBkr2/pppp1pQp/8/4P1N1/8/1Pb1n3/P1P3PP/R2K1B1n w - - acd 15; acn 1378148479; >acs 1000; bm Kc1; ce 452; pv Kc1 Nf5 Qf6 d5 Bxc7 Bd7 Bd6 Nxd6 Qxd6 Rh8 Qf6 Rf8 >Nxh7 Ng3 Nxf8 Kxf8; >r1bBkr2/pppp1pQp/8/4P1N1/8/1Pb1n3/P1P3PP/R1K2B1n b - - acd 15; acn 1361860413; >acs 1000; bm Nf5; ce -643; pv Nf5 Qf6 d5 Bxc7 Bd7 Bd6 Nxd6 Qxd6 Rh8 Qxd5 h6 >Qxf7+ Kd8 Bb5 Kc7 Qxd7+ Kb6 Bc6 bxc6;
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