Author: Uri Blass
Date: 02:02:33 09/24/01
Go up one level in this thread
On September 24, 2001 at 04:29:37, Michel Langeveld wrote: >On September 24, 2001 at 03:21:48, Slater Wold wrote: > >>PFGA: EPD record: 1 ID: ECM.1204 >>middle-game phase >> clearing hash tables >> time surplus 0.00 time limit 15:00 (15:00) >> nss depth time score variation (1) >>starting thread 1 >> (2) 7-> 0.21 -0.01 1. Nf3 Na5 2. Bd3 c4 3. Be4 b5 4. Ra1 >> 8 0.25 0.04 1. Nf3 Na5 2. Bd3 c4 3. Be4 b5 4. Bxb7 >> Qxb7 5. Ra1 >> (3) 8-> 0.46 0.04 1. Nf3 Na5 2. Bd3 c4 3. Be4 b5 4. Bxb7 >> Qxb7 5. Ra1 >> (2) 9 0.67 -0.06 1. Nf3 Na5 2. Bd3 b5 3. axb5 c4 4. >> Be4 Bxe4 5. Qxe4 axb5 >> (3) 9-> 1.35 -0.06 1. Nf3 Na5 2. Bd3 b5 3. axb5 c4 4. >> Be4 Bxe4 5. Qxe4 axb5 >> (2) 10 2.13 -0.09 1. Nf3 g5 2. Bg3 h5 3. h4 g4 4. Ng5 >> Na5 5. Bf4 Nxc4 6. Qxc4 >> (3) 10-> 3.94 -0.09 1. Nf3 g5 2. Bg3 h5 3. h4 g4 4. Ng5 >> Na5 5. Bf4 Nxc4 6. Qxc4 >> (2) 11 4.94 0.00 1. Nf3 g5 2. Bg3 Na5 3. Bd3 Qc6 4. >> b3 c4 5. Bxc4 g4 6. Ne1 Nxc4 7. bxc4 >> (3) 11-> 7.85 0.00 1. Nf3 g5 2. Bg3 Na5 3. Bd3 Qc6 4. >> b3 c4 5. Bxc4 g4 6. Ne1 Nxc4 7. bxc4 >> (2) 12 10.27 -0.17 1. Nf3 g5 2. Bg3 Na5 3. Bd3 h5 4. h4 >> g4 5. Ne1 c4 6. Be4 Bxe4 7. Qxe4 >> (4) 12-> 19.17 -0.17 1. Nf3 g5 2. Bg3 Na5 3. Bd3 h5 4. h4 >> g4 5. Ne1 c4 6. Be4 Bxe4 7. Qxe4 >> (3) 13 27.11 -0.16 1. Nf3 g5 2. Bg3 h5 3. Bd3 c4 4. Nxg5 >> Bxg5 5. Qxh5 cxd3 6. Qxg5+ Kh7 7. Qh5+ >> Kg7 8. Rxd3 >> 13 2:07 0.14 1. Nxf7 Kxf7 2. Rxd7 Rxd7 3. Bxe6+ >> Kxe6 4. Qc4+ Kf5 5. Qf7+ Bf6 6. Rxd7 >> Nxe5 7. Qh5+ Kxf4 8. Rxc7 Bc6 9. g3+ >> Ke4 10. Qe2+ Kf5 11. f4 >> (3) 13-> 2:14 0.14 1. Nxf7 Kxf7 2. Rxd7 Rxd7 3. Bxe6+ >> Kxe6 4. Qc4+ Kf5 5. Qf7+ Bf6 6. Rxd7 >> Nxe5 7. Qh5+ Kxf4 8. Rxc7 Bc6 9. g3+ >> Ke4 10. Qe2+ Kf5 11. f4 >> (2) 14 2:26 0.13 1. Nxf7 Kxf7 2. Rxd7 Rxd7 3. Bxe6+ >> Kxe6 4. Qc4+ Kf5 5. Qf7+ Bf6 6. Rxd7 >> Nxe5 7. Qh5+ Kxf4 8. Rxc7 Bd5 9. a5 >> bxa5 10. g3+ Ke4 11. Qe2+ Kf5 12. Rxc5 >> (2) 14-> 3:11 0.13 1. Nxf7 Kxf7 2. Rxd7 Rxd7 3. Bxe6+ >> Kxe6 4. Qc4+ Kf5 5. Qf7+ Bf6 6. Rxd7 >> Nxe5 7. Qh5+ Kxf4 8. Rxc7 Bd5 9. a5 >> bxa5 10. g3+ Ke4 11. Qe2+ Kf5 12. Rxc5 >> 15 5:39 0.13 1. Nxf7 Kxf7 2. Rxd7 Rxd7 3. Bxe6+ >> Kxe6 4. Qc4+ Kf5 5. Qf7+ Bf6 6. Rxd7 >> Nxe5 7. Qh5+ Kxf4 8. Rxc7 Bd5 9. a5 >> bxa5 10. g3+ Ke4 11. Qe2+ Kf5 12. Rxc5 >> 15-> 7:42 0.13 1. Nxf7 Kxf7 2. Rxd7 Rxd7 3. Bxe6+ >> Kxe6 4. Qc4+ Kf5 5. Qf7+ Bf6 6. Rxd7 >> Nxe5 7. Qh5+ Kxf4 8. Rxc7 Bd5 9. a5 >> bxa5 10. g3+ Ke4 11. Qe2+ Kf5 12. Rxc5 >> 16 9:54 0.30 1. Nxf7 Kxf7 2. Rxd7 Rxd7 3. Bxe6+ >> Kxe6 4. Qc4+ Kf5 5. Qf7+ Bf6 6. Rxd7 >> Nxe5 7. Qh5+ Kxf4 8. Rxc7 Rb8 9. g3+ >> Ke4 10. Qe2+ Kf5 11. f4 Nf3+ 12. Kf2 >> Be4 13. Qxa6 >> 16-> 12:32 0.30 1. Nxf7 Kxf7 2. Rxd7 Rxd7 3. Bxe6+ >> Kxe6 4. Qc4+ Kf5 5. Qf7+ Bf6 6. Rxd7 >> Nxe5 7. Qh5+ Kxf4 8. Rxc7 Rb8 9. g3+ >> Ke4 10. Qe2+ Kf5 11. f4 Nf3+ 12. Kf2 >> Be4 13. Qxa6 >> 17 14:00 ++ 1. Nxf7!! >> time=15:01 cpu=202% mat=0 n=1187459925 fh=94% nps=1317k >> ext-> chk=69239298 cap=3375706 pp=4124510 1rep=6646843 mate=607877 >> >> predicted=0 nodes=1187459925 evals=222301574 >> endgame tablebase-> probes done=0 successful=0 >> hashing-> trans/ref=29% pawn=99% used=-70% >> SMP-> split=2869 stop=423 data=11/32 cpu=30:26 elap=15:01 >>White(1): >> >> >>Slate > >What will the score be of Nxf7? >Can you finish the search.... Here is Deep Fritz's opinion New position r2r2k1/1bqpbpp1/ppn1p2p/2p1P1N1/P1B2B2/2P5/1PPRQPPP/3R2K1 w - - 0 1 Analysis by Deep Fritz: 1.Nxf7-- µ (-0.87) Depth: 1/3 00:00:00 1.Nxf7-- Kxf7 µ (-1.31) Depth: 1/3 00:00:00 1.Ne4! ³ (-0.34) Depth: 1/8 00:00:00 1.Nf3! = (-0.06) Depth: 1/13 00:00:00 1.Nf3! ² (0.47) Depth: 1/13 00:00:00 1.Nf3 Ra7 ² (0.53) Depth: 2/18 00:00:00 1.Nf3 Ra7 2.Qd3 ² (0.63) Depth: 3/15 00:00:00 1.Nf3 Na5 2.Bd3 d5 3.exd6 ² (0.47) Depth: 4/18 00:00:00 1kN 1.Nf3 Na5 2.Bd3 c4 3.Be4 Bxe4 ² (0.44) Depth: 5/16 00:00:00 6kN 1.Nf3 Na5 2.Bd3 Qc6 3.b3 d5 4.exd6 ² (0.31) Depth: 6/19 00:00:00 19kN 1.Nf3-- = (0.00) Depth: 7/19 00:00:00 44kN 1.Nf3-- = (0.00) Depth: 7/20 00:00:00 51kN 1.Nf3 Na5 2.Ba2 Qc6 3.b3 b5 4.axb5 axb5 5.Qd3 = (0.06) Depth: 8/24 00:00:00 145kN 1.Nf3 Na5 2.Ba2 Qc6 3.b3 b5 4.axb5 axb5 5.Qd3 c4 = (0.06) Depth: 9/24 00:00:00 400kN 1.Nf3 Na5 2.Ba2 Qc6 3.b3 b5 4.axb5 axb5 5.Qd3 c4 6.Qe3 = (-0.06) Depth: 10/26 00:00:01 921kN 1.Nf3 Na5 2.Bd3 Qc6 3.b3 c4 4.Bxc4 Nxc4 5.Qxc4 Qxc4 6.bxc4 Bc6 = (-0.03) Depth: 11/31 00:00:05 3304kN 1.Nxf7! = (0.00) Depth: 11/31 00:00:08 5482kN 1.Nxf7! Kxf7 2.Rxd7 Rxd7 3.Bxe6+ Kxe6 4.Qc4+ Kf5 5.Qf7+ Bf6 6.Rxd7 Nxe5 ² (0.63) Depth: 11/33 00:00:10 6298kN 1.Nxf7 Kxf7 2.Rxd7 Rxd7 3.Bxe6+ Kxe6 4.Qc4+ Kf5 5.Qf7+ Bf6 6.Rxd7 Nxe5 ² (0.63) Depth: 12/31 00:00:12 7852kN 1.Nxf7-- ² (0.31) Depth: 13/33 00:00:20 13083kN 1.Nxf7-- Kxf7 2.Rxd7 Rxd7 3.Bxe6+ Kxe6 4.Qc4+ Kf5 5.Qf7+ Bf6 6.Rxd7 Qc8 = (0.22) Depth: 13/38 00:00:33 21478kN 1.Nxf7 Kxf7 2.Rxd7 Rxd7 3.Bxe6+ Kxe6 4.Qg4+ Kf7 5.e6+ Kg8 6.Rxd7 Qc8 ² (0.28) Depth: 14/38 00:01:42 64075kN 1.Nxf7! ² (0.59) Depth: 15/36 00:03:00 117469kN 1.Nxf7! Kxf7 2.Rxd7 Rxd7 3.Bxe6+ Kxe6 4.Qc4+ Kf5 5.Qf7+ Bf6 6.Rxd7 Nxe5 ± (0.78) Depth: 15/42 00:04:41 186893kN 1.Nxf7 Kxf7 2.Rxd7 Rxd7 3.Bxe6+ Kxe6 4.Qc4+ Kf5 5.Qf7+ Bf6 6.Rxd7 Nxe5 ± (0.81) Depth: 16/40 00:09:52 393791kN (Blass, Tel-aviv 24.09.2001) Note that all the moves of the main line are singular for black and Deep Fritz can see more than +3 if black tries different moves After the main line Deep Fritz can see easily a decisive advantage but unfortunately Deep Fritz does not do the extensions that I do in analyzing "singular main line opponent replies extensions" so it needs my help to see more than +3 in the root position. New position r7/1bqR1Qp1/pp3b1p/2p1nk2/P4B2/2P5/1PP2PPP/6K1 w - - 0 1 Analysis by Deep Fritz: 7.Rxc7! -+ (-3.69) Depth: 1/6 00:00:00 7.Rxc7! Nxf7 -+ (-1.56) Depth: 1/6 00:00:00 7.Bxe5! µ (-1.16) Depth: 1/6 00:00:00 7.Bxe5! Qxe5 8.Rxb7 ³ (-0.53) Depth: 1/6 00:00:00 7.Qh5+! ³ (-0.50) Depth: 1/6 00:00:00 7.Qh5+! Kxf4 8.Rxc7 Bc8 9.g3+ Ke4 10.Qe2+ Kd5 11.Qd1+ Ke4 ± (1.31) Depth: 1/10 00:00:00 7.Qh5+ Kxf4 8.Rxc7 Bc8 9.g3+ Ke4 10.Qe2+ Kd5 11.Qd1+ Ke4 ± (1.31) Depth: 2/10 00:00:00 7.Qh5+ Kxf4 8.Rxc7 Bd5 ± (1.22) Depth: 3/10 00:00:00 7.Qh5+ Kxf4 8.Rxc7 Bc6 9.g3+ Ke4 10.Qe2+ Kd5 ± (1.13) Depth: 4/14 00:00:00 3kN 7.Qh5+ Kxf4 8.Rxc7 Rb8 9.a5 bxa5 10.Rxc5 ± (1.34) Depth: 5/14 00:00:00 9kN 7.Qh5+ Kxf4 8.Rxc7 Rb8 9.a5 bxa5 10.Rxc5 ± (1.34) Depth: 6/21 00:00:00 22kN 7.Qh5+ Kxf4 8.Rxc7 Rb8 9.a5 bxa5 10.Rxc5 Bc6 ± (1.31) Depth: 7/22 00:00:00 65kN 7.Qh5+ Kxf4 8.Rxc7 Rb8 9.a5 bxa5 10.Rxc5 Bc6 11.g3+ Ke4 12.Qe2+ Kf5 ± (1.22) Depth: 8/25 00:00:00 199kN 7.Qh5+! +- (1.53) Depth: 9/24 00:00:00 421kN 7.Qh5+! Kxf4 8.Rxc7 Bc8 9.g3+ Ke4 10.Qe2+ Kd5 11.f4 Kd6 12.Rxc8 Rxc8 +- (2.69) Depth: 9/27 00:00:01 747kN 7.Qh5+ Kxf4 8.Rxc7 Bc8 9.g3+ Ke4 10.Qe2+ Kd5 11.Qd1+ Ke4 12.f4 Be6 +- (2.78) Depth: 10/29 00:00:02 1545kN 7.Qh5+ Kxf4 8.Rxc7 Bc8 9.g3+ Ke4 10.Qe2+ Kd5 11.Qd1+ Ke4 12.f4 Bg4 +- (2.81) Depth: 11/31 00:00:05 3441kN 7.Qh5+! +- (3.13) Depth: 12/29 00:00:11 7744kN 7.Qh5+! Kxf4 8.Rxc7 Bc8 9.g3+ Ke4 10.Qe2+ Kd5 11.Qd1+ Ke4 12.f4 Bg4 +- (3.31) Depth: 12/35 00:00:17 11842kN 7.Qh5+! +- (3.63) Depth: 13/35 00:00:42 28053kN 7.Qh5+! Kxf4 8.g3+ Ke4 9.Rxc7 Bc8 10.Qe8 Bb7 11.Qe6 Rb8 12.g4 Bc8 +- (3.91) Depth: 13/38 00:00:56 36876kN (Blass, Tel-aviv 24.09.2001) Uri
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