Author: Uri Blass
Date: 08:29:32 08/30/01
Go up one level in this thread
On August 30, 2001 at 08:10:54, Mogens Larsen wrote: >In a blitz correspondence game between Gandalf and Comet, the following board >position was reached. > >[D]r2r4/pp1q2bk/n1npb1pp/1N1Npp2/1PP2P2/PQ2P1PP/1B4B1/1R1R2K1 w - - > >Here Gandalf played 22. Nxd6. What do other engines think? > >The game so far. Deep Fritz(PIII800) can find it at depth 1 New position r2r4/pp1q2bk/n1npb1pp/1N1Npp2/1PP2P2/PQ2P1PP/1B4B1/1R1R2K1 w - - 0 1 Analysis by Deep Fritz: 1.Bxe5-- ³ (-0.62) Depth: 1/4 00:00:00 1.Bxe5-- dxe5 -+ (-1.56) Depth: 1/9 00:00:00 1.Nxd6! -+ (-1.41) Depth: 1/9 00:00:00 1.Nxd6! Qxd6 µ (-1.37) Depth: 1/16 00:00:00 I do not want to spoil the fun but here is the rest of the analysis 1.Nxa7! µ (-1.34) Depth: 1/16 00:00:00 1.fxe5! µ (-1.31) Depth: 1/16 00:00:00 1.fxe5! dxe5 ² (0.59) Depth: 1/16 00:00:00 1.Qd3! ² (0.63) Depth: 1/16 00:00:00 1.Qd3! ± (1.28) Depth: 1/16 00:00:00 1.Qd3 e4 ± (1.00) Depth: 2/9 00:00:00 1.Qd3 e4 2.Qd2 ± (0.88) Depth: 3/18 00:00:00 3kN 1.Rbc1! ± (0.91) Depth: 3/22 00:00:00 6kN 1.Rbc1! Bxd5 2.Bxd5 Rac8 ± (1.03) Depth: 3/22 00:00:00 8kN 1.Rbc1 Ne7 2.Nbc3 e4 ± (0.84) Depth: 4/22 00:00:00 23kN 1.Qd3! ± (0.88) Depth: 4/22 00:00:00 33kN 1.fxe5! ± (0.91) Depth: 4/24 00:00:00 110kN 1.fxe5! Nxe5 2.Bd4 Qc8 3.Rbc1 ± (1.00) Depth: 4/24 00:00:00 112kN 1.fxe5 Nxe5 2.Bd4 b6 3.Qa4 Qc8 ± (1.06) Depth: 5/21 00:00:00 150kN 1.fxe5 Nxe5 2.Bd4 b6 3.a4 Re8 4.Nbc3 ± (0.97) Depth: 6/25 00:00:00 255kN 1.fxe5 Nxe5 2.Bd4 Qc8 3.Rbc1 Qb8 4.Nbc3 Re8 ± (1.00) Depth: 7/25 00:00:00 550kN 1.Rbc1! ± (1.03) Depth: 7/28 00:00:01 767kN 1.Rbc1! Ne7 2.Nxd6 Bxd5 3.Bxd5 Qxd6 4.Bxb7 Qe6 ± (1.06) Depth: 7/30 00:00:01 896kN 1.Rbc1 Qf7 2.Qc3 Ne7 3.Nxe7 Qxe7 4.Qd2 exf4 5.Bxg7 Kxg7 6.exf4 ± (0.97) Depth: 8/31 00:00:03 2408kN 1.fxe5! ± (1.00) Depth: 8/31 00:00:03 2542kN 1.fxe5! dxe5 2.Nf6+ Bxf6 ± (1.06) Depth: 8/31 00:00:04 3032kN 1.fxe5 dxe5 2.Nf6+ Bxf6 3.Rxd7+ Rxd7 4.Rd1 Rad8 5.Rxd7+ Rxd7 6.Nc3 ± (1.03) Depth: 9/32 00:00:08 5665kN 1.fxe5 dxe5 2.Nf6+ Bxf6 3.Rxd7+ Rxd7 4.Rd1 Rxd1+ 5.Qxd1 Rd8 6.Qe2 Nab8 ± (1.03) Depth: 10/29 00:00:15 10422kN 1.fxe5 Nxe5 2.Rbc1 Bxd5 3.Bxd5 Qe7 4.Bd4 Nc6 5.Bxg7 Kxg7 6.Qc3+ Ne5 ± (1.00) Depth: 11/34 00:00:37 26166kN 1.fxe5 Nxe5 2.Rbc1 Bxd5 3.Bxd5 Qe7 4.Bd4 Nc6 5.Bxg7 Kxg7 6.Qc3+ Kh7 ± (1.00) Depth: 12/37 00:01:17 55926kN 1.fxe5 Nxe5 2.Rbc1 Bxd5 3.Bxd5 Qe7 4.Bd4 Nc6 5.Bxg7 Kxg7 6.Qc3+ Kh7 ± (0.97) Depth: 13/40 00:03:45 160604kN 1.fxe5 Nxe5 2.Rbc1 Bxd5 3.Bxd5 Qe7 4.Bd4 Nc6 5.Bxg7 Kxg7 6.Qc3+ Kh7 ± (1.06) Depth: 14/41 00:10:38 457166kN (Blass, Tel-aviv 30.08.2001) Here is Deep Fritz's anlaysi after 1.Nxd6 and it seems that Nxd6 is losing 0.5 pawns because the score is only 0.56 pawns for white at depth 13. New position r2r4/pp1q2bk/n1nNb1pp/3Npp2/1PP2P2/PQ2P1PP/1B4B1/1R1R2K1 b - - 0 1 Analysis by Deep Fritz: 1...Qxd6 2.Nf6+ Bxf6 3.Rxd6 Rxd6 4.fxe5 ³ (-0.50) Depth: 5/25 00:00:00 24kN 1...Qxd6 2.Nf6+ Bxf6 3.Rxd6 Rxd6 4.fxe5 ³ (-0.50) Depth: 5/25 00:00:00 24kN 1...Qxd6 2.Nf6+ Bxf6 3.Rxd6 Rxd6 4.fxe5 ³ (-0.50) Depth: 5/25 00:00:00 24kN 1...Qxd6 2.Nf6+ Bxf6 3.Rxd6 Rxd6 4.fxe5 ³ (-0.50) Depth: 5/25 00:00:00 24kN 1...Qxd6 2.Nf6+ Bxf6 3.Rxd6 Rxd6 4.fxe5 ³ (-0.50) Depth: 5/25 00:00:00 24kN 1...Qxd6 2.Nf6+ Bxf6 3.Rxd6 Rxd6 4.fxe5 ³ (-0.50) Depth: 5/25 00:00:00 24kN 1...Qxd6 2.Nf6+ Bxf6 3.Rxd6 Rxd6 4.fxe5 ³ (-0.50) Depth: 5/25 00:00:00 24kN 1...Qxd6 2.Nf6+ Bxf6 3.Rxd6 Rxd6 4.fxe5 ³ (-0.50) Depth: 5/25 00:00:00 24kN 1...Qxd6 2.Nf6+ Bxf6 3.Rxd6 Rxd6 4.fxe5 ³ (-0.50) Depth: 5/25 00:00:00 24kN 1...Qxd6 2.b5 Nc5 3.Qc2 Ne7 4.Nf6+ Bxf6 ³ (-0.38) Depth: 6/27 00:00:00 81kN 1...Qxd6 2.Nf6+ Bxf6 3.Rxd6 Rxd6 4.fxe5 Nxe5 5.Bxe5 Bxe5 6.Bxb7 = (-0.25) Depth: 7/26 00:00:00 243kN 1...Qxd6 2.Nf6+ Bxf6 3.Rxd6 Rxd6 4.fxe5 Nxe5 5.Bxe5 Bxe5 6.Bxb7 Rb8 = (-0.25) Depth: 8/29 00:00:00 613kN 1...Qxd6 2.Nf6+ Bxf6 3.Rxd6 Rxd6 4.fxe5 Nxe5 5.Bxe5 Bxe5 6.Bxb7 Rad8 7.Bxa6 = (-0.22) Depth: 9/33 00:00:04 3116kN 1...Qxd6 2.b5 Nc5 3.Qa2 Nb8 4.fxe5 Qf8 = (0.00) Depth: 10/35 00:00:11 8461kN 1...Qxd6-- ² (0.31) Depth: 11/36 00:00:24 18783kN 1...Qxd6-- 2.Nf6+ Bxf6 3.Rxd6 Rxd6 4.b5 Nc5 5.Qc2 Nd4 6.exd4 ² (0.59) Depth: 11/38 00:00:55 42193kN 1...Qxd6 2.Nf6+ Bxf6 3.Rxd6 Rxd6 4.b5 Nc5 5.Qc2 Nd4 6.exd4 exd4 7.Rd1 ± (0.78) Depth: 12/39 00:01:27 66322kN 1...Qxd6 2.Nf6+ Bxf6 3.Rxd6 Rxd6 4.b5 Nc5 5.Qc2 Nd4 6.exd4 exd4 ² (0.56) Depth: 13/39 00:04:01 184251kN (Blass, Tel-aviv 30.08.2001) Uri
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