Author: Uri Blass
Date: 05:55:12 10/16/01
Go up one level in this thread
On October 16, 2001 at 07:34:13, Kim Roper Jensen wrote: >This position is taken from the game G. Shmulenson - G. Sanakoev 8th World Ch. >Semi Final 1972-75 in Correspondence chess > >[D] 1q3rk1/1bnnpp1p/3p2p1/1ppP4/3r1P2/R2BN3/1PP3PP/2B1QRK1 w - - 0 21 > >In the book "World Champion at the Third Attemp" by G. Sanakoev (This is by the >way a VERY good book with thorough analysis) this game is included and white >starts a very deep attack, i let Deep Junior 6.0 & Junior 7.0(not deep) crunch >on this for approx 80 minutes but it never found the key move. >The machine used was a dual PIII 1GHz with 2Gb ram, but only 512MBytes hash on >win2k. > >The move to find for white is ----> Nf5 !! Deep Fritz can see no advantage some minutes after Nf5 gxf5 Nf5 b4 is another option to analyze when Deep Fritz can see no advantage. See the analysis at the end of the post. I think that it is better if you post the game so people can analyze the game in order to find faster if black missed the right defense and if there is a chance for programs to solve it in case that the move Nf5 is winning. The game was played almost 30 years ago and it is clear that white did not use chess programs to help him so I do not trust themoves more than computer analysis. New position [D]1q3rk1/1bnnpp1p/3p4/1ppP1p2/3r1P2/R2B4/1PP3PP/2B1QRK1 w - - 0 1 Analysis by Deep Fritz: 2.Qxe7 Qd8 3.Qxd8 Rxd8 4.Ra7 Rb8 5.Bxf5 µ (-1.12) Depth: 6/19 00:00:00 29kN 2.Qxe7 Qd8 3.Qxd8 Rxd8 4.Ra7 Rb8 5.Bxf5 µ (-1.12) Depth: 6/19 00:00:00 29kN 2.Qxe7 Qd8 3.Qxd8 Rxd8 4.Ra7 Rb8 5.Bxf5 µ (-1.12) Depth: 6/19 00:00:00 29kN 2.Qxe7 Qd8 3.Qxd8 Rxd8 4.Ra7 Rb8 5.Bxf5 µ (-1.12) Depth: 6/19 00:00:00 29kN 2.Qxe7 Qd8 3.Qxd8 Rxd8 4.Ra7 Rb8 5.Bxf5 µ (-1.12) Depth: 6/19 00:00:00 29kN 2.Qxe7 Qd8 3.Qxd8 Rxd8 4.Ra7 Rb8 5.Bxf5 µ (-1.12) Depth: 6/19 00:00:00 29kN 2.Qxe7 Qd8 3.Qxd8 Rxd8 4.Ra7 Rb8 5.Bxf5 µ (-1.12) Depth: 6/19 00:00:00 29kN 2.Qxe7 Qd8 3.Qxd8 Rxd8 4.Ra7 Rb8 5.Bxf5 µ (-1.12) Depth: 6/19 00:00:00 29kN 2.Qxe7 Qd8 3.Qxd8 Rxd8 4.Ra7 Rb8 5.Bxf5 Nf6 µ (-1.16) Depth: 7/20 00:00:00 88kN 2.Qxe7-- -+ (-1.47) Depth: 8/19 00:00:00 127kN 2.Qxe7-- Qd8 3.Qxd8 Rxd8 4.Ra7 Rb8 5.Bxf5 Nf6 6.Re1 Ncxd5 -+ (-2.28) Depth: 8/21 00:00:00 193kN 2.Qxe7 Qd8 3.Qxd8 Rxd8 4.Ra7 Rb8 5.Bxf5 Nf6 6.Re1 Ncxd5 -+ (-2.28) Depth: 9/27 00:00:01 749kN 2.Qxe7 Qd8 3.Qxd6 Ne6 4.c4 bxc4 5.Bxc4 Nf6 6.Rg3+ Kh8 7.Qe5 Bxd5 -+ (-2.28) Depth: 10/28 00:00:03 2218kN 2.Qxe7 Qd8 3.Qxd6 Rxd5 4.Qh6 Qf6 5.Qg5+ Qxg5 6.fxg5 Ne5 7.Bxf5 -+ (-2.25) Depth: 11/27 00:00:09 6282kN 2.Bxf5! -+ (-2.22) Depth: 11/31 00:00:14 8994kN 2.Bxf5! Nf6 3.Rh3 Ncxd5 4.Qh4 Rd8 5.Bxh7+ Kf8 6.Bd3 Nb4 7.Qh8+ -+ (-1.91) Depth: 11/32 00:00:17 11103kN 2.Bxf5-- -+ (-2.22) Depth: 12/34 00:00:32 20673kN 2.Bxf5-- -+ (-2.22) Depth: 12/34 00:00:38 24307kN 2.Bxf5! -+ (-1.91) Depth: 13/34 00:01:33 60883kN 2.Bxf5! Nf6 3.Rh3 Rd8 4.Qxe7 Ncxd5 5.Rg3+ Kh8 6.Qxf7 Qc7 7.Rg7 Qxf7 -+ (-1.44) Depth: 13/37 00:02:15 87195kN 2.Bxf5! µ (-1.12) Depth: 14/39 00:04:03 156846kN 2.Bxf5! Nf6 3.Rh3 Rd8 4.Bxh7+ Kf8 5.Bf5 e6 6.dxe6 fxe6 7.Bxe6 Re4 µ (-0.97) Depth: 14/39 00:05:56 227273kN (Blass, Tel-aviv 16.10.2001) New position [D]1q3rk1/1bnnpp1p/3p2p1/2pP1N2/1p1r1P2/R2B4/1PP3PP/2B1QRK1 w - - 0 1 Analysis by Deep Fritz: 2.Nxd4! ³ (-0.28) Depth: 1/3 00:00:00 2.Nxd4! bxa3 = (0.09) Depth: 1/12 00:00:00 2.Nxe7+! = (0.16) Depth: 1/12 00:00:00 2.Nxe7+! Kg7 ± (1.19) Depth: 1/12 00:00:00 2.Nxe7+-- ± (0.88) Depth: 2/11 00:00:00 2.Nxe7+-- Kg7 3.Ra5 Bxd5 = (-0.12) Depth: 2/13 00:00:00 2.Nxd4! = (-0.03) Depth: 2/14 00:00:00 1kN 2.Nxd4! bxa3 3.Qxe7 = (0.09) Depth: 2/14 00:00:00 1kN 2.Nxd4 bxa3 3.Qxe7 axb2 = (0.09) Depth: 3/17 00:00:00 2kN 2.Nxd4 bxa3 3.Qxe7 axb2 4.Bxb2 Bxd5 = (0.09) Depth: 4/18 00:00:00 6kN 2.Nxd4-- = (-0.22) Depth: 5/18 00:00:00 22kN 2.Nxd4-- bxa3 3.Qxe7 Rd8 4.c4 cxd4 ³ (-0.50) Depth: 5/18 00:00:00 25kN 2.Nxe7+! ³ (-0.47) Depth: 5/18 00:00:00 25kN 2.Nxe7+! Kg7 3.Ra5 Re8 4.Qh4 Bxd5 = (-0.25) Depth: 5/20 00:00:00 39kN 2.Nxe7+ Kg7 3.Ra5 Re8 4.Qh4 Nxd5 5.Re1 Nxe7 = (-0.22) Depth: 6/18 00:00:00 84kN 2.Nxe7+ Kg7 3.Ra4 Re8 4.Qh4 Nb6 5.Ra5 Bxd5 ³ (-0.28) Depth: 7/24 00:00:00 229kN 2.Nxe7+-- ³ (-0.59) Depth: 8/30 00:00:00 546kN 2.Nxe7+-- Kg7 3.Ra4 Re8 4.Qh4 Qd8 5.Re1 Nxd5 6.Be3 ³ (-0.69) Depth: 8/30 00:00:01 644kN 2.Nxd4! ³ (-0.66) Depth: 8/30 00:00:01 831kN 2.Nxd4 bxa3 3.Nc6 Bxc6 4.dxc6 a2 5.Bd2 Nf6 6.Qa1 Qa8 ³ (-0.62) Depth: 9/25 00:00:02 1554kN 2.Nxe7+! ³ (-0.59) Depth: 9/30 00:00:03 2234kN 2.Nxe7+! Kg7 3.Ra1 Re8 4.Rf2 Nf6 ³ (-0.56) Depth: 9/30 00:00:03 2306kN 2.Nxe7+ Kg7 3.Ra1 Re8 4.Rf2 Nf6 5.Re2 c4 6.Bf5 µ (-0.78) Depth: 10/33 00:00:08 5694kN 2.Nxd4! µ (-0.75) Depth: 10/33 00:00:09 5921kN 2.Nxd4! bxa3 3.Nc6 Bxc6 4.dxc6 a2 5.Bd2 Nf6 6.Qa1 Qe8 7.Qxa2 Qxc6 ³ (-0.59) Depth: 10/33 00:00:09 6294kN 2.Nxd4 bxa3 3.Nc6 Bxc6 4.dxc6 a2 5.Be3 Nf6 6.Qa1 Ncd5 7.Bd2 Qc8 ³ (-0.69) Depth: 11/33 00:00:15 10206kN 2.Nxe7+! ³ (-0.66) Depth: 11/33 00:00:20 13493kN 2.Nxe7+! Kg7 3.Ra1 Re8 4.Rf2 Nf6 5.Re2 Ncxd5 6.Nxd5 Rxe2 7.Bxe2 ³ (-0.44) Depth: 11/41 00:00:32 21593kN 2.Nxe7+-- µ (-0.75) Depth: 12/43 00:01:09 46117kN 2.Nxe7+-- Kg7 3.Ra1 Re8 4.Rf2 Nf6 5.Re2 c4 6.Bf5 Ncxd5 µ (-0.81) Depth: 12/43 00:01:36 63422kN 2.Nxd4! µ (-0.78) Depth: 12/43 00:01:39 65926kN 2.Nxd4 bxa3 3.Nc6 Bxc6 4.dxc6 a2 5.Be3 Nb6 6.Qa1 Nbd5 7.Bf2 Nb4 µ (-0.81) Depth: 13/35 00:02:32 102204kN 2.Nxe7+! µ (-0.78) Depth: 13/35 00:02:40 107576kN 2.Nxe7+! Kg7 3.Ra1 Re8 4.Rf2 Nf6 5.Re2 c4 6.Bf5 Ncxd5 µ (-0.75) Depth: 13/42 00:04:08 166924kN (Blass, Tel-aviv 16.10.2001)
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