Author: Sune Larsson
Date: 04:57:25 02/28/01
Go up one level in this thread
On February 28, 2001 at 07:41:38, Paul wrote: >On February 28, 2001 at 07:33:26, Ed Schröder wrote: > >>On February 28, 2001 at 07:13:50, Sune Larsson wrote: >> >>> >>> [D]3r1r1k/p2p2pp/np1P1q2/5p2/1PP1p3/P3Q3/B2R1PPP/4R1K1 w - - 0 1 >>> >>> This is the game Kurt Richter - Schlage, Berlin 1930. >>> We can call it a positional test. The theme is about >>> immobilizing your opponent's pieces. Guess Richter was >>> in a splendid mood when he played 1.c5! bxc5 2.b5! Nb8 3.Lc4! >>> The black knight was a mere spectator for the rest of the game: >>> >>> 1.c5! bxc5 2.b5! Nb8 3.Bc4! Rde8 4.f4 Rc8 5.a4 h6 6.Rd5 g5 7.fxg5 Qxg5 >>> 8.Qxg5 hxg5 9.g4! fxg4 10.Rxe4 Rf4 11.Rxf4 gxf4 12.Rg5 g3 13.hxg3 fxg3 >>> 14.Kg2 Kh7 15.Kxg3 a6 16.Kf4 axb5 17.axb5 Kh6 18.Rg8 Rxg8 19.Bxg8 Kg7 >>> 20.Bc4 Kf6 21.Ke4 Kg5 22.Kd5 Kf4 23.Kxc5 Ke5 24.Bg8 Kf6 25.Kb6 1-0 >>> >>> Test: Your program should give white a big +score for the >>> moveorder 1.c5! bxc5 2.b5! >>> >>> Sune >> >> >>No big plus score but Century 3.1 (beta) does the job in 9 seconds. >> >>Ed >> >>----------- >> >>Loading... >> >>Engine version : Rebel Century 3.1 >>Hash table size : 60 Mb >> >>3r1r1k/p2p2pp/np1P1q2/5p2/1PP1p3/P3Q3/B2R1PPP/4R1K1 w - - >> >>00:00:00 04.00 0.66 1.Bb3 Rc8 2.Qh3 h6 [2291] >>00:00:01 05.00 0.67 1.Bb3 Rfe8 2.Qh3 f4 [8135] >>00:00:02 06.00 0.64 1.Bb3 Rc8 2.Qh3 h6 3.Rdd1 Qb2 [26176] >>00:00:04 07.00 0.60 1.Bb3 Rc8 2.Qh3 h6 3.Red1 Nb8 4.Qg3 [45612] >>00:00:06 08.00 0.55 1.Bb3 Nb8 2.Rd5 Nc6 3.Rdd1 Ne5 4.Qh3 [107959] >>00:00:09 08.07 0.55 1.c5 [141105] >>00:00:09 08.07 0.74 1.c5 bxc5 2.b5 Nb8 3.Qxc5 a6 4.Rc1 axb5 5.Qxb5 [154984] >>00:00:11 09.00 0.55 1.c5 bxc5 2.Bc4 Nb8 3.bxc5 Nc6 4.Qh3 Ne5 5.Bd5 [154691] >>00:00:24 10.00 0.50 1.c5 bxc5 2.b5 Nb8 3.Qxc5 a6 4.Rc1 axb5 5.Qxb5 Rc8 6.Rc7 >>Qa1 [243271] >>00:01:03 11.00 0.50 1.c5 bxc5 2.b5 Nb8 3.Qxc5 a6 4.Rc1 axb5 5.Qxb5 Rc8 6.Rc7 >>Qa1 7.Qf1 [279474] > >Pretz plays c5 bxc5 b5 Nb8 Qxc5 a6 Bc4 axb5 Bxb5 ... but that means that we >don't find 3. Bc4! which is in the original line from Sune ... > >Groetjes, >Paul Yes, the point is to keep the black knight in his stable, so every try with ..a6 should be met by a4!. And, as Richter showed, there is no need to take the pawn on c5. By this white is playing a piece up. Sune
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