Author: Jasmine Baer
Date: 12:06:49 06/29/05
Go up one level in this thread
On June 28, 2005 at 20:54:02, Christos Gitsis wrote: >On June 28, 2005 at 19:39:30, Jasmine Baer wrote: > >>I was examining an engine vs. engine game a little more in depth with Shredder >>9, and Shredder came up with a small little error: >> >>Shredder 9.02 UCI - Shredder 9 >>3r2k1/3r1p2/3P3b/ppB2qp1/4pP1p/PP2Q3/3R2PP/5R1K w - - 0 1 >> >>Analysis by Shredder 9: >> >>1. = (0.04): 38.g3 hxg3 39.hxg3 f6 40.Rh2 Rh7 41.b4 axb4 42.Bxb4 gxf4 43.gxf4 >>Kh8 44.Qb6 Re8 45.d7 >>2. = (0.04): 38.g4 hxg3 39.hxg3 f6 40.Rh2 Rh7 41.b4 axb4 42.Bxb4 gxf4 43.gxf4 >>Kh8 44.Qb6 Re8 45.d7 >>3. = (0.00): 38.Rdf2 gxf4 39.Rxf4 Bxf4 40.Rxf4 Qh5 41.Rxe4 f5 42.Re5 Qd1+ 43.Qg1 >>Qxg1+ 44.Kxg1 Rf7 45.Rd5 Rf6 >>4. ³ (-0.35): 38.Bb6 gxf4 39.Qf2 Rxd6 40.Bxd8 e3 41.Rxd6 exf2 42.Rd2 h3 43.Rdxf2 >>Qd3 44.Bxa5 hxg2+ 45.Rxg2+ Kh7 46.Rgf2 Qxb3 47.Rf3 Qb2 >>5. ³ (-0.35): 38.Qf2 gxf4 39.Bb6 Rxd6 40.Bxd8 e3 41.Rxd6 exf2 42.Rd2 h3 43.Rdxf2 >>Qd3 44.Bxa5 hxg2+ 45.Rxg2+ Kh7 46.Rgf2 Qxb3 47.Rf3 Qb2 >> >>(, 28.06.2005) >> >>In the second variation, White's 38th move is listed as g4, with the >>continuation being 38...hxg3 --> which is impossible if the pawn is moved from >>g2 to g4 on move 38. The second variation is identical to the first variation >>with the exception of the erroneous 38.g4. >> >>I'm not knocking the engine - I only post this here because Shredder's author >>may find it interesting. > >Quote from FIDE's laws of chess, Article 3: The moves of the pieces >(http://www.fide.com/official/handbook.asp?level=EE101) > >"A pawn attacking a square crossed by an opponent's pawn which has advanced two >squares in one move from its original square may capture this opponent's pawn as >though the latter had been moved only one square. This capture may only be made >on the move following this advance and is called an 'en passant' capture." Stupid me! I completely whiffed on the en passant capture. Would have been nice to see "ep" or something in the notation, though. Still, brain cramp on my part.
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