Author: Alessandro Scotti
Date: 04:58:32 01/31/05
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On January 31, 2005 at 07:47:31, F. Huber wrote: >On January 31, 2005 at 07:42:18, Alessandro Scotti wrote: > >>Hi Uri, >>just a question as I don't have tablebases: is g8=Q a mate in 6 too? > >Hi Alessandro, > >both moves are mate in 6 - even Chest without any TBs finds it quickly: > >ChestUCI Ver.3.7: >CPU: Celeron 400MHz >FEN: 8/6P1/k6P/7K/p7/8/8/8 w - - >Suche nach Matt in 10 ... (Hash=45MB) > 6 00:01 0 0 +M6 1.h7 > 6 00:02 31.362 52.270 +M6 1.g8D >Suche abgeschlossen ... (Zeit=2.14s) >Matt in 6 gefunden ! (2 Lösungen in 00:02) > 6/6 00:02 118.215 55.240 +M6 1.g8D a3 2.Dc4+ Kb6 3.h7 a2 4.h8D a1D 5.Db8+ >Ka5 6.Dbb5+ > 6/6 00:02 118.215 55.240 +M6 1.h7 a3 2.h8D a2 3.Dc8+ Kb6 4.g8D a1D 5.Db3+ >Ka5 6.Da8+ >Bester Zug: h7, Wert: +Matt in 6, Tiefe: 6/6, Dauer: 00:03,188, 118.215 Knoten, >55.240 K/sek > >Regards, >Franz. Thanks guys, this was the output of Kiwi 0.4c: ... 8/11 +18.72 00:00 147467 g8=Q Kb5 h7 a3 Qb3+ Ka6 Qxa3+ Kb7 h8=Q Kc7 9/ 0 M6 00:00 395081 g8=Q Kb5 h7 a3 h8=Q Kb6 Qd5 Ka7 Qha8+ Kb6 and here's that of version 0.4d, which is almost identical but has different extension settings (extends more): 8/13 +18.72 00:00 123279 g8=Q Ka5 h7 a3 Qb3 Ka6 Qxa3+ Kb7 h8=Q Kc7 9/ 0 M7 00:00 777467 g8=Q a3 h7 Ka7 h8=Q Kb6 Qd5 Ka6 Qha8+ Kb6 ...so I suspected a bug... whew! 8-O
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