Author: John Merlino
Date: 19:37:31 05/05/04
Go up one level in this thread
On May 05, 2004 at 20:00:05, George Tsavdaris wrote: >On May 05, 2004 at 18:15:54, Vincent Lejeune wrote: > >>In the article "Tactics from the Russian Team Champ" on the chessbase site ( >>http://www.chessbase.com/newsdetail.asp?newsid=1625 ) >>We can see this position : >>[D]r1r3k1/3n1b2/p1qp3Q/1p2p2p/4P3/1PP1BP2/2P5/1K1R1B2 w - - 0 29 >>with the comment "29.Bxb5!! ...this clearance sacrifice."; In fact Bxb5 is only >>the third best move, Chessmaster 9000 confirms that with the 3 best moves mode : > > As all moves lead to mate, all moves are the best ones. So i don't think Bxb5 >deserves a (!!) but only a (!) . > Also the below analysis doesn't prove that Bxb5 is not a mate in 6 or 7 for >example, so it may be the quickest mate after all. I have determined with reasonable certainty, from a little bit of poking around with lines, that Bxb5 is at most a Mate in 14. There may be a Mate in 13 lurking around in there, but no less. >> >>Time Depth Score Positions Moves >>4:48 1/13 Mate07 127988483 29.Bh3 Nf6 30.Qxf6 Qe8 31.Bh6 Qf8 >> 32.Rg1+ Bg6 33.Qxg6+ Kh8 34.Bxf8 >> Rxf8 35.Qg7# >>4:54 1/13 Mate08 130793582 29.Bc4 Qxc4 30.Rg1+ Bg6 31.Rxg6+ >> Kf7 32.Rg7+ Ke8 33.bxc4 Rc7 34.Qxh5+ >> Kd8 35.Qh8+ Nf8 36.Qxf8# >>5:25 1/13 Mate15 145728017 29.Bxb5 Nf8 30.Rg1+ Bg6 31.Rxg6+ >> Nxg6 32.Qxg6+ Kh8 33.Bg5 d5 34.Bxc6 >> Rxc6 35.Qxc6 Rf8 36.Qh6+ Kg8 37.Qg6+ >> Kh8 38.Qxh5+ Kg8 39.Bh6 Kh7 40.Bxf8+ >> Kg8 41.Qh6 Kf7 42.Qg7+ Ke8 43.Qe7# jm
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