Author: Oliver Roese
Date: 05:55:17 09/16/00
Go up one level in this thread
On September 15, 2000 at 16:41:02, Gian-Carlo Pascutto wrote: >On September 14, 2000 at 15:55:55, Dann Corbit wrote: > >>Here are a set of tough positions to search deeply. Just finding a mate is not >>good enough, uless you can *prove* it is the shortest mate. Analyze to a depth >>of 16 plies. >> >>The first one to solve *any* of these positions to that depth (16 or more) will >>have a poem composed in their honor. The challenge is permanent and a >>technological breakthrough may require that I write an entire book of poetry >>(27) poems dedicated to whoever can topple these beasts. > >Better start writing then... > > >[D]2rqk2r/pb1nbp1p/4p1p1/1B1n4/Np1N4/7Q/PP3PPP/R1B1R1K1 w k - > >1.Rxe6 fxe6 2.Nxe6 Qa5 3.Bxd7+ Kxd7 4.Nec5+ Ke8 5.Qd7+ Kf7 6.Nxb7 > ³ (-0.34) depth: 8/15 00:00:00 14kN >1.Rxe6 fxe6 2.Nxe6 Qa5 3.Bxd7+ Kxd7 4.Nec5+ Ke8 5.Qd7+ Kf7 6.Nxb7 > ³ (-0.34) depth: 9/16 00:00:01 20kN >1.Rxe6 fxe6 2.Nxe6 Qa5 3.Bxd7+ Kxd7 4.Nec5+ Ke8 5.Nxb7 Qc7 > ³ (-0.27) depth: 10/16 00:00:01 37kN >1.Rxe6 fxe6 2.Nxe6 Qa5 3.Bxd7+ Kxd7 4.Nec5+ Ke8 5.Nxb7 Qc7 > ³ (-0.27) depth: 11/20 00:00:03 78kN If i recall it correctly, the line above is loosing for white. Correct me if i am wrong, but i have enough from this position... :) >1.Rxe6 N5f6 2.Re2 a6 3.Bd3 0-0 > ² (0.61) depth: 12/20 00:00:08 198kN >1.Rxe6 Rc7 2.Re1 0-0 3.Bh6 Re8 4.Rac1 Rxc1 5.Bxc1 N5f6 6.Bc6 > ² (0.48) depth: 13/22 00:00:15 394kN >1.Rxe6 Rc7 2.Re4 a6 3.Be2 0-0 4.Bh6 N7f6 > ² (0.45) depth: 14/22 00:00:26 634kN >1.Rxe6 Rc7 2.Re2 a6 3.Bxd7+ Qxd7 4.Qxd7+ Rxd7 5.Nc5 Rc7 > ² (0.45) depth: 15/23 00:00:45 1025kN >1.Rxe6 Rc7 2.Re1 a6 3.Bd3 0-0 4.Bh6 Re8 > ² (0.43) depth: 16/24 00:01:15 1648kN >1.Rxe6 Rc7 2.Re2 a6 3.Bd3 0-0 4.Bh6 Re8 > ² (0.42) depth: 17/25 00:02:34 3487kN > Sorry but there are serious doubts about the merits of 1.Rxe6. This position was posted by Ed Schröder some months ago. It is a kind of computertrap. Just dirigate your chessengine to the position above and wait. I analyzed this position some time ago and my last personally impression was, that 1.Rxe6 is incorrect. (I deleted the rest of the post, since it is too long to carry over) ...
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