Author: Ulrich Tuerke
Date: 07:46:12 12/08/02
Go up one level in this thread
On December 08, 2002 at 10:17:12, Uri Blass wrote: >On December 08, 2002 at 10:11:58, Uri Blass wrote: > >>On December 08, 2002 at 09:50:14, Ulrich Tuerke wrote: >> >>>On December 08, 2002 at 09:36:28, Art Basham wrote: >>> >>>>Ruffian takes 9 ply to find.. >>>>R(f1)xf5...! >>> >>>Comet needs 1o plies (but I guess that seconds are more interesting). >>> >>>Analysis by Comet B54: >>> >>>... >>>1.g4 hxg5 2.Rxf8+ Qxf8 3.gxf5 exf5 4.Bxg5 >>> +- (1.78) Depth: 6/26 00:00:00 204kN >>>1.g4 hxg5 2.Rxf8+ Qxf8 3.gxf5 exf5 4.Bxg5 >>> +- (1.78) Depth: 6/26 00:00:00 216kN >>>1.Qg6 Rxf7 2.Nxf7 Qf8 3.Nxh6+ Nxh6 4.Rxf8+ Rxf8 >>> +- (2.05) Depth: 6/26 00:00:00 254kN >>>1.Qg6 Nxe3 2.Rxf8+ Qxf8 3.Rxf8+ Kxf8 4.Nxe6+ Ke7 >>> +- (2.58) Depth: 6/26 00:00:00 274kN >>>1.Qg6 Rxf7 2.Nxf7 Qe7 3.g4 >>> +- (2.81) Depth: 6/29 00:00:00 347kN >>>1.Qg6 Rxf7 2.Nxf7 Qe7 3.g4 >>> +- (2.80) Depth: 7/29 00:00:01 505kN >>>1.Qg6 Rxf7 2.Nxf7 Qe7 3.g4 >>> +- (2.53) Depth: 7/29 00:00:01 793kN >>>1.Qg6 Rxf7 2.Nxf7 Qe8 3.d5 >>> +- (2.00) Depth: 7/29 00:00:02 1149kN >>>1.Qg6 Rxf7 2.Nxf7 Qe8 3.Rxf5 exf5 4.Nxh6+ Kh8 5.Nf7+ Kg8 >>> +- (1.52) Depth: 7/29 00:00:03 1550kN >>>1.Qg6 Rxf7 2.Qxf7+ Kh8 3.Qxf5 hxg5 4.Qxg5 Kg8 >>> +- (1.52) Depth: 8/29 00:00:04 2056kN >>>1.Qg6 Rxf7 2.Qxf7+ Kh8 3.Qxf5 hxg5 4.Qg6 Kg8 >>> +- (1.79) Depth: 8/29 00:00:04 2124kN >>>1.Qg6 Rxf7 2.Qxf7+ Kh8 3.Qxf5 exf5 4.Nf7+ Kg8 5.Nxd8 Rxd8 6.d5 >>> +- (1.83) Depth: 8/29 00:00:04 2246kN >>>1.Qg6 Rxf7 2.Qxf7+ Kh8 >>> +- (1.83) Depth: 9/29 00:00:06 3314kN >>>1.Qg6 Rxf7 2.Qxf7+ Kh8 >>> +- (1.83) Depth: 9/30 00:00:07 3671kN >>>1.Qg6 Rxf7 2.Qxf7+ Kh8 3.Qxf5 exf5 4.Nf7+ Kg8 5.Nxd8 Kh8 >>> +- (1.83) Depth: 10/37 00:00:12 6956kN >>>1.Qg6 Rxf7 2.Qxf7+ Kh8 3.Qxf5 exf5 4.Nf7+ Kg8 5.Nxd8 Rxd8 6.d5 Bc8 7.d6 >>> +- (2.10) Depth: 10/37 00:00:13 8042kN >>>1.Qg6 Rxf7 2.Qxf7+ Kh8 3.Qxf5 exf5 4.Nf7+ Kg8 5.Nxd8 Rxd8 6.g3 >>> +- (2.10) Depth: 10/37 00:00:15 8790kN >>>1.R1xf5 exf5 2.Rxg7+ Kxg7 3.Ne6+ Bxe6 4.Bxh6+ Kh8 5.Bg5+ Kg8 6.Bxd8 Rf6 >>> +- (2.63) Depth: 10/37 00:00:19 11004kN >>>1.R1xf5 exf5 2.Rxg7+ Kxg7 3.Ne6+ Bxe6 4.Bxh6+ Kh8 5.Bg5+ Kg8 6.Bxd8 Rf6 >>> +- (3.42) Depth: 10/37 00:00:22 12660kN >>>1.R1xf5 exf5 2.Rxg7+ Kxg7 3.Ne6+ Kh8 4.Nxd8 Raxd8 5.Bxh6 Rg8 6.Bg5+ Kg7 >>> +- (4.47) Depth: 10/37 00:00:24 13771kN >>>1.R1xf5 exf5 2.Rxg7+ Kxg7 3.Ne6+ Bxe6 4.Bxh6+ Kh8 5.Bg5+ Kg7 6.Qh6+ Kg8 7.Qxe6+ >>>Kg7 8.Bxd8 Raxd8 9.Qxc4 >>> +- (4.73) Depth: 10/37 00:00:28 16435kN >> >>Ruffian like movei finds Qg6 at depth 13 but later changes it's mind again to >>Rf1xf5 at the time of writing these lines ruffian has a fail high for Rxf5 at >>depth 15. >> >>It seems that the position is a bad test position. >> >>Uri > >The right reason to find R1xf5 is not 2.Rxg7+ but 2.Qg6 > >Here is ruffian's analysis after finishing depth 15. >depth=16 1/41(R1xf5) +6.27 R1xf5 exf5 Qg6 Rxf7 Qh7+ Kf8 d5 Ke8 Bc5 Ba4 e6 Qe7 >exf7+ Qxf7 Nxf7 Kxf7 Qxf5+ Kg8 Qe6+ Kh8 d6 > >Ruffian has another fail high a depth 16 for R1xf5 > >depth=17 1/41(R1xf5) +6.94 R1xf5 exf5 Qg6 Rxf7 Qh7+ Kf8 d5 Ke8 Bc5 Ba4 e6 Qe7 >Bxe7 Kxe7 Nxf7 Kf6 Kf2 f4 Kf3 >Nodes: 357800584 NPS: 637984 >Time: 00:09:20.83 > can't help it, Comet sticks to Rf1xf5 1.R1xf5 exf5 2.Qg6 Rxf7 3.Qh7+ Kf8 4.d5 Ke8 5.Bc5 Qe7 6.Bxe7 Kxe7 7.Qh8 +- (5.57) Depth: 12/39 00:02:21 105566kN >Uri
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