Author: Uri Blass
Date: 17:34:16 07/19/04
Go up one level in this thread
On July 19, 2004 at 20:30:15, Uri Blass wrote: >On July 19, 2004 at 20:15:19, Uri Blass wrote: > >>On July 19, 2004 at 09:47:48, Dan Andersson wrote: >> >>>[D]2bq1b2/1p3k2/1r1p1p1p/pNpP1PpP/P1P3P1/6B1/1P5Q/2K1R3 w - - >>> This isn't a complete solution tree. But it contains almost all white manouvers >>>that make Re6 a kinch move. >>>1.Re6 Bxe6 2.fxe6+ Kg8 3.Qc2 Qe8 4.Be1 Qe7 5.Bc3 Bg7 6.Qg6 Rxb5 7.cxb5 b6 8. >>>Bxa5 >>> >>>MvH Dan Andersson >> >>The problem is that I suspect that there are many alternative winning moves. >>White can play for example 1.Re3 and later Re6 >> >>Here is my effort with yace to give winning tree that was not succesful. >> >>I could prove more than +2 after Kg8 >>After Ke8 Qc2 the score was only +0.97(maybe I did not give yace to search deep >>enough) and when I got back to the root position it cannot find 1.Re6 and >>prefers 1.Re3 or 1.b3 with evaluation of +1.0x for white. >> >>There are lines when white gets a won endgame when programs need a deep search >>to find the win. >> >> >> >> >>[Event "?"] >>[Site "?"] >>[Date "????.??.??"] >>[Round "?"] >>[White "New game"] >>[Black "?"] >>[Result "*"] >>[SetUp "1"] >>[FEN "2bq1b2/1p3k2/1r1p1p1p/pNpP1PpP/P1P3P1/6B1/1P5Q/2K1R3 w - - 0 1"] >>[PlyCount "23"] >> >>1. Re6 Bxe6 2. fxe6+ Kg8 (2... Ke8 3. Qc2) 3. Qc2 Qe7 4. Be1 Qg7 (4... Ra6 5. >>Qg6+ Qg7 (5... Bg7 6. Nc3 Ra8 (6... f5) 7. Ne4 b6 8. Bc3) 6. Qe8 Qe7 7. Qb8) ( >>4... Qh7 5. Bxa5) 5. Nc7 Rxb2 (5... Qxc7 6. Bxa5 Rxb2 (6... Qg7 7. Bxb6) 7. >>Bxc7 Rxc2+ 8. Kxc2 Be7 9. Kd3 Kf8 10. Ke4 Kg8 11. Kf5 Kg7 12. Bb6) (5... f5 6. >>gxf5) 6. Qxb2 Qxc7 7. Qxf6 b6 (7... Qe7 8. Qxe7 Bxe7 9. Bc3) (7... Qg7 8. Qxg7+ >>Bxg7 9. Bxa5) (7... Qh7 8. Bc3 Be7 9. Qg6+ Qxg6 10. hxg6) 8. Bc3 Qh7 9. Qg6+ >>Qxg6 10. hxg6 Be7 11. Kc2 Bd8 12. Kd3 * >> >> >> >>Uri > >Maybe Qc2 is not the right move after Ke8 and Be1 is better and yace can see >+1.1 for white some minutes after Fritz's suggestion (Be1). > >I also plan to analyze all the position of the original suite with movei at 40 >seconds per move and report results tommorow. > >I will try to compare movei at 40 seconds per move(Athlon64-3000) with the >commercial at 10 seconds per move(A3200) >After all movei is still significantly weaker than them so I am not sure if >movei can perform better. > > >New game >[D]3qkb2/1p6/1r1pPp1p/pNpP2pP/P1P3P1/8/1P5Q/2K1B3 b - - 0 1 > >Analysis by Yace 0.99.87: > >3...Rxb5 4.axb5 > ± (1.23) Depth: 1 00:00:00 >3...Qb8 4.Bxa5 > ² (0.52) Depth: 1 00:00:00 >3...Qa8 > ³ (-0.28) Depth: 1 00:00:00 >3...Qa8 > ³ (-0.28) Depth: 1 00:00:00 >3...Qa8 4.Nc7+ Kd8 5.Nxa8 > +- (7.85) Depth: 2 00:00:00 >3...Qa8 4.Nc7+ Ke7 5.Nxa8 > +- (9.16) Depth: 2 00:00:00 >3...Qa8 4.Nc7+ Ke7 > +- (9.16) Depth: 2 00:00:00 >3...Qb8 4.e7 > +- (5.41) Depth: 2 00:00:00 >3...Qb8 4.Bxa5 > ² (0.52) Depth: 2 00:00:00 >3...Qe7 4.Qe2 > ² (0.31) Depth: 2 00:00:00 >3...Qe7 4.Bxa5 > = (0.14) Depth: 2 00:00:00 >3...Ra6 4.Qe5 > = (-0.01) Depth: 2 00:00:00 >3...Ra6 4.Kd1 > = (-0.05) Depth: 2 00:00:00 >3...Ra6 4.Kd1 > = (-0.05) Depth: 2 00:00:00 >3...Ra6 4.Kd1 Qe7 > ³ (-0.43) Depth: 3 00:00:00 >3...Ra6 4.Kd1 Qe7 > ³ (-0.43) Depth: 3 00:00:00 >3...Ra6 4.Qf2 Qe7 5.Qf5 > ³ (-0.30) Depth: 4 00:00:00 >3...Ra6 4.Qf2 Qe7 5.Qf5 > ³ (-0.30) Depth: 4 00:00:00 >3...Ra6 4.Qc2 Qe7 5.Qg6+ Kd8 6.Kd1 > ³ (-0.32) Depth: 5 00:00:00 >3...Ra6 4.Qc2 Qe7 5.Qg6+ Kd8 6.Kd1 > ³ (-0.32) Depth: 5 00:00:00 >3...Ra6 4.Qc2 Qe7 5.Qg6+ Kd8 6.Bg3 Rb6 > = (-0.25) Depth: 6/16 00:00:00 32kN >3...Ra6 4.Qc2 Qe7 5.Qg6+ Kd8 6.Bg3 Rb6 > = (-0.25) Depth: 6/20 00:00:01 35kN >3...Ra6 4.Qc2 Qe7 5.Qg6+ Kd8 6.Bg3 Rb6 7.Nxd6 Rxd6 8.Bxd6 Qxd6 9.Qxf6+ Qe7 > ³ (-0.30) Depth: 7/20 00:00:01 72kN >3...Ra6 4.Qc2 Qe7 5.Qg6+ Kd8 6.Bg3 Rb6 7.Nxd6 Rxd6 8.Bxd6 Qxd6 9.Qxf6+ Qe7 > ³ (-0.30) Depth: 7/23 00:00:01 78kN >3...Ra6 4.Qc2 Qe7 5.Qg6+ Kd8 6.Bg3 Kc8 7.Kd1 Kd8 8.Nxd6 Rxd6 > = (-0.17) Depth: 8/23 00:00:01 185kN >3...Ra6 4.Qc2 Qe7 5.Qg6+ Kd8 6.Bg3 Kc8 7.Kd1 Kd8 8.Nxd6 Rxd6 > = (-0.17) Depth: 8/23 00:00:01 202kN >3...Ra6 4.Qc2 Qe7 5.Qg6+ Kd8 6.Bg3 Kc8 7.Kd1 Rb6 8.Qf7 > = (-0.05) Depth: 9/23 00:00:01 426kN >3...Ra6 4.Qc2 Qe7 5.Qg6+ Kd8 6.Bg3 Kc8 7.Kd1 Rb6 8.Qf7 > = (-0.05) Depth: 9/26 00:00:01 455kN >3...Ra6 4.Qc2 Qe7 5.Qg6+ Kd8 6.Bg3 Kc8 7.Kd1 Rb6 8.Nxd6+ Rxd6 9.Bxd6 Qxd6 >10.Qxf6 > = (-0.11) Depth: 10/26 00:00:01 1075kN >3...Ra6 4.Qc2 Qe7 5.Qg6+ Kd8 6.Bg3 Kc8 7.Kd1 Rb6 8.Nxd6+ Rxd6 9.Bxd6 Qxd6 >10.Qxf6 > = (-0.11) Depth: 10/29 00:00:02 1142kN >3...Ra6 4.Qc2 Qe7 5.Qg6+ Kd8 6.Bg3 Kc8 7.Kd1 Rb6 8.Be1 Ra6 9.Bg3 Rb6 10.Be1 Ra6 >11.Bg3 > = (0.00) Depth: 11/32 00:00:02 2619kN >3...Ra6 4.Qc2 Qe7 5.Qg6+ Kd8 6.Bg3 Kc8 7.Kd1 Rb6 8.Be1 Ra6 9.Bg3 Rb6 10.Be1 Ra6 >11.Bg3 > = (0.00) Depth: 11/32 00:00:02 2830kN >3...Ra6 4.Qc2 Qe7 5.Qg6+ Kd8 6.Bg3 Rb6 7.Kd1 Kc8 8.Be1 Ra6 9.Bg3 Rb6 10.Be1 Ra6 >11.Bg3 Rb6 > = (0.00) Depth: 12/36 00:00:04 6484kN >3...Ra6 4.Qc2 Qe7 5.Qg6+ Kd8 6.Bg3 Rb6 7.Kd1 Kc8 8.Be1 Ra6 9.Bg3 Rb6 10.Be1 Ra6 >11.Bg3 Rb6 > = (0.00) Depth: 12/36 00:00:05 6940kN >3...Ra6 4.Qc2 Qe7 5.Qg6+ Kd8 6.Bc3 Bg7 7.Qh7 Qf8 8.Kd1 Ke7 9.Qf5 Qe8 10.b3 > = (0.07) Depth: 13/39 00:00:15 20698kN >3...Ra6 4.Qc2 Qe7 5.Qg6+ Kd8 6.Bc3 Bg7 7.Qh7 Qf8 8.Kd1 Ke7 9.Qf5 Qe8 10.b3 > = (0.07) Depth: 13/39 00:00:16 21915kN >3...Ra6 4.Nc3 Qe7 5.Ne4 Kd8 6.Qf2 f5 7.gxf5 Bg7 8.f6 Bxf6 9.Nxf6 Qxf6 10.Qxf6+ >Kc8 > ² (0.47) Depth: 14/45 00:00:44 54827kN >3...Ra6 4.Nc3 > ² (0.47) Depth: 14/45 00:00:48 60752kN >3...Ra6 4.Nc3 > ² (0.47) Depth: 14/45 00:00:53 65577kN >3...Ra6 4.Qc2 Qe7 5.Qg6+ Kd8 6.Nc3 Qg7 7.Ne4 f5 8.Qxf5 Qe7 9.Qf6 Qxf6 10.Nxf6 >Bg7 11.Ng8 Rb6 12.Bxa5 > ± (0.76) Depth: 15/51 00:02:44 184620kN >3...Ra6 4.Qc2 Qe7 5.Qg6+ Kd8 6.Nc3 Qg7 7.Ne4 f5 8.Qxf5 Qe7 9.Qf6 Qxf6 10.Nxf6 >Bg7 11.Ng8 Rb6 12.Bxa5 > ± (0.76) Depth: 15/51 00:02:52 193207kN >3...Ra6 4.Qc2 Qe7 5.Qg6+ Kd8 6.Nc3 Qe8 7.Qxe8+ Kxe8 8.Ne4 Be7 9.Ng3 Bf8 10.Nf5 >Rb6 11.Kc2 Ra6 12.Bc3 Be7 13.Nxh6 > ± (1.10) Depth: 16/57 00:05:46 383179kN >3...Ra6 4.Qc2 Qe7 5.Qg6+ Kd8 6.Nc3 Qe8 7.Qxe8+ Kxe8 8.Ne4 Be7 9.Ng3 Bf8 10.Nf5 >Rb6 11.Kc2 Ra6 12.Bc3 Be7 13.Nxh6 > ± (1.10) Depth: 16/57 00:07:07 469071kN > >(, MyTown 20.07.2004) > >Uri It seems to be only tranposition of moves and Be1 Ra6 Qc2 Qe7 is the same as Qc2 Qe7(forced) Be1 Ra6 Uri
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