Author: Uri Blass
Date: 03:04:25 11/22/01
Go up one level in this thread
On November 21, 2001 at 18:05:47, Gian-Carlo Pascutto wrote: >On November 21, 2001 at 13:14:48, Peter Berger wrote: > >>[D]r1br4/1pq2p1p/p3pnkB/8/8/1BP2Q2/PP3PPb/R3R2K b - - 0 18 am Nd5 bm Nh5 ;id >>"Adams-Dreev,Wijk an Zee 1996" > >Sjeng: go >Middlegame phase. >Clearing hash... >Time for move : 60000000 > 2 286 227 1103 Bd6 ?? > 2 387 228 1509 Be5 ! > 2 434 230 3314 Nd5 ! > 2 434 232 5509 Nd5 Qg4+ Kxh6 Qh3+ Kg6 Qxh2 Qxh2+ Kxh2 > 3 417 238 11568 Nd5 Rad1 Kxh6 Qh3+ Kg6 Qxh2 Qxh2+ Kxh2 > 3 417 250 19000 Nd5 Rad1 Kxh6 Qh3+ Kg6 Qxh2 Qxh2+ Kxh2 > 4 396 262 36245 Nd5 Re4 Kxh6 Rh4+ Kg7 Bxd5 > 4 397 270 45483 Ng8 ! > 4 397 282 60721 Nh5 ! > 4 397 295 77776 Be5 ! > 4 397 312 96682 Nd5 Re4 Kxh6 Rh4+ Kg7 Bxd5 > 5 367 351 170118 Nd5 ?? > 5 284 425 302456 Nd5 Bc1 Bf4 Bxd5 Bxc1 Be4+ f5 Raxc1 fxe4 Rxe4 > 5 285 486 409997 e5 ! > 5 301 516 478384 e5 Bc2+ e4 Bxe4+ Nxe4 Rxe4 Bf5 Rh4 Bd6 > 6 271 521 486685 e5 ?? > 6 173 737 850439 e5 Bc2+ e4 Bxe4+ Nxe4 Rxe4 Bd6 Rh4 Qc5 Rf1 > 6 174 767 896098 Nh5 ! > 6 250 813 1007082 Nh5 Bc1 f5 Bxe6 Bf4 Bxc8 Rdxc8 Re6+ Kg5 Bxf4+ Nxf4 > 7 220 841 1052812 Nh5 ?? > 7 221 1094 1471378 Nd5 ! > 7 245 1418 2133912 Nd5 Bxd5 Rxd5 Be3 h5 g3 Rf5 Qg2 h4 Qxh2 hxg3 fxg3 > 8 215 1488 2267811 Nd5 ?? > 8 211 2920 4912057 Nd5 g3 Kxh6 Bxd5 Rg8 Qe3+ Rg5 Be4 f5 Bf3 > 8 211 3091 5364722 Nd5 g3 Kxh6 Bxd5 Rg8 Qe3+ Rg5 Be4 f5 Bf3 > 9 181 3537 6365151 Nd5 ?? > 9 182 9063 16175458 Nd5 !! > 9 194 10136 18001086 Nd5 Bxd5 Rxd5 Be3 Bd6 Qg4+ Kf6 Rad1 Qa5 Kg1 Rxd1 Rxd1 > 9 194 10138 18001129 Nd5 Bxd5 Rxd5 Be3 Bd6 Qg4+ Kf6 Rad1 Qa5 Kg1 Rxd1 Rxd1 >10 173 23930 43215604 Nd5 Rad1 f5 Qh3 Bf4 Bxf4 Qxf4 c4 Qxf2 cxd5 exd5 Re7 >10 173 30547 55030155 Nd5 Rad1 f5 Qh3 Bf4 Bxf4 Qxf4 c4 Qxf2 cxd5 exd5 Re7 >11 151 58528 101184152 Nd5 Rad1 f5 Qh3 Bf4 Bxf4 Qxf4 c4 Qxf2 cxd5 exd5 Qd3 >Qh4+ Kg1 >11 151 75790 131344004 Nd5 Rad1 f5 Qh3 Bf4 Bxf4 Qxf4 c4 Qxf2 cxd5 exd5 Qd3 >Qh4+ Kg1 >12 121 136719 236880168 Nd5 ?? >12 0 230591 401058200 Nd5 Bc1 f5 g3 Bxg3 Rg1 Nf6 Rxg3+ Ng4 Rxg4+ fxg4 >Qxg4+ Kf7 Qh5+ Kg7 Qg5+ Kh8 Qf6+ Kg8 Qg5+ Kh8 I see that sjeng only found a draw score for Nd5 and did not find the game move for white. If white is winning against Nd5 then the remaining question is how much time does sjeng need to find the win for white after Nd5(in the game white played Rad1 and not Bc1 in reply to Nd5). I will try to prove a positive score by letting yace to learn the game line but I see that yace cannot see a positive score even in the final position after 1...Nd5 2.Rad1 f5 3.Bc1 Bd6 4.Bxd5 exd5 5.Rxd5 Here is the result after more than 16 minutes of analysis: New position [D]r1br4/1pq4p/p2b2k1/3R1p2/8/2P2Q2/PP3PP1/2B1R2K b - - 0 1 Analysis by Yace 0.99.56: 5...Qxc3 6.Qxc3 +- (7.38) Depth: 1 00:00:04 5...Ra7 -+ (-1.57) Depth: 1 00:00:04 5...h6 -+ (-1.65) Depth: 1 00:00:04 5...Qg7 -+ (-1.66) Depth: 1 00:00:04 5...Qc6 -+ (-1.68) Depth: 1 00:00:04 5...Qc4 -+ (-1.75) Depth: 1 00:00:04 5...Bd7 -+ (-1.83) Depth: 1 00:00:04 5...Kg7 -+ (-2.00) Depth: 1 00:00:04 5...Kg7 6.Kg1 -+ (-1.77) Depth: 2 00:00:04 5...Kg7 6.Bg5 Rg8 -+ (-1.84) Depth: 3 00:00:04 5...Kg7 6.Bg5 Rg8 7.Kg1 -+ (-1.62) Depth: 4 00:00:04 5...Qc6 6.Rxf5 Bxf5 7.Kg1 -+ (-1.63) Depth: 4 00:00:04 5...Qc6 6.b3 Kg7 7.Kg1 -+ (-1.66) Depth: 4 00:00:04 5...Qc6 6.Qd3 a5 7.Bf4 Ra6 8.Bxd6 µ (-1.35) Depth: 5 00:00:05 74kN 5...Kg7 6.Bg5 Rg8 7.Bd8 Rxd8 8.Rxd6 µ (-1.36) Depth: 5 00:00:05 74kN 5...Kg7 6.Bf4 Bxf4 7.Rxd8 Qxd8 8.Qxf4 -+ (-1.57) Depth: 5 00:00:05 74kN 5...Qb6 6.Bf4 Bc5 7.g4 -+ (-1.58) Depth: 5 00:00:05 155kN 5...Qb6 6.Kg1 Kg7 7.Bg5 Rg8 -+ (-1.60) Depth: 5 00:00:05 155kN 5...Qb6 6.b3 Kg7 7.Bg5 Rg8 8.Kg1 -+ (-1.47) Depth: 6 00:00:06 538kN 5...Kg7 6.Bf4 Bxf4 7.Rxd8 Qxd8 8.Rd1 -+ (-1.48) Depth: 6 00:00:06 571kN 5...Kg7 6.Qd3 Bf4 7.Rxd8 Bxc1 -+ (-1.47) Depth: 6 00:00:06 571kN 5...Qb6 6.b3 Kg7 7.Bg5 Rg8 8.Kg1 -+ (-1.47) Depth: 6 00:00:06 571kN 5...a5 6.Qd3 Be7 7.Rxe7 Rxd5 8.Bf4 -+ (-1.48) Depth: 6 00:00:07 1018kN 5...a5 6.Qh3 Bf8 7.Bf4 Qb6 8.Be3 -+ (-1.48) Depth: 6 00:00:07 1018kN 5...a5 6.Red1 Ra6 7.Bf4 Kf6 8.Be5+ Kf7 9.Qh5+ Kg8 10.Bf6 -+ (-1.45) Depth: 7 00:00:09 1883kN 5...a5 6.Red1 Ra6 7.Bf4 Bxf4 8.Rxd8 Qc6 9.Qxc6+ Kf7 µ (-1.05) Depth: 8 00:00:12 3194kN 5...a5 6.Red1 Ra6 7.Bf4 Bxf4 8.Rxd8 Rd6 9.R8xd6+ Bxd6 10.Qd5 ³ (-0.50) Depth: 8 00:00:13 3612kN 5...Qb6 6.Qh3 h5 7.Rxd6+ Rxd6 8.Bf4 Kf7 9.Qxh5+ Rg6 10.Qh7+ Rg7 11.Re6 ³ (-0.51) Depth: 8 00:00:16 4947kN 5...Qb6 6.Qh3 h5 7.Qh4 Rh8 8.Red1 Bc7 9.Kg1 µ (-1.05) Depth: 8 00:00:17 5317kN 5...Rg8 6.Qd3 Bf4 7.Rd6+ Qxd6 8.Re5 Bxe5 9.Kg1 µ (-1.06) Depth: 8 00:00:22 7519kN 5...Rg8 6.Qe3 Kf7 7.Qh6 Bf8 8.Qxh7+ Rg7 9.Qh5+ Kg8 10.Bh6 Rh7 µ (-1.15) Depth: 8 00:00:24 8254kN 5...Rg8 6.Qe3 Kf7 7.Qh6 Bf8 8.Qxh7+ Rg7 9.Qh5+ Kg8 10.Bh6 Qc6 11.Bxg7 µ (-0.91) Depth: 9 00:00:37 13342kN 5...Rg8 6.Qe3 Kf7 7.Qh6 Bf8 8.Qxh7+ Rg7 9.Qh5+ Kg8 10.Bh6 Re7 11.Qg6+ Bg7 12.Rxe7 µ (-0.95) Depth: 10 00:01:29 34189kN 5...Rg8 6.Qe3 Kf7 7.Qh3 Qc6 8.Rxf5+ Bxf5 9.Qxf5+ Kg7 10.Be3 Raf8 11.Qg5+ Kh8 12.Bd4+ Be5 13.Bxe5+ Rf6 14.Bxf6+ Qxf6 15.Qxf6+ Rg7 ³ (-0.55) Depth: 11 00:02:24 55071kN 5...Rg8 6.Qe3 Kf7 7.Qh3 Qc6 8.Rxf5+ Bxf5 9.Qxf5+ Kg7 10.Be3 Kh8 11.Bd4+ Rg7 12.Bxg7+ Kxg7 13.Qg5+ Kf7 14.Qh5+ ³ (-0.26) Depth: 11 00:03:52 92855kN 5...Bf8 6.Bf4 Qxf4 7.Qxf4 Rxd5 8.Qg3+ Kf7 9.Kg1 ³ (-0.27) Depth: 11 00:06:55 170552kN 5...Bf8 6.Bf4 Qxf4 7.Qxf4 Rxd5 8.Qf3 Rd6 9.Re8 Rf6 10.Qg3+ Kf7 11.Qe5 Kg6 ³ (-0.69) Depth: 11 00:07:43 190316kN 5...Bf8 6.Bf4 Qxf4 7.Qxf4 Rxd5 8.Qc4 Rd8 9.Qg8+ Kh6 10.f4 Bg7 11.Qxd8 Be6 12.Rxe6+ Kh5 ³ (-0.29) Depth: 12 00:08:17 203467kN 5...Bf8 6.Bf4 Qxf4 7.Qxf4 Rxd5 8.Qc4 Rd8 9.Qg8+ Kf6 10.Qh8+ Kf7 11.Qxh7+ Bg7 12.Qh5+ Kf8 13.Kg1 Bd7 14.Qh7 = (-0.03) Depth: 12 00:11:16 277886kN (Blass, Tel-aviv 22.11.2001) >12 1 314449 538886661 Nh5 ! >12 49 457985 795312766 Nh5 Bc1 f5 Bxe6 Bxe6 Rxe6+ Nf6 g3 Bxg3 fxg3 Qd7 Qe2 >Rg8 Bf4 Qd5+ Kg1 >13 22 529894 907544241 Nh5 Bc1 Bf4 g4 Ng3+ Kg2 Bd2 Rg1 Bxc1 Raxc1 Rd2 Rc2 >Rxc2 Bxc2+ f5 Qxg3 e5 gxf5+ > >Athlon 1000 > >-- >GCP
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