Author: John Merlino
Date: 20:58:53 07/08/02
Go up one level in this thread
On July 08, 2002 at 23:47:08, Jon Dart wrote: >Yace played the surprising d6! here against Arasan: > >[D] r1n2rk1/pppqppb1/6p1/1N1P4/4P3/1Q2B1R1/PP2KP1P/3R4 w - - > >Most versions of Arasan can find this pretty quickly. > >Curiously, Crafty does not select it, even after 20 minutes on a PIII-733: > 6 0.53 0.02 1. Bd4 Bf6 2. Rc3 Qg4+ 3. Kf1 Qxe4 > 4. Bxf6 exf6 5. Rxc7 > 6-> 0.66 0.02 1. Bd4 Bf6 2. Rc3 Qg4+ 3. Kf1 Qxe4 > 4. Bxf6 exf6 5. Rxc7 > 7 1.17 0.10 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7 > 4. Qd3 Rfc8 5. Rdg1 > 7-> 1.55 0.10 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7 > 4. Qd3 Rfc8 5. Rdg1 > 8 2.28 -0.06 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7 > 4. Qc4 e5 5. Rdg1 Rac8 > 8 5.77 -0.04 1. Nd4 Nb6 2. Qc2 Be5 3. f4 Bg7 4. > Kf1 Rad8 > 8-> 6.78 -0.04 1. Nd4 Nb6 2. Qc2 Be5 3. f4 Bg7 4. > Kf1 Rad8 > 9 9.91 -0.03 1. Nd4 Nb6 2. Qc2 Be5 3. f4 Bxd4 4. > Bxd4 e6 5. dxe6 Qxe6 6. Kf1 > 9-> 12.96 -0.03 1. Nd4 Nb6 2. Qc2 Be5 3. f4 Bxd4 4. > Bxd4 e6 5. dxe6 Qxe6 6. Kf1 > 10 35.70 -0.15 1. Nd4 Nd6 2. Qd3 Qa4 3. a3 Be5 4. > Rg5 Bf6 5. Rg4 Qd7 > 10 47.65 -0.06 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7 > 4. Qc3+ Kg8 5. Rh3 Qg4+ 6. Qf3 Qg5 > 7. Rg3 Qe5 > (2) 10-> 1:01 -0.06 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7 > 4. Qc3+ Kg8 5. Rh3 Qg4+ 6. Qf3 Qg5 > 7. Rg3 Qe5 > 11 1:14 0.05 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7 > 4. Rc1 Rh8 5. h3 Rh5 6. Qc4 e6 7. dxe6 > fxe6 > (2) 11-> 1:38 0.05 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7 > 4. Rc1 Rh8 5. h3 Rh5 6. Qc4 e6 7. dxe6 > fxe6 > 12 2:09 -0.04 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7 > 4. Qc3+ Kg8 5. Rc1 Qb5+ 6. Kf3 e6 7. > dxe6 fxe6+ 8. Kg2 Qh5 9. Rg1 > (3) 12-> 9:41 -0.04 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7 > 4. Qc3+ Kg8 5. Rc1 Qb5+ 6. Kf3 e6 7. > dxe6 fxe6+ 8. Kg2 Qh5 9. Rg1 > (2) 13 12:00 -0.03 1. Bd4 Nd6 2. Nxd6 cxd6 3. Kf1 Bxd4 > 4. Rxd4 Rac8 5. Kg2 b5 6. Rd2 Rfe8 > 7. Qf3 e5 8. dxe6 Qxe6 > >But if I give Crafty the position after d6, it does realize that White is >better: > 6 0.68 0.41 1. ... c6 2. dxe7 Qxe7 3. Nc3 Nd6 4. > Rxg6 Nxe4 5. Kd3 Nxc3 6. bxc3 > 6 0.83 0.09 1. ... Nxd6 2. Nxd6 cxd6 3. Rxg6 e6 > 4. Rg3 Rfc8 > (2) 6-> 0.97 0.09 1. ... Nxd6 2. Nxd6 cxd6 3. Rxg6 e6 > 4. Rg3 Rfc8 > 7 1.03 -- 1. ... Nxd6 > 7 1.27 0.61 1. ... Nxd6 2. Nxd6 cxd6 3. Rxg6 Kh8 > 4. Rg5 Bf6 5. Qb5 > 7 2.32 0.56 1. ... cxd6 2. Rxg6 Kh7 3. Rg5 Bh6 > 4. Rg3 Bxe3 5. Kxe3 > (2) 7-> 2.53 0.56 1. ... cxd6 2. Rxg6 Kh7 3. Rg5 Bh6 > 4. Rg3 Bxe3 5. Kxe3 > 8 3.13 0.66 1. ... cxd6 2. Rxg6 Kh7 3. Rgg1 Qc6 > 4. Rd5 Be5 5. h4 > 8 4.11 0.48 1. ... Nxd6 2. Nxd6 cxd6 3. Rxg6 e6 > 4. Rg5 f6 5. Qb5 Qc7 > (2) 8-> 5.22 0.48 1. ... Nxd6 2. Nxd6 cxd6 3. Rxg6 e6 > 4. Rg5 f6 5. Qb5 Qc7 > 9 6.59 0.76 1. ... Nxd6 2. Nxd6 cxd6 3. Rxg6 Kh7 > 4. Rg5 Bh6 5. Qb5 Qxb5+ 6. Rxb5 Bxe3 > 7. Kxe3 > (2) 9-> 10.96 0.76 1. ... Nxd6 2. Nxd6 cxd6 3. Rxg6 Kh7 > 4. Rg5 Bh6 5. Qb5 Qxb5+ 6. Rxb5 Bxe3 > 7. Kxe3 > 10 14.27 1.10 1. ... Nxd6 2. Nxd6 cxd6 3. Rxg6 Kh7 > 4. Rg5 f6 5. Rh5+ Kg6 6. Rb5 Qg4+ 7. > f3 Qg2+ 8. Kd3 > 10 26.64 0.93 1. ... cxd6 2. Rxg6 Kh7 3. Rg5 Bh6 > 4. Rf5 Bg7 5. Qc2 Qe6 6. Rdd5 > 10-> 31.90 0.93 1. ... cxd6 2. Rxg6 Kh7 3. Rg5 Bh6 > 4. Rf5 Bg7 5. Qc2 Qe6 6. Rdd5 > 11 52.74 1.24 1. ... cxd6 2. Rxg6 Kh8 3. Rg3 a6 4. > Nd4 a5 5. Qd5 Be5 6. f4 Nb6 > 11 1:08 1.09 1. ... Nxd6 2. Nxd6 cxd6 3. Rxg6 Kh7 > 4. Rgg1 f5 5. Bd4 Bh6 6. Qg3 Qb5+ 7. > Kf3 fxe4+ 8. Kg2 > (2) 11-> 1:37 1.09 1. ... Nxd6 2. Nxd6 cxd6 3. Rxg6 Kh7 > 4. Rgg1 f5 5. Bd4 Bh6 6. Qg3 Qb5+ 7. > Kf3 fxe4+ 8. Kg2 > 12 2:10 1.41 1. ... Nxd6 2. Nxd6 cxd6 3. Rxg6 Kh7 > 4. Rg5 Bh6 5. Rf5 Qe6 6. Qxe6 fxe6 > 7. Rxf8 Bxf8 8. h4 > (2) 12-> 3:43 1.41 1. ... Nxd6 2. Nxd6 cxd6 3. Rxg6 Kh7 > 4. Rg5 Bh6 5. Rf5 Qe6 6. Qxe6 fxe6 > 7. Rxf8 Bxf8 8. h4 Chessmaster 9000 on a humble PIII-600 takes 4:27 to select d6: Time Depth Score Positions Moves 0:00 1/3 0.50 2248 1.f3 a6 2.Na3 Nd6 0:00 1/3 0.53 2414 1.Bd4 Bxd4 2.Nxd4 Nd6 0:00 1/4 0.57 4418 1.Bd4 Nd6 2.Bxg7 Kxg7 3.Nxd6 cxd6 0:00 1/4 0.59 11691 1.d6 c6 2.Na3 Nxd6 3.Rxg6 0:00 1/5 0.34 19874 1.d6 Nxd6 2.Nxd6 cxd6 3.Rxg6 Qh3 4.Rxg7+ Kxg7 5.Qxb7 0:00 1/5 0.58 24333 1.Bd4 Bxd4 2.Nxd4 Nd6 3.f3 0:01 1/6 0.59 58847 1.Bd4 Nd6 2.Bxg7 Kxg7 3.Nxd6 cxd6 4.Qc3+ f6 5.f4 0:02 1/7 0.51 130774 1.Bd4 Nd6 2.Bxg7 Kxg7 3.Nxd6 cxd6 4.Qd3 Qa4 0:04 1/8 0.37 287767 1.Bd4 Nd6 2.Bxg7 Kxg7 3.Nxd6 cxd6 4.Qc3+ f6 5.Rdg1 Qb5+ 6.Ke1 0:06 1/8 0.51 430489 1.f3 Nd6 2.Nxa7 Be5 3.Rg4 Bg7 4.Rc1 Rfd8 0:19 1/9 0.45 1287312 1.f3 a6 2.Nd4 Nd6 3.Rc1 Be5 4.Rg4 Bxh2 5.Qc3 Nb5 6.Nxb5 Qxb5+ 7.Kf2 0:48 1/10 0.49 3391465 1.f3 Nd6 2.Nxa7 Rfe8 3.a3 Be5 4.Rg4 Bxh2 5.Qc3 Qa4 6.Rg2 2:57 2/11 0.45 12225517 1.f3 Nd6 2.Nd4 Rfb8 3.Qc2 Rc8 4.Kf1 Bxd4 5.Bxd4 c5 6.dxc6ep Qxc6 7.Qxc6 Rxc6 4:27 2/11 0.73 18889982 1.d6 Nxd6 2.Nxd6 cxd6 3.Rxg6 Kh8 4.Rg5 Qc6 5.Rdg1 Bh6 6.Rh5 jm
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