Author: Anthony Cozzie
Date: 16:33:17 10/18/02
Go up one level in this thread
On October 18, 2002 at 12:10:06, Will Singleton wrote: >Adjusted position with the h7 pawn moved to h6, which prevents Ng5. >I would be surprised if any amateur program can find this, other >than Ruffian. > >[D]r1b1k2r/pp3pp1/4pb1p/2n5/3RB3/4BN2/PqP1QPPP/3R2K1 w kq - 0 1 Zappa does find it, although it needs 15(?!) ply and just over an hour. 1. Qc4 Bd7 + (-1.00) Depth: 5 00:00:00.26 31kN 1. Qc4 Nxe4 2. Bc1 Qb6 3. Rxe4 = (-0.59) Depth: 5 00:00:00.34 43kN 1. Qc4 Nxe4 2. Bxh6 Bxd4 - (-0.84) Depth: 6 00:00:00.64 86kN 1. Bc1 Qb6 2. Rd6 Qa5 3. Bd5 O-O = (-1.06) Depth: 6 00:00:00.90 135kN 1. Qc4 Nxe4 2. Rxe4 O-O 3. Qb3 Qxb3 4. cxb3 = (-0.94) Depth: 7 00:00:01.78 354kN 1. Qc4 Nxe4 2. Rxe4 O-O 3. Bc5 Re8 4. Qa4 b5 = (-1.15) Depth: 8 00:00:03.80 1016kN 1. Qc4 Nxe4 2. Rxe4 O-O 3. Qb3 Qc3 4. Ra4 Qxb3 5. cxb3 = (-0.94) Depth: 9 00:00:07.84 2402kN 1. Qc4 Nxe4 2. Rxe4 O-O 3. Bd4 Bxd4 4. Nxd4 b6 5. c3 Bb7 = (-1.17) Depth: 10 00:00:24.53 8151kN 1. Qc4 Nxe4 2. Rxe4 O-O 3. Bd4 Bxd4 4. Nxd4 Bd7 5. Qb3 Qxb3 6. cxb3 = (-0.94) Depth: 11 00:01:00.04 20233kN 1. a3 Nxe4 2. Rxe4 O-O 3. Ra4 a5 4. Bc5 Re8 5. Bd4 Bxd4 6. Nxd4 Bd7 = (-1.09) Depth: 12 00:04:00.73 82694kN 1. Qc4 Nxe4 2. Rxe4 Bd7 3. Bd4 Qb5 4. Qxb5 Bxb5 5. Bxf6 gxf6 6. Nd4 Bc4 7. a4 = (-1.03) Depth: 13 00:12:17.16 254172kN 1. Nd2 O-O 2. Rc4 Nxe4 3. Nxe4 b6 4. Bc1 Qe5 5. Qf3 Be7 6. Nc5 b5 7. Qxa8 bxc4 = (-1.02) Depth: 14 00:41:49.80 898284kN 1. Rd8 Bxd8 2. Bxc5 Bd7 3. Qd2 Ba4 4. Qd6 Qxa2 5. Bxb7 + (-0.77) Depth: 15 01:00:26.49 1320066kN 1. Rd8 Bxd8 2. Bxc5 Be7 3. Bd4 Qb4 4. Bxg7 Rg8 5. Bxh6 Bf6 6. a3 Qb6 7. Kf1 Bd7 8. Bh7 Rg4 = (-0.76) Depth: 15 01:46:42.98 2283563kN
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