Author: Uri Blass
Date: 05:08:39 01/11/04
Go up one level in this thread
On January 11, 2004 at 07:46:09, Kurt Utzinger wrote: >On January 11, 2004 at 05:43:04, Jouni Uski wrote: > >>[D]r1r3k1/4bp1p/1qp1b1p1/1p1n4/3PB3/P5N1/1BQ2PPP/R3R1K1 w - - 0 21 >> >>In this position Ruffian plays almost instantly Bxg6. Is this real sacrifice? >>Is it correct? Actually Ruffian lost this game against Fritz... >> >>Jouni >> >>PS: I hope, that next Ruffian update gives the missing 70 points from promised >>100 over 1.0.1 :-) > > > Hi Jouni > I think that Bxg6 is a most interesting sacrifice that > should at least be good enough for a draw. > Kurt I agree but Re1 is probably not the right move to continue and Yace can see a draw score for 4.Ne4(I chose yace because based on experience it tends to underestimate king safety and if even it can see a draw and learn a draw score in the root position then white probably has a draw). New game r1r2k2/4b3/1qp1p1Q1/1p1n4/3PN3/P7/1B3PPP/R5K1 b - - 0 1 Analysis by Yace Paderborn: 4...Bxa3 5.Rxa3 = (0.11) Depth: 1 00:00:00 4...Bh4 5.Qxe6 -+ (-1.64) Depth: 1 00:00:00 4...Rd8 5.Qxe6 -+ (-1.76) Depth: 1 00:00:00 4...Re8 5.Qxe6 Bxa3 6.Bxa3+ Rxa3 -+ (-2.57) Depth: 1 00:00:00 4...Re8 5.Qxe6 Bxa3 6.Bxa3+ Rxa3 -+ (-2.57) Depth: 1 00:00:00 4...Re8 5.Qh6+ Kf7 -+ (-2.54) Depth: 2 00:00:00 4...Re8 5.Qh6+ Kf7 -+ (-2.54) Depth: 2 00:00:00 4...Re8 5.Qh6+ Kg8 6.Qxe6+ Kg7 7.Qe5+ Kg8 -+ (-2.00) Depth: 3 00:00:00 4...Re8 5.Qh6+ Kg8 6.Qg6+ Kf8 = (0.00) Depth: 3 00:00:00 4...Re8 5.Qh6+ Kg8 6.Qg6+ Kf8 7.Qh6+ Kg8 8.Qg6+ Kf8 = (0.00) Depth: 3 00:00:00 4...Rd8 5.Qxe6 = (-0.01) Depth: 3 00:00:00 4...Rd8 5.Qxe6 Ke8 -+ (-2.21) Depth: 3 00:00:00 4...c5 5.Rb1 -+ (-2.22) Depth: 3 00:00:00 4...c5 5.dxc5 Bxc5 6.Nxc5 -+ (-2.31) Depth: 3 00:00:00 4...Nc7 5.Rc1 -+ (-2.32) Depth: 3 00:00:00 4...Nc7 5.Ng5 Re8 -+ (-2.55) Depth: 3 00:00:00 4...Nc7 5.Ng5 Re8 -+ (-2.55) Depth: 3 00:00:00 4...Nc7 5.Ng5 Bxg5 6.Qxg5 -+ (-2.40) Depth: 4 00:00:00 4...Nc7 5.Ng5 Bxg5 6.Qxg5 -+ (-2.40) Depth: 4 00:00:00 4...Nc7 5.d5 Bxa3 6.Bxa3+ b4 -+ (-2.00) Depth: 5 00:00:00 4...Nc7 5.d5 Bxa3 6.Bxa3+ b4 µ (-1.00) Depth: 5 00:00:00 4...Nc7 5.d5 e5 6.d6 Bxd6 7.Nxd6 Rxa3 µ (-1.00) Depth: 5 00:00:00 4...c5 5.Qh6+ Ke8 6.Qh5+ Kd7 7.Nf6+ Nxf6 8.Rd1 µ (-1.01) Depth: 5 00:00:00 4...c5 5.dxc5 Bxc5 6.Nxc5 Rxc5 7.Rd1 -+ (-2.09) Depth: 5 00:00:00 4...c5 5.dxc5 Bxc5 6.Nxc5 Rxc5 7.Rd1 -+ (-2.09) Depth: 5 00:00:00 4...c5 5.dxc5 Bxc5 6.Nxc5 Rxa3 7.Bxa3 e5 -+ (-1.69) Depth: 6/19 00:00:00 145kN 4...c5 5.Bc1 Bd6 6.Bh6+ Ke7 7.Bg5+ Kd7 8.Qf7+ Ne7 9.dxc5 Rxc5 µ (-1.06) Depth: 6/19 00:00:01 352kN 4...e5 5.Qh6+ Ke8 6.Nd6+ Bxd6 7.Qg7 Ne7 8.dxe5 µ (-1.07) Depth: 6/24 00:00:01 600kN 4...e5 5.dxe5 Rd8 6.Qf5+ Ke8 7.Qh5+ Kd7 8.Qh3+ Kc7 9.Rd1 µ (-1.30) Depth: 6/24 00:00:02 680kN 4...Rcb8 5.Qh6+ Ke8 6.Nd6+ Bxd6 7.Qxe6+ Ne7 8.Re1 Bxh2+ 9.Kxh2 µ (-1.31) Depth: 6/24 00:00:02 817kN 4...Rcb8 5.Bc1 Bb4 6.Bb2 Ba5 7.Qxe6 Re8 -+ (-1.72) Depth: 6/24 00:00:03 973kN 4...Qb8 5.Qxe6 Nf4 6.Qh6+ Ke8 7.Nf6+ Bxf6 8.Rb1 -+ (-1.73) Depth: 6/24 00:00:03 1193kN 4...Qb8 5.Qxe6 Nf4 6.Qh6+ Ke8 7.Qh8+ Kd7 8.Nf6+ Bxf6 9.Qxf6 -+ (-1.93) Depth: 6/24 00:00:03 1224kN 4...Qb8 5.Qxe6 Nf4 6.Qh6+ Ke8 7.Qh8+ Kd7 8.Nf6+ Bxf6 9.Qxf6 -+ (-1.93) Depth: 6/24 00:00:04 1293kN 4...Qb8 5.Bc1 Bd6 6.Bh6+ Ke7 7.Bg5+ Kd7 8.Qf7+ Ne7 9.Nc5+ Kd8 10.Bxe7+ Bxe7 11.Qg8+ Kc7 12.Qxe6 Bxc5 -+ (-1.60) Depth: 7/24 00:00:05 1829kN 4...Qa5 5.Qxe6 -+ (-1.61) Depth: 7/26 00:00:08 2942kN 4...Qa5 5.Qxe6 b4 6.a4 b3 7.Qh6+ Ke8 8.Qh8+ Kf7 9.Qe5 -+ (-1.68) Depth: 7/26 00:00:08 3111kN 4...Qa5 5.Qxe6 b4 6.a4 b3 7.Qh6+ Ke8 8.Qh8+ Kf7 9.Qe5 -+ (-1.68) Depth: 7/26 00:00:09 3201kN 4...Qa5 5.Qxe6 Qb6 6.Rc1 Qb7 7.Nc5 Qa7 8.Rc2 -+ (-1.50) Depth: 8/26 00:00:12 4472kN 4...Qa5 5.Qxe6 Qb6 6.Rc1 Qb7 7.Nc5 Qa7 8.Rc2 -+ (-1.50) Depth: 8/28 00:00:22 8323kN 4...Qa5 5.Bc3 Nxc3 6.Nf6 Bxa3 7.Qg8+ Ke7 8.Qg7+ Kd8 9.Rxa3 Qc7 10.Qxc7+ Rxc7 11.Rxa8+ Ke7 µ (-1.10) Depth: 9/28 00:00:29 11054kN 4...Qa5 5.Bc3 Nxc3 6.Nf6 Ne2+ 7.Kh1 Qe1+ 8.Rxe1 Bb4 9.axb4 Ra1 = (-0.10) Depth: 9/28 00:00:31 11658kN 4...Qa5 5.Bc3 Nxc3 6.Nf6 Ne2+ 7.Kh1 Bxf6 8.Qxf6+ Ke8 9.Qxe6+ Kd8 10.Qd6+ Ke8 11.Qe6+ Kd8 12.Qd6+ Ke8 13.Qe6+ = (0.00) Depth: 9/28 00:00:31 11798kN 4...Qa5 5.Bc3 Nxc3 6.Nf6 Ne2+ 7.Kh1 Bxf6 8.Qxf6+ Ke8 9.Qxe6+ Kd8 10.Qd6+ Ke8 11.Qe6+ Kd8 12.Qd6+ Ke8 13.Qe6+ = (0.00) Depth: 9/36 00:01:19 30402kN 4...Qa5 5.Bc3 Nxc3 6.Nf6 Ne2+ 7.Kh1 Bxf6 8.Qxf6+ Ke8 9.Qxe6+ Kd8 10.Qd6+ Ke8 11.Qe6+ = (0.00) Depth: 10/36 00:01:24 32328kN (Blass, Tel-Aviv 11.01.2004) Uri
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