Author: Bahram Namjou
Date: 15:45:33 08/17/05
Go up one level in this thread
It is ultimatley a winning. The pawn on d3 will be queen, and also it doesn't make a big difference between 4. RF6 or 4. NxH6... On August 17, 2005 at 04:14:04, Darrel Briley wrote: >On August 16, 2005 at 23:28:08, Bahram Namjou wrote: > >>Yes...It is supposed to be d3 but after 2 minutes shredder found the winning >>road: >>43...g4!! >> >On my system it takes a bit less time to find the move. Shredder doesn't see it >as winning at all, even after 6:21 and 19 ply. > >New game, >8/5R2/p4N1b/1b2P1p1/1P1p3p/Pk3P1P/2r3P1/6BK b - - 0 1 > >Analysis by Shredder 9 UCI: AthlonXP 2600+, 512Mb Hash > >1...Kxa3 > +- (1.69) Depth: 1/2 00:00:00 >1...Kxa3 2.Bxd4 Kxb4 > +- (1.95) Depth: 1/3 00:00:00 >1...d3 > ² (0.47) Depth: 1/3 00:00:00 >1...d3 > ² (0.47) Depth: 1/3 00:00:00 >1...d3 2.Rh7 > ² (0.27) Depth: 2/4 00:00:00 >1...d3 2.Ng4 d2 3.Ne3 > ² (0.39) Depth: 3/7 00:00:00 >1...d3 2.Ng4 > = (0.01) Depth: 4/8 00:00:00 >1...d3 2.Ng4 > ³ (-0.49) Depth: 4/8 00:00:00 >1...d3 2.Be3 Re2 > ³ (-0.49) Depth: 4/8 00:00:00 >1...d3 2.Be3 > µ (-0.74) Depth: 5/9 00:00:00 >1...d3 2.Be3 Re2 3.Ng4 Bc4 > µ (-0.74) Depth: 5/9 00:00:00 >1...d3 2.Be3 Re2 3.Ng4 Be8 4.Rc7 > ³ (-0.53) Depth: 6/10 00:00:00 6kN >1...d3 2.Be3 > ³ (-0.28) Depth: 7/12 00:00:00 10kN >1...d3 2.Be3 > = (0.22) Depth: 7/12 00:00:00 11kN >1...d3 2.Be3 Kxa3 3.Ng4 Be8 4.Re7 > ² (0.28) Depth: 7/17 00:00:00 20kN >1...d3 2.Be3 > ² (0.53) Depth: 8/17 00:00:01 37kN >1...d3 2.Be3 Kxa3 3.Ng4 Kxb4 4.Nxh6 d2 5.Bxd2+ Rxd2 > ² (0.53) Depth: 8/17 00:00:01 43kN >1...d3 2.Be3 > ² (0.28) Depth: 9/17 00:00:02 92kN >1...d3 2.Be3 > = (-0.22) Depth: 9/17 00:00:03 109kN >1...d3 2.Ne4 d2 3.Nxd2+ Rxd2 4.Rh7 Bf8 5.Rf7 Rd8 6.Be3 Rd1+ 7.Kh2 > µ (-0.98) Depth: 9/18 00:00:03 188kN >1...d3 2.Ne4 d2 3.Nxd2+ Rxd2 4.Rh7 Bf8 5.Rf7 Rd8 6.Be3 Bh6 7.Rf6 > µ (-1.02) Depth: 10/18 00:00:04 273kN >1...d3 2.Ne4 d2 3.Nxd2+ Rxd2 4.Rh7 Bf8 5.Rf7 Rd8 6.Be3 Bh6 7.Rh7 Rd1+ 8.Kh2 > µ (-0.92) Depth: 11/25 00:00:05 429kN >1...d3 2.Ne4 > ³ (-0.67) Depth: 12/25 00:00:06 597kN >1...d3 2.Ne4 d2 3.Nxd2+ Rxd2 4.Rh7 Bf8 5.Rf7 Rd8 6.Be3 Re8 7.Bxg5 Kxa3 8.Bxh4 > ³ (-0.49) Depth: 12/25 00:00:06 762kN >1...d3 2.Be3 Re2 3.Ng4 Kxa3 4.e6 Kxb4 5.Rh7 Bf8 6.e7 Bxe7 7.Rxe7 > ³ (-0.34) Depth: 13/25 00:00:07 1668kN >1...d3 2.Be3 > ³ (-0.59) Depth: 14/26 00:00:09 2698kN >1...d3 2.Be3 Re2 3.Ng4 Kxa3 4.e6 Kxb4 5.Rh7 Bf8 6.e7 Bxe7 7.Rxe7 Kc3 > ³ (-0.64) Depth: 14/26 00:00:09 2879kN >1...d3 2.Be3 > ³ (-0.39) Depth: 15/30 00:00:10 3810kN >1...d3 2.Be3 Re2 3.Ng4 Kxa3 4.e6 Kxb4 5.Rh7 Bf8 6.e7 Bxe7 7.Rxe7 Re1+ 8.Kh2 Kc3 > = (-0.07) Depth: 15/30 00:00:10 4563kN >1...d3 2.Be3 d2 3.Bxd2 Rxd2 4.Ng4 Bc4 5.Nxh6 Bxf7 6.Nxf7 Kxa3 7.Nxg5 Kxb4 8.Ne4 >Rd8 9.Nf6 a5 > = (-0.08) Depth: 16/30 00:00:17 8433kN >1...d3 2.Be3 Re2 3.Ng4 Kxa3 4.Kh2 Kxb4 5.Bc1 Rc2 6.Be3 Re2 7.Bc1 Rc2 8.Be3 Re2 > = (0.00) Depth: 17/33 00:00:29 15043kN >1...d3 2.Be3 > = (-0.25) Depth: 18/43 00:00:59 30314kN >1...d3 2.Be3 d2 3.Bxd2 Rxd2 4.Ng4 Bc4 5.Nxh6 Bxf7 6.Nxf7 Kxa3 7.Nxg5 > = (-0.25) Depth: 18/43 00:01:01 31266kN >1...g4 > ³ (-0.26) Depth: 18/43 00:01:34 46447kN >1...g4 > ³ (-0.61) Depth: 18/43 00:01:55 56063kN >1...g4 2.a4 Bxa4 3.Nxg4 d3 4.Rf6 d2 5.Rd6 Bf8 6.Rd3+ Kxb4 7.Ne3 Ra2 8.Rd4+ Kc3 >9.Rc4+ Kd3 > µ (-1.20) Depth: 18/46 00:05:05 149850kN >1...g4 2.a4 > -+ (-1.45) Depth: 19/46 00:06:21 185546kN > >(, 17.08.2005) > > > DB > > > > >> 42.dxe5 d4 0.00/20 0 43.f3 g4 -1.25/17 46 44.Nxg4 d3 -2.22/20 1:41 >>45.Rf6 d2 -3.18/20 1:31 46.Rd6 Bf4 -3.45/20 2 47.Nf2 Rc1 -4.20/17 1:08 >>48.Rd5 Rf1 white resigns (Lag: Av=0.30s, max=0.8s) -4.64/17 1:37 0–1 >> >> >> >> >>On August 16, 2005 at 22:42:22, John Merlino wrote: >> >>>On August 16, 2005 at 21:49:28, Timothy J. Frohlick wrote: >>> >>>>On August 16, 2005 at 20:52:13, Bahram Namjou wrote: >>>> >>>>>In this position Black (shredder) played g4! and wins...test your engines! >>> >>>>[D]8/5R2/p4N1b/1b2P1p1/1P1p3p/Pk3P1P/2r3P1/6BK b - - 0 43 >>> >>>CM9_R1 on an AMD 2500 does not see it. Can you give the winning line? >>> >>>Time Depth Score Positions Moves >>>0:00 1/4 0.81 1920 43...Bf1 44.Bxd4 Bxg2+ 45.Kg1 Bxh3 >>>0:00 1/5 0.52 6777 43...Bf1 44.Bxd4 Bxg2+ 45.Kg1 Bxh3 >>> 46.Rh7 Kc4 47.Rxh6 Kxd4 >>>0:00 1/5 0.42 12785 43...d3 44.Ng4 Kxa3 45.e6 d2 46.Ne3 >>> Kb3 >>>0:00 1/6 0.42 27671 43...d3 44.Ng4 Kxa3 45.e6 d2 46.Ne3 >>> Kb3 >>>0:00 1/7 0.01 112200 43...d3 44.Ng4 Kxa3 45.Be3 d2 46.Bxd2 >>> Rxd2 47.Nxh6 Kxb4 48.e6 >>>0:01 1/8 -0.17 334877 43...d3 44.Ne4 d2 45.Nxd2+ Rxd2 >>> 46.Bc5 Rd7 47.Rxd7 Bxd7 48.Kh2 Kc4 >>>0:04 1/9 -0.27 1110313 43...d3 44.Be3 Re2 45.Ng4 Kxa3 >>> 46.Kg1 Kxb4 47.e6 a5 >>>0:08 1/10 -0.15 2301797 43...d3 44.Ne4 Kxa3 45.Be3 Re2 >>> 46.Bc1+ Kxb4 47.Bd2+ Kb3 48.Rc7 >>> g4 49.Bxh6 Re1+ 50.Kh2 g3+ 51.Nxg3 >>> hxg3+ 52.Kxg3 >>>0:27 1/11 -0.37 7465930 43...d3 44.Be3 Re2 45.Ng4 Kxa3 >>> 46.Bc1+ Kxb4 47.Kh2 d2 48.Bxd2+ >>> Rxd2 49.Nxh6 Re2 50.f4 >>>0:45 2/12 -0.28 12379793 43...d3 44.Be3 Re2 45.Ng4 Kxa3 >>> 46.Bc1+ Kxb4 47.Kh2 d2 48.Bxd2+ >>> Rxd2 49.Nxh6 Re2 50.f4 gxf4 51.Rxf4+ >>> Bc4 52.Rxh4 Rxe5 >>>1:27 3/13 -0.20 24428588 43...d3 44.Be3 Re2 45.Ng4 Kxa3 >>> 46.e6 Kxb4 47.e7 d2 48.Bxd2+ Rxd2 >>> 49.Nxh6 Re2 50.f4 Bc4 51.Rf8 Rxe7 >>> 52.fxg5 >>>3:17 4/14 -0.15 55277547 43...d3 44.Be3 Re2 45.Ng4 Kxa3 >>> 46.e6 Kxb4 47.e7 a5 48.Kh2 d2 49.Rf5 >>> Bc6 50.Bxd2+ Rxd2 51.Nxh6 Re2 52.Rxg5 >>> Rxe7 >>>9:28 5/15 -0.23 158658580 43...d3 44.Be3 Re2 45.Ng4 Kxa3 >>> 46.Kh2 Kxb4 47.e6 a5 48.e7 a4 49.Rf5 >>> Be8 50.Rf8 Bc6 51.Rb8+ Kc3 52.e8=Q >>> Bxe8 53.Rxe8 >>> >>>jm
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