[fen]2r3k1/1p2br1p/1qp3pP/3n1bB1/p1P1pP2/P3P1PN/1P1Q2B1/2KRR3 b - - 4 24[/fen]
Dragon played Nb4 with 0.00 evaluation. Chat comment: soon negative! No: Lc0 as white wins easily.
Interesting TCEC position!
Moderators: hgm, Dann Corbit, Harvey Williamson
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Graham Banks
- Posts: 41178
- Joined: Sun Feb 26, 2006 10:52 am
- Location: Auckland, NZ
Re: Interesting TCEC position!
Tried to post a diagram, but it doesn't seem to work.
gbanksnz at gmail.com
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Jouni
- Posts: 3227
- Joined: Wed Mar 08, 2006 8:15 pm
Re: Interesting TCEC position!
Position is totally lost for black, but it takes some time for SF to see it:
...
24...Nb4
+/= (0.38 ++) Depth: 42/49 00:02:24 858mN, tb=22769
24...Nb4 25.axb4
+/= (0.52 --) Depth: 42/49 00:02:26 868mN, tb=22789
24...Nb4 25.axb4
+/= (0.62 --) Depth: 42/49 00:02:30 897mN, tb=22822
24...Nb4 25.axb4
+/- (0.74 --) Depth: 42/49 00:02:42 965mN, tb=22962
24...Nb4 25.axb4
+/- (0.89 --) Depth: 42/49 00:02:55 1041mN, tb=23549
24...Nb4 25.axb4
+/- (1.10 --) Depth: 42/49 00:03:10 1137mN, tb=24172
24...Nb4
+/- (0.93 ++) Depth: 42/49 00:03:17 1178mN, tb=24723
24...Nb4
+/= (0.59 ++) Depth: 42/72 00:03:20 1194mN, tb=24850
24...Nb4 25.axb4 Bxb4 26.Qc2 a3 27.Kb1 Qa5 28.Re2 b5 29.c5 Bg4 30.Red2 Bxd2 31.Rxd2 Be6 32.Nf2 Ra8 33.Nxe4 Ba2+ 34.Ka1 axb2+ 35.Qxb2 Rfa7 36.Bd8 Qa6 37.Bb6 Bd5+ 38.Kb1 Qa1+ 39.Qxa1 Rxa1+ 40.Kc2 R1a2+ 41.Kd1 Rxd2+ 42.Kxd2 Ra2+ 43.Kc3 Rxg2 44.Nf6+ Kf7 45.Nxh7 Rxg3 46.Ng5+ Kg8 47.Bd8 Rxg5 48.fxg5 Be4 49.Kd4 Bh1 50.Bf6 Kh7 51.e4 Bg2 52.Ke5 Bf3 53.Bd8 Bh1 54.Bb6 Kg8 55.Ba5 Kh7 56.Kf4 Bg2
+/= (0.57) Depth: 42/72 00:03:22 1202mN, tb=24888
24...Nb4
+/= (0.56 ++) Depth: 43/72 00:03:34 1272mN, tb=26625
24...Nb4
+/= (0.51 ++) Depth: 43/76 00:03:48 1354mN, tb=29621
...
...
...
24...Nb4 25.axb4
+- (2.35 --) Depth: 50/79 00:17:02 6012mN, tb=216786
24...Nb4
+- (2.24 ++) Depth: 50/79 00:17:06 6031mN, tb=217117
24...Nb4 25.axb4
+- (2.46 --) Depth: 50/82 00:18:26 6507mN, tb=238459
24...Nb4 25.axb4 Bxb4 26.Qc2 a3 27.Kb1 Qa5 28.Re2 axb2 29.Qxb2 b5 30.c5 Bc3 31.Qa2 Qb4+ 32.Rb2 Bxb2 33.Qxb2 Qxc5 34.Qb3 Re8 35.Bf6 Be6 36.Qc3 Qh5 37.Nf2 Qe2 38.Rd2 Qe1+ 39.Nd1 b4 40.Qb2 Rd7 41.Kc1 Qxd2+ 42.Qxd2 Rxd2 43.Kxd2 Kf7 44.Be5 Ra8 45.Bxe4 Ra2+ 46.Ke1 c5 47.Bd6 b3 48.Be5 Rh2 49.Nf2 Rxh6 50.Bb2 Kf8 51.g4 Kg8 52.Kf1 Bc4+ 53.Kg2 g5 54.fxg5 Ra6 55.Bb1 Bf7 56.Ne4 Bd5 57.Kg3 Bxe4 58.Bxe4 Rd6 59.Kf4 Rd1 60.Bf5 Rd2
+- (2.36) Depth: 50/82 00:19:06 6737mN, tb=248439
24...Nb4 25.axb4
+- (2.49 --) Depth: 51/75 00:20:20 7163mN, tb=271615
...
24...Nb4
+/= (0.38 ++) Depth: 42/49 00:02:24 858mN, tb=22769
24...Nb4 25.axb4
+/= (0.52 --) Depth: 42/49 00:02:26 868mN, tb=22789
24...Nb4 25.axb4
+/= (0.62 --) Depth: 42/49 00:02:30 897mN, tb=22822
24...Nb4 25.axb4
+/- (0.74 --) Depth: 42/49 00:02:42 965mN, tb=22962
24...Nb4 25.axb4
+/- (0.89 --) Depth: 42/49 00:02:55 1041mN, tb=23549
24...Nb4 25.axb4
+/- (1.10 --) Depth: 42/49 00:03:10 1137mN, tb=24172
24...Nb4
+/- (0.93 ++) Depth: 42/49 00:03:17 1178mN, tb=24723
24...Nb4
+/= (0.59 ++) Depth: 42/72 00:03:20 1194mN, tb=24850
24...Nb4 25.axb4 Bxb4 26.Qc2 a3 27.Kb1 Qa5 28.Re2 b5 29.c5 Bg4 30.Red2 Bxd2 31.Rxd2 Be6 32.Nf2 Ra8 33.Nxe4 Ba2+ 34.Ka1 axb2+ 35.Qxb2 Rfa7 36.Bd8 Qa6 37.Bb6 Bd5+ 38.Kb1 Qa1+ 39.Qxa1 Rxa1+ 40.Kc2 R1a2+ 41.Kd1 Rxd2+ 42.Kxd2 Ra2+ 43.Kc3 Rxg2 44.Nf6+ Kf7 45.Nxh7 Rxg3 46.Ng5+ Kg8 47.Bd8 Rxg5 48.fxg5 Be4 49.Kd4 Bh1 50.Bf6 Kh7 51.e4 Bg2 52.Ke5 Bf3 53.Bd8 Bh1 54.Bb6 Kg8 55.Ba5 Kh7 56.Kf4 Bg2
+/= (0.57) Depth: 42/72 00:03:22 1202mN, tb=24888
24...Nb4
+/= (0.56 ++) Depth: 43/72 00:03:34 1272mN, tb=26625
24...Nb4
+/= (0.51 ++) Depth: 43/76 00:03:48 1354mN, tb=29621
...
...
...
24...Nb4 25.axb4
+- (2.35 --) Depth: 50/79 00:17:02 6012mN, tb=216786
24...Nb4
+- (2.24 ++) Depth: 50/79 00:17:06 6031mN, tb=217117
24...Nb4 25.axb4
+- (2.46 --) Depth: 50/82 00:18:26 6507mN, tb=238459
24...Nb4 25.axb4 Bxb4 26.Qc2 a3 27.Kb1 Qa5 28.Re2 axb2 29.Qxb2 b5 30.c5 Bc3 31.Qa2 Qb4+ 32.Rb2 Bxb2 33.Qxb2 Qxc5 34.Qb3 Re8 35.Bf6 Be6 36.Qc3 Qh5 37.Nf2 Qe2 38.Rd2 Qe1+ 39.Nd1 b4 40.Qb2 Rd7 41.Kc1 Qxd2+ 42.Qxd2 Rxd2 43.Kxd2 Kf7 44.Be5 Ra8 45.Bxe4 Ra2+ 46.Ke1 c5 47.Bd6 b3 48.Be5 Rh2 49.Nf2 Rxh6 50.Bb2 Kf8 51.g4 Kg8 52.Kf1 Bc4+ 53.Kg2 g5 54.fxg5 Ra6 55.Bb1 Bf7 56.Ne4 Bd5 57.Kg3 Bxe4 58.Bxe4 Rd6 59.Kf4 Rd1 60.Bf5 Rd2
+- (2.36) Depth: 50/82 00:19:06 6737mN, tb=248439
24...Nb4 25.axb4
+- (2.49 --) Depth: 51/75 00:20:20 7163mN, tb=271615
Jouni