Author: Mike S.
Date: 10:28:49 10/09/00
In a winboard engine match game, Little Goliath 2000V3 found the following impressive sacrifice(s) to save half a point: LG2000V3 - Gromit30 8min+3sec (PII/333 MHz), 09.10.2000 1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.Bd3 c5 6.c3 Nc6 7.Ne2 cxd4 8.cxd4 Qb6 9.Nf3 f6 10.exf6 Nxf6 11.0-0 Bd6 12.b3 0-0 13.Bf4 Qc7 14.Bxd6 Qxd6 15.Re1 Bd7 16.Nc3 Kh8 17.Qd2 Ng4 18.Nb5 Qb8 19.h3 Rxf3 20.gxf3 Qh2+ 21.Kf1 Qxh3+ 22.Ke2 e5 23.Rg1 Re8 24.fxg4 Bxg4+ 25.Rxg4 exd4+ 26.Kd1 Qh1+ 27.Kc2 Qxa1 28.Rh4 g6 29.b4 Qxa2+ 30.Kc1 Qa1+ 31.Kc2 Re1 32.Kb3 a5 33.bxa5 Nxa5+ 34.Kb4 b6 35.Nc3 Rc1 [D]7k/7p/1p4p1/n2p4/1K1p3R/2NB4/3Q1P2/q1r5 w - - 0 36 36.Rxh7+ Kxh7 37.Bxg6+ Kxg6 38.Qd3+ Kg7 39.Qxd4+ Kg6 40.Qg4+ Kf6 41.Qf4+ Ke6 42.Qg4+ Kf7 43.Qf4+ Ke8 44.Qe5+ Kd7 45.Qxd5+ Kc8 46.Qe6+ Kb7 47.Qd7+ Kb8 48.Qe8+ Ka7 49.Nb5+ Kb7 50.Nd6+ Ka7 51.Nb5+ Kb7 52.Nd6+ Ka7 53.Nb5+ Draw ½-½ LG2000V3 displayed 36.Rxh7+!! immediatly, with the evaluation of 0.00. Looks like an extremely difficult sacrifice, unexpected in a blitz game. I think Goliath must have some kind of special code or something for this kind of a draw. I tried several other engines in this position. None found Rxh7+, not even after more time. It seems their search extensions are not enough to recognise the draw, which it really is hopefully, assuming black's play after the 36th move cannot be improved (?). I know that black's previous move 35...Rc1 probably wasn't the best one, but nevertheless Goliath's sac of two pieces is great. The 3rd repetition comes after 35 (!!) plies. Regards, M.Scheidl Btw., Little Goliath 2000 V3 is very similar to Goliath light from the CB Young Talents CD, but with default selectivity=1 and without tb access (but same code otherwise, according to the author).
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.