Author: Chessfun
Date: 21:15:53 10/09/00
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On October 09, 2000 at 13:28:49, Mike S. wrote: >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). Goliath Light "YT" finds the move instantly with or without tb's with or without selectivity=1. It clearly is pretty amazing. Sarah.
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