Author: George Sobala
Date: 02:55:31 02/20/03
Go up one level in this thread
On February 20, 2003 at 05:50:16, GuyHaworth wrote: > >The ICGA Journal will be publishing Karsten Mueller's deep analysis of 16.g3 in >March. > >All I will say is that, to date, if White has a clear win afte 16.g3, it has not >become clear yet. > >Anyone who thinks there is such a clear win is welcome to post it on CCC. > >g I have watched several enjoyable engine-engine matches from this position, using classical time controls. I give White to an engine which like White's position (e.g. Tiger 15, Fritz) and Black to an engine which likes Black's position (e.g. Gambit Tiger III, Junior 7). So far, Black has always won. I also append some analysis which I found on the Net: ========================================================================== Was Kasparov Winning? Instead of 16.Bxh7+ Kasparov could have avoided a draw with 16.g3. Let's see where it might lead: 16...Qh2! (Tightening the mating net. There is no point in letting the white king run away after 16...Nh2+ 17.Kf2 Ng4+ 18.Ke1, although there are still some sparks after 18...Qh3!) 17.f5 (A more exciting draw than in the actual game could be achieved after 17.Rae1 g6 [threatening 18...Nxe3! 19.Bxe3 Bg4+! 20.Kxg4 Qh5 mate] 18.f5 Nd7! 19.e4 [The only move, otherwise white gets mated either after 19.Kxg4 Qh5+ 20.Kf4 g5 mate; or after 19.fxg6 Nde5+! 20.dxe5 Nxe5+ 21.Kf4 Qh6 mate.] 19...dxe4+ 20.Nxe4 gxf5 21.N4c3 Re3+! 22.Bxe3 Nde5+ 23.dxe5 Nxe5+ 24.Kf4 Qh6+ 25.Kxe5 Qg7+ 26.Kd6 Qf8+ draw by a perpetual check.) 17...Nd7! (The key move to black's triple piece sacrifice. Threatening 18...Nde5+! 19.dxe5 Nxe5+ 20.Kf4 Qh6 mate, it forces white to accept the first gift.) 18.Kxg4 Qg2! (Not allowing the white king to drop back.) 19.Kf4 (After 19.Rh1 Nf6+ 20.Kh4 h6! 21.Rag1 Bxf5! 22.Rxg2 g5 mates.) 19...Nf6 20.e4! (Disaster can strike after 20.Rh1 Qf2+ 21.Kg5 Qf3 22.Rh4 h6+ 23.Rxh6 Qg4 mate.) 20...dxe4 21.Bxe4 (Prompting black to sacrifice a rook and a bishop.) 21...Rxe4+! (On 21...Nxe4 22.Nxe4 Qxe2 23.Rae1! wins.) 22.Nxe4 Nd5+ 23.Ke5 (The white king is forced to walk into a lion's den. After 23.Kg4? Qxe2+ 24.Kh3 Ne3 black wins.) 23...Bxf5!! (Black quickly brings in his rook, speeding up the attack.) 24.Nf4! (Accepting the bishop gets white in trouble either after 24.Kxf5 Qh3+ 25.g4 [or 25.Kg5 h6 mate] 25...Re8 and white is mated soon, e.g. 26.Nf4 g6+ 27.Nxg6 fxg6+ 28.Kg5 h6+ 29.Kxg6 Qxg4+ 30.Kxh6 Qh4+ 31.Kg6 Ne7 mate; or after 24.Rxf5 Re8+ 25.Kd6 Rd8+ 26.Ke5 [On 26.Kc5 Qxe2 27.Nd6 b6+ 28.Kxc6 Rxd6+! wins] 26...Qxe2 27.Re1 Ne7!! 28.Rf6 [On 28.Rxe2 Ng6 mates] 28...Rd5+ 29.Kf4 Rf5+! 30.Rxf5 Ng6+ 31. Kg5 h6 mate.) 24...Re8+ 25.Kd6 (On 25.Kxf5 Ne3+ wins.) 25...Nxf4 26.Rf2!! (Allowing black to chase the white king to the 8th rank. After 26.Nf6+? gxf6 27.Qxf5 c5! black keeps the fire on.) 26...Rd8+ 27.Ke7! Rd7+ 28.Ke8 (Amazingly, the king seems safe and can even help to launch a counter attack, for example 28...Qh3 29.Ng5 Qg4 30.Qc5, threatening 31.Qf8 mate.) But who can blame Kasparov's decision to take a draw instead of going into such a wild and complicated position?
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.