Author: Amir Ban
Date: 07:33:12 05/11/02
Go up one level in this thread
On May 10, 2002 at 22:35:02, Jon Dart wrote: >There's a known position in the Classical Nimzo-Indian as follows: > >[D] r4rk1/p4ppp/2P5/q1pp1b2/4n3/P7/1BQNPPPP/R3KB1R b KQ - - > >Crafty has a book line here continuing Rab8 c7. My database shows several games >with this line, including Rogers-Ward, BCF ch-T 1997-8, a draw. Eliskases played >d4 against Bololjubow in 1937, another draw. But a search from this position >gives the continuation Ng3, with advantage to Black: > > > 10 3.31 -- 1. ... Ng3 > 10 3.99 -0.98 1. ... Ng3 2. Bc3 Qc7 3. Qb3 Nxh1 4. > Qxd5 Be6 5. Qe5 Qxe5 6. Bxe5 Rad8 > 10-> 10.66 -0.98 1. ... Ng3 2. Bc3 Qc7 3. Qb3 Nxh1 4. > Qxd5 Be6 5. Qe5 Qxe5 6. Bxe5 Rad8 > 11 13.44 ++ 1. ... Ng3!! > 11-> 29.14 -1.37 1. ... Ng3 2. Bc3 Qc7 3. Qb3 Nxh1 4. > Qxd5 Be6 5. Qe5 Qxe5 6. Bxe5 Rad8 > 12 34.77 -- 1. ... Ng3 > 12 37.50 -0.87 1. ... Ng3 2. Qc3 Qxc3 3. Bxc3 Nxh1 > 4. g4 Bxg4 5. Bg2 d4 6. Ba5 Rae8 7. > f3 d3 8. fxg4 Rxe2+ > 12-> 1:55 -0.87 1. ... Ng3 2. Qc3 Qxc3 3. Bxc3 Nxh1 > 4. g4 Bxg4 5. Bg2 d4 6. Ba5 Rae8 7. > f3 d3 8. fxg4 Rxe2+ > 13 2:07 -0.87 1. ... Ng3 2. Qc3 Qxc3 3. Bxc3 Nxh1 > 4. g4 Bxg4 5. Bg2 d4 6. Ba5 Rae8 7. > f3 d3 8. fxg4 Rxe2+ > time=3:20 cpu=99% mat=3 n=133137602 fh=93% nps=664k > ext-> chk=5470267 cap=361754 pp=602423 1rep=458117 mate=32558 > predicted=0 nodes=133137602 evals=24036969 > endgame tablebase-> probes done=0 successful=0 > hashing-> trans/ref=22% pawn=6% used=99% > >Arasan and Hiarcs give a similar result, at least at a few minutes' search time. >Ng3 is surprising, to say the least. Whether it's really good or not, I'm not >sure. > >--Jon 1... Ng3 2. Qc3 Qxc3 3. Bxc3 Nxh1 4. c7 is not good for black. e.g. 4... a5 5. g4 Bxg4 6. Bg2 d4 7. Bxa8 dxc3 8. Ne4 Rxa8 9. f3. Programs have problems understanding that the N is doomed on h1. Amir
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.