Author: Jon Dart
Date: 19:35:02 05/10/02
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
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Last modified: Thu, 07 Jul 11 08:48:38 -0700
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