Author: Peter McKenzie
Date: 13:01:52 08/30/00
This position is what could have happened in Nimzo - Shredder in London.
Is from the possible variation 24...Qxb4 25.Qxd5
Even this position requires 13ply (about 7.5 hours on my P133) for Lambchop to
return a really bad score (see output below). I'd be interested in how other
programs go on this position. (Note the terrible branching factor at depth 12
and 13)
[D]r3rb1k/6p1/p2p3p/1ppQ4/Pq6/5NRP/5PP1/1B2R1K1 b - -
_______________________ Black to play
8 |br|__|__|__|br|bb|__|bk|
7 |__|__|__|__|__|__|bp|__|
6 |bp|__|__|bp|__|__|__|bp|
5 |__|bp|bp|WQ|__|__|__|__|
4 |WP|bq|__|__|__|__|__|__|
3 |__|__|__|__|__|WN|WR|WP|
2 |__|__|__|__|__|WP|WP|__|
1 |__|WB|__|__|WR|__|WK|__|
a b c d e f g h
Depth, score, time, nodes
0 0 0 0 e8e1
1 204 0 57 e8e1 f3e1 b4e1 g1h2
2 204 0 228 e8e1 f3e1 b4e1 g1h2
3 225 0 487 e8e1 f3e1 b4e1 g1h2 a8e8
4 280 0 1451 e8e1 f3e1 a8e8 g1h2 b4b1
5 209 100 5007 e8e1 f3e1 a8e8 d5f5 e8e1 g1h2 h8g8 f5h7 g8f7 h7g6 f7e7
6 209 200 10404 e8e1 f3e1 a8e8 d5f5 e8e1 g1h2 h8g8
7 73 700 68142 e8e1 f3e1 b4e1 g1h2 e1b1 d5a8 b1f5 g3f3 f5e5 h2h1
8 73 1100 118111 e8e1 f3e1 b4e1 g1h2 e1e8 d5d3 g7g6
9 32 2600 286579 e8e1 f3e1 b4e1 g1h2 e1e8 g3e3 e8b8 d5f5 d6d5 h2h1 g7g6 f5g
6
10 -25 7200 826264 e8e1 f3e1 b4e1 g1h2 e1e8 g3e3 e8d8 d5d3 g7g6 d3g6 a8a7 b1a
2
11 32 14700 1740365 e8e1 f3e1 b4e1 g1h2 e1e8 g3e3 e8b8 d5f5 g7g6 f5g6 b8b7
12 -19 441600 53229976 e8e1 f3e1 b4e1 g1h2 e1e8 g3e3 e8d8 d5d3 g7g6 d3g6 d8d7 b
1e4 d6d5 g6f6 h8g8
13 -112 2648900 320991614 e8e1 f3e1 a8e8 d5f5 e8e1 g1h2 h8g8 f5h7 g8f7 g3f3 f7e8
Q b1g6 e8d7 f3f8 e1e7 a4b5 a6b5 h7g8 b4c4 g6f5 d7c7
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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