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Subject: test position

Author: Uri Blass

Date: 11:12:41 08/24/04


[D]r3br2/2q2pbk/p2p1npp/nppP4/4PR2/1PP1B1NP/P1BNQ1P1/R5K1 w - - 0 1


Yace could learn a score of +0.42 from 1.Nf5 from the following tree
Liberzon said about the move 1.Nf5(typical sacrifice)

I wonder if there are a lot of games when humans played a similiar sacrifice and
if the sacrifice was also correct in these games.

Here is analysis (note that in the game white blundered by 2.e5 but I tried to
analyze to see if liberzon was correct when he said that white had a winning
position after 2.Rxf5 and it seems that he was correct inspite of not proving a
forced win)

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "New game"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r3br2/2q2pbk/p2p1npp/nppP4/4PR2/1PP1B1NP/P1BNQ1P1/R5K1 w - - 0 1"]
[PlyCount "5"]

1. Nf5 gxf5 2. Rxf5 Nd7 (2... Kg8 3. Bxh6 Bxh6 (3... Nh7 4. Bxg7 Kxg7) 4. Rxf6
Kg7 5. e5 Rh8 6. exd6) (2... Kh8 3. Bxh6 Nh7 (3... Bxh6 4. Rxf6 Kg7 5. e5) (
3... Rg8 4. Bxg7+ Kxg7 5. e5) 4. Bxg7+ Kxg7 5. e5 f6 6. e6) (2... Ng8 3. e5 f6
4. exd6 Qb7 5. Rxf6+ Kh8) 3. e5 *

Uri



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