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Subject: Re: Rybka at Karjakin-Anand position

Author: Uri Blass

Date: 01:34:09 01/24/06

Go up one level in this thread


I can add that an interesting question is if Nc7 is the only winning move

It is possible that Nf6 is also a winning move because after Nf6 gxf6 Bxf6 rybka
see positive score for black

depth 15:

New game
q4rk1/5ppp/3p1b2/r3nP2/4P2P/NpQ1B3/1P4B1/1K1R3R w - - 0 1

Analysis by Rybka 1.01 Beta 12 32-bit:

1. ³  (-0.48): 3.Rd2 Rc8 4.Qxb3 Rb8 5.Bb6 Qc6 6.Rc1 Rc5
2. ³  (-0.66): 3.Bc1 Rc8 4.Qb4 Nc4 5.Rd5 Rxa3 6.bxa3 b2
3. µ  (-1.15): 3.Bd4 Rc8 4.Qxb3 Rb8 5.Bb6 Qc6 6.Rc1 Rc5 7.Rxc5 dxc5 8.Qb5 Qxb5
9.Nxb5 Rxb6

later finding:

2. ³  (-0.65): 3.Rd4 Rxa3 4.bxa3 Qxa3 5.Qb2 Nc4


(,  24.01.2006)

depth 16(score of Rd2 goes down):
New game
q4rk1/5ppp/3p1b2/r3nP2/4P2P/NpQ1B3/1P4B1/1K1R3R w - - 0 1

Analysis by Rybka 1.01 Beta 12 32-bit:

1. ³  (-0.57): 3.Rd2 Rc8 4.Qxb3 Rb8 5.Bb6 Qc6 6.Rc1 Rc5 7.Rxc5 dxc5 8.Bf1 Rxb6
9.Qd5 Qxd5
2. ³  (-0.65): 3.Rd4 Rxa3 4.bxa3 Qxa3 5.Qb2 Nc4 6.Qxa3 Nxa3+ 7.Kc1 Rc8+ 8.Kb2
Nc2 9.Rc1 Rc5
3. ³  (-0.66): 3.Bc1 Rc8 4.Qb4 Nc4 5.Rd5 Rxa3 6.bxa3 b2

(,  24.01.2006)



Uri






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