Author: Dann Corbit
Date: 22:54:10 01/16/03
Go up one level in this thread
On January 16, 2003 at 23:47:33, Eric Tom wrote:
>Hi!
>
>In the following position, NCO proclaims that this is a draw. Can any chess
>engines prove otherwise? I'm just curious if there's anyway at all Black can
>win. NCO's continuation is as follows 20 Ng4 bxc3 21 Rh3 f5 22 Nf6 h6 23 Qxh6+
>Bxh6 24 Rxh6+ Kg7 25 Rh7+ Kf8 followed by perpetual checking. Sorry, I do not
>know how to post the board in this message.
From here:
[D]r1r2b1k/1bq2p1p/p1npp1pN/2nB2P1/1p2P2Q/2N1B1R1/PPP2P1P/2KR4 w - - ce -160;
acd 13; acs 180; pv Bxc5 dxc5 Bxc6 Bxc6 Ne2 Bb5 Rd2 c4 Rf3 Be8 Qf4 c3 bxc3 Qxf4
Nxf4 bxc3;|Be3c5
{Bxc5 chosen instead of Ng4}
[D]r1r2b1k/1bq2p1p/p1npp1p1/2nB2P1/1p2P1NQ/2N1B1R1/PPP2P1P/2KR4 b - - ce 494;
acd 12; acs 180; pv bxc3 Nf6 h5 Bxc5 dxc5 Bxe6 Qb6 Bb3 c4 Nd7 cxb2+ Kxb2 Bg7+
Kb1 Qb4;|bc3
{bxc3 chosen and played}
[D]r1r2b1k/1bq2p1p/p1npp1p1/2nB2P1/4P1NQ/2p1B1R1/PPP2P1P/2KR4 w - - ce -448; acd
11; acs 180; pv Nf6 h5 Bxc5 dxc5 Bxe6 Qb6 Rxc3 fxe6 Rd7 Rc7 Nxh5 Bh6 Rxc7 Qxc7
gxh6 gxh5 Qxh5;|Ng4f6
{Nf6 chosen instead of Rh3}
[D]r1r2b1k/1bq2p1p/p1npp1p1/2nB2P1/4P1NQ/2p1B2R/PPP2P1P/2KR4 b - - ce 510; acd
12; acs 180; pv h5 Bxc5 dxc5 Nf6 cxb2+ Kb1 Bg7 Bxe6 Bxf6 Bxc8 Bxc8 gxf6 Bxh3
Qxh3 Rb8;|h5
{h5 chosen (HUGE advantage) instead of f5. Is f5 a collosal blunder?}
From here forward, it looks drawish either way. At the end it is certainly a
forced draw.
[D]r1r2b1k/1bq4p/p1npp1p1/2nB1pP1/4P1NQ/2p1B2R/PPP2P1P/2KR4 w - f6 ce -58; acd
10; acs 180; pv Nf6 cxb2+ Kb1 h5 Nxh5 gxh5;|Ng4f6
[D]r1r2b1k/1bq4p/p1nppNp1/2nB1pP1/4P2Q/2p1B2R/PPP2P1P/2KR4 b - - ce 4; acd 11;
acs 180; pv h5 Nxh5 cxb2+ Kxb2 Kg8 Nf6+ Kf7 Qh7+ Bg7 Qxg7+ Kxg7 Rh7+ Kf8 Rh8+
Ke7 Rh7+ Kd8;|h5
[D]r1r2b1k/1bq5/p1nppNpp/2nB1pP1/4P2Q/2p1B2R/PPP2P1P/2KR4 w - - ce -27; acd 10;
acs 180; pv Qxh6+ Bxh6 Rxh6+ Kg7 Rh7+ Kf8 Rh8+ Ke7 Rh7+ Kd8 Rh8+ Ke7;|Qh4h6
[D]r1r2b1k/1bq5/p1nppNpQ/2nB1pP1/4P3/2p1B2R/PPP2P1P/2KR4 b - - ce -4; acd 11;
acs 180; pv Bxh6 Rxh6+ Kg7 Rh7+ Kf8 Rh8+ Ke7 Rh7+ Kd8 Rh8+ Ke7;|Bf8h6
[D]r1r4k/1bq5/p1nppNpb/2nB1pP1/4P3/2p1B2R/PPP2P1P/2KR4 w - - ce -25; acd 11; acs
1; pv Rxh6+ Kg7 Rh7+ Kf8 Rh8+ Ke7 Rh7+ Kd8 Rh8+ Ke7;|Rh3h6
[D]r1r4k/1bq5/p1nppNpR/2nB1pP1/4P3/2p1B3/PPP2P1P/2KR4 b - - ce -6; acd 10; acs
180; pv Kg7 Rh7+ Kf8 Rh8+ Ke7 Rh7+ Kd8 Rh8+ Ke7;|Kh8g7
[D]r1r5/1bq3k1/p1nppNpR/2nB1pP1/4P3/2p1B3/PPP2P1P/2KR4 w - - ce -23; acd 10; acs
180; pv Rh7+ Kf8 Rh8+ Ke7 Rh7+ Kd8 Rh8+ Ke7;|Rh6h7
[D]r1r5/1bq3kR/p1nppNp1/2nB1pP1/4P3/2p1B3/PPP2P1P/2KR4 b - - ce -8; acd 11; acs
180; pv Kf8 Rh8+ Ke7 Rh7+ Kd8 Rh8+ Ke7;|Kg7f8
[D]r1r2k2/1bq4R/p1nppNp1/2nB1pP1/4P3/2p1B3/PPP2P1P/2KR4 w - - ce -21; acd 11;
acs 180; pv Rh8+ Ke7 Rh7+ Kd8 Rh8+ Ke7;|Rh7h8
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