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Subject: Re: Curious about 3 positions

Author: John Stanback

Date: 12:29:58 11/30/99

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On November 29, 1999 at 15:42:01, Dann Corbit wrote:

>Here are 3 positions from fairly standard openings.  For all of them, they have
>a fairly bad eval.  On lengthy analysis, they seemed to be pulling out of the
>dolldrums.  What I am wondering is what other programs/human analysts think of
>these positions:
>
>rnb1kbnN/ppp3pp/8/3p4/2B1p3/8/PPPP1PqP/RNBQKR2 b Qq - acd 13; ce -222; pv dxc4;
>
>rnb1k2r/1p1n1ppp/p3p3/4P1B1/1bBN4/q1N5/P1PQ2PP/1R2K2R w Kkq - acd 14; ce -230;
>pv Rb3 Qa5 O-O Nxe5 Be2 O-O Bf4 Ng6 Bc7 Qxc7;
>
>rnb2bnr/pp1p1k1p/2p2q2/8/4Pp2/2N1BQ2/PPP3PP/R4RK1 w - - acd 13; ce -217; pv
>Qh5+;

I had Zarkov search each of these for 3 minutes on a P2-300.  The output
is shown below.  The 3rd column is the iteration and the 4th column is
the score in centipawns.

rnb1kbnN/ppp3pp/8/3p4/2B1p3/8/PPPP1PqP/RNBQKR2 b Qq -
00:01.0    34944  5>  -147  dxc4 Qh5+ Kd8 Qf7 Nd7 Qxg8 Qxh2 Qxc4
00:02.0    65850  6>  -147  dxc4 Qh5+ Kd8 Qf7 Nd7 Qxg8 Qxh2 Qxc4
00:03.2   105728  6   -191  dxc4 Qh5+ Kd8 Qd5+ Nd7 Qxg8 Qxh2 d3 Qh5 dxe4
00:03.8   128384  6   -153  Bg4 Be2 Nf6 Nc3 Bxe2 Qxe2 Qxh2 Qb5+ Nbd7 Qxb7
00:05.2   175289  6    -79  Nf6 Bxd5 Bh3 Bc4 Qxh2 Nc3 Bxf1 Bf7+ Kd7 <HT>
00:05.3   179072  6    -89  Nf6 Bxd5 Bh3 Bf7+ Ke7 Bc4 Qxh2 d4 Bxf1 Bxf1
00:06.9   243366  7>   -89  Nf6 Bxd5 Bh3 Bf7+ Ke7 Bc4 Qxh2 d4 Bxf1 Bxf1
00:08.9   309956  7    -28  Nf6 Bxd5 Bg4 f3 Bxf3 Rxf3 exf3 Bxf3 Qg1+ Ke2
00:09.2   325504  7    -50  Nf6 Bxd5 Bh3 Bf7+ Kd7 Qe2 Qxh2 <HT>
00:13.5   493042  8>   -50  Nf6 Bxd5 Bh3 Bf7+ Kd7 Qe2 Qxh2 <HT>
00:17.7   656768  8    -78  Nf6 Bxd5 Bg4 f3 Bxf3 Rxf3 exf3 Bxf3 Qxh2 Bxb7
00:51.8  1690918  9>   -78  Nf6 Bxd5 Bg4 f3 Bxf3 Rxf3 exf3 Bxf3 Qxh2 Bxb7
01:05.2  2127099  9    -19  Nf6 Bxd5 Bg4 f3 Bxf3 Rxf3 exf3 Bxf3 Qxh2 Nf7 Kxf7
01:18.7  2527872  9    -13  Nf6 Bxd5 Bg4 f3 Bxf3 Rxf3 exf3 Bxf3 Qxh2 Qe2+
02:16.1  4580281 10>   -13  Nf6 Bxd5 Bg4 f3 Bxf3 Rxf3 exf3 Bxf3 Qxh2 Qe2+
03:00.0  6039682 10    -13  Nf6 Bxd5 Bg4 f3 Bxf3 Rxf3 exf3 Bxf3 Qxh2 Qe2+

rnb1k2r/1p1n1ppp/p3p3/4P1B1/1bBN4/q1N5/P1PQ2PP/1R2K2R w Kkq -
00:01.0    39168  5>   -45  Rb3 Qa5 O-O O-O Bf4 Nxe5 Bxe5 Bxc3
00:02.3    60809  6>   -45  Rb3 Qa5 O-O O-O Bf4 Nxe5 Bxe5 Bxc3
00:03.4    98304  6    -90  Rb3 Qa5 O-O Nxe5 Bd3 O-O
00:06.9   217509  7>   -90  Rb3 Qa5 O-O Nxe5 Bd3 O-O
00:10.2   324608  7   -103  Rb3 Qa5 O-O Nxe5 Bd3 O-O Be4
00:20.0   743599  8>  -103  Rb3 Qa5 O-O Nxe5 Bd3 O-O Be4
00:38.5  1370624  8   -110  Rb3 Qa5 a3 Bxa3 O-O h6 Bf4 Nc6 Nxc6 bxc6
01:08.7  2458873  9>  -110  Rb3 Qa5 a3 Bxa3 O-O h6 Bf4 Nc6 Nxc6 bxc6
01:49.5  3949440  9   -135  Rb3 Qa5 a3 Bxa3 O-O Bc5 Qf4 Bxd4+ Qxd4 Nc6 Qd6
03:22.4  7672200 10>  -135  Rb3 Qa5 a3 Bxa3 O-O Bc5 Qf4 Bxd4+ Qxd4 Nc6 Qd6
03:22.4  7672833 10   -135  Rb3 Qa5 a3 Bxa3 O-O Bc5 Qf4 Bxd4+ Qxd4 Nc6 Qd6

rnb2bnr/pp1p1k1p/2p2q2/8/4Pp2/2N1BQ2/PPP3PP/R4RK1 w - -
00:01.0    34176  5>  -133  Bxf4 Na6 Qh5+ Ke6 Be3 Qg7
00:01.1    38272  5   -155  Bxf4 Be7 Qh5+ Qg6 Bxb8+ Nf6 Qe5
00:02.3    75994  6>  -155  Bxf4 Be7 Qh5+ Qg6 Bxb8+ Nf6 Qe5
00:06.5   182272  6   -206  Bxf4 Ke8 Qh5+ Qg6 Qe5+ Be7 Nb5 cxb5 Qxh8
00:11.1   344989  7>  -206  Bxf4 Ke8 Qh5+ Qg6 Qe5+ Be7 Nb5 cxb5 Qxh8
00:15.2   460262  7   -131  Bxf4 Ke8 Qh5+ Qg6 Qe5+ Be7 Qxh8 Bf6 Bd6 Bxh8 Rf8+
00:20.4   616960  7   -132  Bxf4 Bg7 Qg3 Qg6 Bxb8+ Nf6 Qd6 Rf8
00:30.3   944651  8>  -132  Bxf4 Bg7 Qg3 Qg6 Bxb8+ Nf6 Qd6 Rf8
00:52.0  1582592  8   -125  Bxf4 Bg7 Qg3 Qg6 Bxb8+ Nf6 Qd6 Re8 e5 Re6
01:57.7  3978616  9>  -125  Bxf4 Bg7 Qg3 Qg6 Bxb8+ Nf6 Qd6 Re8 e5 Re6
02:33.4  5310848  9   -127  Bxf4 Bg7 Qg3 Qg6 Bxb8+ Nf6 Qc7 Rg8 e5 Bh8 Rf2
03:00.0  6429313  9   -127  Bxf4 Bg7 Qg3 Qg6 Bxb8+ Nf6 Qc7 Rg8 e5 Bh8 Rf2


John



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