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Subject: position without Ng5, good test

Author: Will Singleton

Date: 09:10:06 10/18/02

Go up one level in this thread


Adjusted position with the h7 pawn moved to h6, which prevents Ng5.
I would be surprised if any amateur program can find this, other
than Ruffian.

[D]r1b1k2r/pp3pp1/4pb1p/2n5/3RB3/4BN2/PqP1QPPP/3R2K1 w kq - 0 1

r1b1k2r/pp3pp1/4pb1p/2n5/3RB3/4BN2/PqP1QPPP/3R2K1 w kq - 0 1

Ruffian, Athlon 1.6ghz, 34 seconds:

8642 >first : analyze
11426 <first : 9 -51 276 3239593  Bc1 Qb6 Rd6 Qa5 Bd5 O-O Bc4 b5 Bd2
15703 <first : 10 -67 705 8455258  Bc1 Qb6 Rd6 Qa5 Bd2 Qa4 Bd5 O-O Bb3 Nxb3 axb3
17505 <first : 10 -65 885 10468898  Qc4 Nxe4 Rxe4 O-O Bd4 Bxd4 Rexd4 e5 Nxe5 Be6
Qb4 Qxa2 Qxb7 Qxc2
29272 <first : 11 -65 2061 24393170  Qc4 Nxe4 Rxe4 O-O Bd4 Bxd4 Rexd4 e5 Nxe5
Be6 Qb4 Qxa2 Qxb7 Qxc2
42721 <first : 11 -30 3407 40328029 Rd8+
42731 <first : ++
46577 <first : 11 2 3793 45118635  Rd8+ Bxd8 Bxc5 Bb6 Qd3 f5 Bxb7 Bxc5 Bc6+ Kf7
Bxa8 Qxa2 Bc6
60898 <first : 12 0 5225 62565022  Rd8+ Bxd8 Bxc5 Bb6 Bd6 Rg8 Bh7 Rh8 Be4
114705 <first : 13 35 10605 127184318 Rd8+
114705 <first : ++
134724 <first : 13 36 12607 151303498  Rd8+ Bxd8 Bxc5 Bb6 Bd6 h5 Be5 Qb4 Bxg7
Rg8 Bf6 Qa4 Bd5 Bd7
255107 <first : 14 53 24646 301833440  Rd8+ Bxd8 Bxc5 Bb6 Bd6 h5 Be5 Qb4 Bxg7
Rg8 Bf6 Qc5 Ne5 Bc7 Nc4



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