BT2630 test: position 27

[Jouni]

[d]3r2k1/p2r2p1/1p1B2Pp/4PQ1P/2b1p3/P3P3/7K/8 w - - bm e6

In 1994 programs have 15 minutes(!) to find that move, but there is a better move as seen here:

Analysis by Stockfish 1.6.3 JA 64bit:

1. +- (4.88): 1.Bb4 Rd5 2.Qf7+ Kh8 3.e6 Rxh5+ 4.Kg3 Bxe6 5.Qxe6 Rg5+ 6.Kh4 Rg1 7.Bc3 Rh1+ 8.Kg3 Rf8 9.Qe7 Rg8 10.Kg2 Rh5 11.Bxg7+ Rxg7 12.Qe8+ Rg8 13.g7+ Kxg7 14.Qxh5 Kh7+ 15.Kf2 Rf8+ 16.Ke2 Kg7
2. +- (3.07): 1.e6 Rxd6 2.Qf7+ Kh8 3.e7 Rd2+ 4.Kg3 b5 5.e8Q+ Rxe8 6.Qxe8+ Bg8 7.Qxb5 Rd3 8.Qc5 a6 9.Kg4 Rd5 10.Qa7 a5 11.a4 Rg5+ 12.Kh4 Re5 13.Qb6 Rg5 14.Qc7 Rf5 15.Qe7 Rd5 16.Qxe4 Rc5
3. ± (1.25): 1.Kg3 Kh8 2.Qxe4 Be6 3.Qc6 Re8 4.a4 Red8 5.Qb5 Rc8 6.e4 Rc3+ 7.Kf4 Rd8 8.Qa6 Rd7 9.a5 bxa5 10.Qb5 Rc8 11.Qa6 Rcd8 12.Qxa5 Kg8 13.Qa6 Re8

Jouni

[BBauer]

Same with bt2630.28
[d] rnb1k1nr/p2p1ppp/3B4/1p1N1N1P/4P1P1/3P1Q2/PqP5/R4Kb1 w kq -
Best move given is e5. However, Ra1 is better.
In pos 27 e6 is winning. In pos 28 e5 is winning.
kind regards
Bernhard