Levy - Chess 4.4 on Cyber 175, 1975

Levy - Chess 4.4 on Cyber 175, 1975

David Levy plays 31.Bc8 and creates a position difficult to evaluate for his computer opponent during a 1975 simultaneous exhibition.

What does a modern chess program say about this position?

Black - Chess 4.4 (Cyber 175)

White - IM David Levy

Analysis by Rybka 3 : 26-ply

1. -+ (-2.85): 31...Na4 32.Rb5 Kf8 33.Kg2 Nc5 34.Rb1 Ke8

2. -+ (-2.73): 31...Kf8 32.Rc2 Na4 33.Bf5

3. -+ (-2.60): 31...g6 32.Rc2 Nb5 33.Ra2 Kf8 34.Ra5 Nc3 35.Kf1 Ke8 36.Ra8 Bd6 37.Ra6 Ke7 38.Kg2 Bc7

4. -+ (-2.44): 31...Bf6 32.Kf1 Kf8 33.h4 g6 34.h5 gxh5 35.Rc2 Ke8 36.Kg2 Be5 37.Rd2 Ke7

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