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Syzygy endgame tablebases

Black is losing with DTZ 154

This is a blessed loss. Mate can be forced, but a draw can be achieved under the fifty-move rule.

KQBBNvKQ.pgn

Histogram: KQBBN winning (log scale)

Longest KQBBNvKQ phases

KQBBNvKQ statistics

353,014,828,198 (87.0%)
6,589,650 (0.0%)
34,586,441,480 (8.5%)
1,782,146,704 (0.4%)
16,394,486,770 (4.0%)
KQBBNvKQ.json (?)