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Syzygy endgame tablebases

White is losing with DTZ 231

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

KQBBvKQR.pgn

Histogram: KQBB losing (log scale)

Longest KQBBvKQR phases

KQBBvKQR statistics

141,559,723,832 (38.2%)
27,134,964 (0.0%)
117,316,511,390 (31.7%)
1,003,166,772 (0.3%)
110,528,004,004 (29.8%)
KQBBvKQR.json (?)