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Syzygy endgame tablebases

Black is losing with DTZ 104

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

KQBBvKBB.pgn

Histogram: KQBB winning (log scale)

Longest KQBBvKBB phases

KQBBvKBB statistics

374,228,361,070 (83.8%)
6,478,676 (0.0%)
72,085,981,836 (16.1%)
151,684,952 (0.0%)
KQBBvKBB.json (?)