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Syzygy endgame tablebases

Black is losing with DTZ 108

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

KQRBvKBB.pgn

Histogram: KQRB winning (log scale)

Longest KQRBvKBB phases

KQRBvKBB statistics

404,165,225,678 (93.4%)
70,956,622 (0.0%)
28,470,977,228 (6.6%)
88,259,498 (0.0%)
KQRBvKBB.json (?)