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Syzygy endgame tablebases

Black is losing with DTZ 120

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

KQBBvKRR.pgn

Histogram: KQBB winning vs. KRR (log scale)

⋮

Longest KQBBvKRR phases

KQBBvKRR statistics

303,675,036,672 (74.9%)
24,694,212 (0.0%)
57,839,649,134 (14.3%)
43,745,429,172 (10.8%)
KQBBvKRR.json (?)