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.

KQBBPvKR.pgn lichess.org

Histogram: KQBBP winning vs. KR (log scale)

Longest KQBBPvKR phases

KQBBPvKR statistics (unique positions)

White wins:
1,313,532,116,870 (95.3%)
Frustrated white wins:
49,889,754 (0.0%)
Draws:
63,623,427,958 (4.6%)
Black wins:
1,005,700,754 (0.1%)
KQBBPvKR.json (?)