Syzygy endgame tablebases

Black is losing with DTZ 162

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

KQRBPvKQ.pgn lichess.org

Histogram: KQRBP winning vs. KQ (log scale)

Longest KQRBPvKQ phases

KQRBPvKQ statistics (unique positions)

White wins:
1,075,538,141,282 (89.0%)
Frustrated white wins:
41,065,481 (0.0%)
Draws:
115,020,791,426 (9.5%)
Frustrated black wins:
6,400,705 (0.0%)
Black wins:
17,812,035,574 (1.5%)
KQRBPvKQ.json (?)