Syzygy endgame tablebases

Black is losing with DTZ 101

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

KQRPvKB.pgn lichess.org

Histogram: KQRP winning vs. KB (log scale)

Longest KQRPvKB phases

KQRPvKB statistics (unique positions)

White wins:
25,172,048,596 (99.7%)
Frustrated white wins:
402 (0.0%)
Draws:
81,871,858 (0.3%)
Black wins:
107,684 (0.0%)
KQRPvKB.json (?)