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.

KQBPPvKR.pgn lichess.org

Histogram: KQBPP winning vs. KR (log scale)

Longest KQBPPvKR phases

KQBPPvKR statistics (unique positions)

White wins:
1,018,393,582,800 (94.3%)
Frustrated white wins:
426 (0.0%)
Draws:
59,333,670,400 (5.5%)
Black wins:
2,033,794,630 (0.2%)
KQBPPvKR.json (?)