Syzygy endgame tablebases

White is losing with DTZ 198

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

KQBPvKQR.pgn lichess.org

Histogram: KQBP losing vs. KQR (log scale)

Longest KQBPvKQR phases

KQBPvKQR statistics (unique positions)

White wins:
375,972,201,124 (31.8%)
Frustrated white wins:
24,127,831 (0.0%)
Draws:
304,664,124,787 (25.7%)
Frustrated black wins:
6,908,832 (0.0%)
Black wins:
503,385,345,808 (42.5%)
KQBPvKQR.json (?)