Syzygy endgame tablebases

Black is losing with DTZ 101

axb1=Q+ Zeroing

Ke3 Loss with DTZ 1 Kg3 Loss with DTZ 1 axb1=B Zeroing axb1=N Zeroing axb1=R+ Zeroing a1=B Zeroing a1=N Zeroing a1=Q Zeroing a1=R Zeroing

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

KQQRNvKP.pgn lichess.org

Histogram: KQQRN winning vs. KP (log scale)

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Longest KQQRNvKP phases

KQQRNvKP statistics (unique positions)

White wins:
1,366,748,072,102 (99.7%)

Frustrated white wins:
1,222 (0.0%)

Draws:
3,838,705,810 (0.3%)

Black wins:
38,778,770 (0.0%)

KQQRNvKP.json (?)