Syzygy endgame tablebases

Black is losing with DTZ 143

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


Histogram: KQNN winning vs. KQ (log scale)

Longest KQNNvKQ phases

KQNNvKQ statistics (unique positions)

White wins:
4,385,487,566 (58.2%)
Frustrated white wins:
176,390 (0.0%)
2,277,862,399 (30.2%)
Frustrated black wins:
412,498 (0.0%)
Black wins:
868,553,067 (11.5%)
KQNNvKQ.json (?)