Syzygy endgame tablebases

Black is losing with DTZ 543

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

KQNNvKQB.pgn lichess.org

Histogram: KQNN winning vs. KQB (log scale)

Longest KQNNvKQB phases

KQNNvKQB statistics

143,109,830,543 (34.8%)
3,201,538,860 (0.8%)
180,171,137,538 (43.8%)
2,646,638 (0.0%)
85,032,559,221 (20.7%)
KQNNvKQB.json (?)