Syzygy endgame tablebases

Black is losing with DTZ 112

Na2+ Loss with DTZ 111

Ne1 Loss with DTZ 3 Ne5 Loss with DTZ 3 Nf2 Loss with DTZ 3 Nb3 Loss with DTZ 1 Nb2 Loss with DTZ 1 Nc5 Loss with DTZ 1 Nf4 Loss with DTZ 1 Kd1 Loss with DTZ 1 Ke1 Loss with DTZ 1 Kf2 Loss with DTZ 1 Kf3 Loss with DTZ 1 Nxb4 Zeroing Kxf1 Zeroing

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

KQRNvKNN.pgn lichess.org

Histogram: KQRN winning vs. KNN (log scale)

⋮

Longest KQRNvKNN phases

KQRNvKNN statistics (unique positions)

White wins:
451,624,307,313 (95.9%)

Frustrated white wins:
1,963,043,313 (0.4%)

Draws:
17,189,131,060 (3.7%)

Black wins:
19,204,698 (0.0%)

KQRNvKNN.json (?)

KQRNvKNN dependencies

To probe all KQRNvKNN positions, these tables and their transitive dependencies are also required:

KRNvKNN · KQNvKNN · KQRvKNN · KQRNvKN

KQRNvKNN.txt KQRNvKNN.dot