Syzygy endgame tablebases

Black is losing with DTZ 6

Qh7+ Loss with DTZ 5 Qf6 Loss with DTZ 3 Qg7 Loss with DTZ 3 Qh2 Loss with DTZ 3 Qh3 Loss with DTZ 3 Qh4 Loss with DTZ 3 Qh5 Loss with DTZ 3 Qh6 Loss with DTZ 3 Kd2 Loss with DTZ 1 Qa1+ Loss with DTZ 1 Qb2+ Loss with DTZ 1 Qc3 Loss with DTZ 1 Qd4 Loss with DTZ 1 Qe5 Loss with DTZ 1 Qf8 Loss with DTZ 1 Qg8 Loss with DTZ 1 Qh1 Loss with DTZ 1 Qxe8 Zeroing

KRRBNvKQ.pgn lichess.org

Histogram: KRRBN winning vs. KQ (log scale)

Longest KRRBNvKQ phases

KRRBNvKQ statistics (unique positions)

White wins:
334,411,661,737 (79.2%)

Frustrated white wins:
58,336,799 (0.0%)

Draws:
81,928,183,430 (19.4%)

Black wins:
5,795,099,484 (1.4%)

KRRBNvKQ.json (?)

KRRBNvKQ dependencies

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

KRRBNvK · KRBNvKQ · KRRNvKQ · KRRBvKQ

KRRBNvKQ.txt KRRBNvKQ.dot