Syzygy endgame tablebases

Invalid position

The given position is not a legal chess position.

Histogram: KRRB winning vs. KQ (log scale)

Longest KRRBvKQ phases

KRRBvKQ statistics (unique positions)

White wins:
4,924,729,003 (66.3%)
Frustrated white wins:
693,854 (0.0%)
Draws:
2,116,388,889 (28.5%)
Black wins:
385,609,706 (5.2%)
KRRBvKQ.json (?)

KRRBvKQ dependencies

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

KRRBvK · KRBvKQ · KRRvKQ

KRRBvKQ.txt KRRBvKQ.dot