Syzygy endgame tablebases

Invalid position

The given position is not a legal chess position.

Histogram: KQRR winning vs. KB (log scale)

Longest KQRRvKB phases

KQRRvKB statistics (unique positions)

White wins:
7,742,057,009 (99.9%)
Draws:
4,411,955 (0.1%)
KQRRvKB.json (?)

KQRRvKB dependencies

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

KRRvKB · KQRvKB · KQRRvK

KQRRvKB.txt KQRRvKB.dot