Syzygy endgame tablebases

Black is losing with DTZ 20

KRRRvKBB.pgn lichess.org

Histogram: KRRR winning vs. KBB (log scale)

Longest KRRRvKBB phases

KRRRvKBB statistics (unique positions)

White wins:
436,468,843,506 (98.7%)

Draws:
5,668,623,990 (1.3%)

Black wins:
73,872,792 (0.0%)

KRRRvKBB.json (?)

KRRRvKBB dependencies

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

KRRvKBB · KRRRvKB

KRRRvKBB.txt KRRRvKBB.dot