Syzygy endgame tablebases

Tablebase draw

KRRBvKR.pgn lichess.org

Histogram: KRRB winning vs. KR (log scale)

Longest KRRBvKR phases

KRRBvKR statistics (unique positions)

White wins:
6,999,234,042 (85.3%)
Frustrated white wins:
58,627 (0.0%)
Draws:
1,192,835,879 (14.5%)
Black wins:
8,641,700 (0.1%)
KRRBvKR.json (?)