Syzygy endgame tablebases
White to move
Black to move
JavaScript required for interactive board view.
White is winning with DTZ 1
Rxd8
DTM 8
Zeroing
Ka7
Draw
Kb7
Draw
Kc7
Draw
KRRBvKR.pgn
lichess.org
Histogram: KRRB winning vs. KR (log scale)
⋮
Longest KRRBvKR phases
KRRB winning with DTZ 62
KRRB winning with DTZ 111 (frustrated)
KRRB losing with DTZ 3
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
(?)