Syzygy endgame tablebases

Black is losing with DTZ 101

This is a blessed loss. Mate can be forced, but a draw can be achieved under the fifty-move rule.

KRRBvKP.pgn lichess.org

Histogram: KRRB winning vs. KP (log scale)

Longest KRRBvKP phases

KRRBvKP statistics (unique positions)

White wins:
27,490,738,818 (99.1%)
Frustrated white wins:
74,348 (0.0%)
Draws:
218,822,138 (0.8%)
Black wins:
20,903,020 (0.1%)
KRRBvKP.json (?)

KRRBvKP dependencies

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

KRRBvKQ · KRRBvKR · KRBvKP · KRRBvKB · KRRvKP · KRRBvKN · KRRBvK

KRRBvKP.txt KRRBvKP.dot