Syzygy endgame tablebases
White to move
Black to move
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Black is losing with DTZ 106
Nc4+
Loss with DTZ 105
Kg2
Loss with DTZ 5
Na4
Loss with DTZ 1
Nd1
Loss with DTZ 1
Nd3
Loss with DTZ 1
Kxf2
Zeroing
This is a blessed loss.
Mate can be forced, but a draw can be achieved under the fifty-move rule.
KRBNNvKN.pgn
lichess.org
Histogram: KRBNN winning vs. KN (log scale)
⋮
Longest KRBNNvKN phases
KRBNN winning with DTZ 18
KRBNN winning with DTZ 107 (frustrated)
KRBNN losing with DTZ 1
KRBNNvKN statistics (unique positions)
White wins:
531,176,510,114 (99.8%)
Frustrated white wins:
2,185,658 (0.0%)
Draws:
966,622,188 (0.2%)
Black wins:
3,555,020 (0.0%)
KRBNNvKN.json
(?)