Syzygy endgame tablebases
White to move
Black to move
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Black is winning with DTZ 154
Ke3
Win with DTZ 153
Nb2
Draw
Nb4
Draw
Nc1
Draw
Nc5
Draw
Ne1
Draw
Ne5
Draw
Nf4
Draw
Ke1
Draw
Ke2
Draw
Kf1
Draw
Kg1
Draw
Re3
Draw
Rf3
Draw
Rg1+
Draw
Rg2
Draw
Rg4
Draw
Rg7
Draw
Rg8
Draw
Rh3
Draw
Rg5
Loss with DTZ 1
Rg6
Loss with DTZ 1
This is a cursed win.
Mate can be forced, but a draw can be achieved under the fifty-move rule.
KBNNvKRN.pgn
lichess.org
Histogram: KBNN losing vs. KRN (log scale)
⋮
Longest KBNNvKRN phases
KBNN winning with DTZ 51
KBNN winning with DTZ 125 (frustrated)
KBNN losing with DTZ 155 (frustrated)
KBNN losing with DTZ 59
KBNNvKRN statistics (unique positions)
White wins:
65,897,337,536 (12.7%)
Frustrated white wins:
42,383,882 (0.0%)
Draws:
416,811,719,583 (80.2%)
Frustrated black wins:
6,797,149,089 (1.3%)
Black wins:
29,896,220,286 (5.8%)
KBNNvKRN.json
(?)