Syzygy endgame tablebases
White to move
Black to move
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Black is losing with DTZ 101
a1=Q+
Zeroing
Ka5
Loss with DTZ 1
Ka6
Loss with DTZ 1
Kb5
Loss with DTZ 1
a1=R+
Zeroing
a1=B
Zeroing
a1=N
Zeroing
Kxc7
Zeroing
This is a blessed loss.
Mate can be forced, but a draw can be achieved under the fifty-move rule.
KRRRRvKP.pgn
lichess.org
Histogram: KRRRR winning vs. KP (log scale)
⋮
Longest KRRRRvKP phases
KRRRR winning with DTZ 6
KRRRR winning with DTZ 101 (frustrated)
KRRRR losing with DTZ 2
KRRRRvKP statistics
1,423,393,540,656 (99.8%)
20,520 (0.0%)
2,934,508,968 (0.2%)
69,856,512 (0.0%)
KRRRRvKP.json
(?)