Click on the third or sixth rank to set the en passant target square.

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 Ka1 draw
3 Ka2 draw
4 Ka3 draw
5 Ka5 draw
6 Ka7 draw
7 Kb1 draw
8 Kb7 draw
9 Kc1 draw
10 Kc2 draw
11 Kc3 draw
12 Rb8 draw
13 Rc8 draw
14 Rd8 draw
15 Re8 draw
16 Kb3 loss in 2 half-moves
17 Kb5 loss in 2 half-moves
18 Ra7 loss in 2 half-moves
19 Rf8 loss in 2 half-moves
20 Rg8 loss in 2 half-moves
21 Rh8 loss in 2 half-moves