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

EGTB: win in 4 half-moves

# move score
1 Kb5 win in 3 half-moves
2 Ka5 draw
3 Ka7 draw
4 Kc1 draw
5 Kc2 draw
6 Kc3 draw
7 Kd1 draw
8 Kd3 draw
9 Ke1 draw
10 Ke2 draw
11 Ra7 draw
12 Rc8 draw
13 Kb6 loss in 2 half-moves
14 Kb7 loss in 2 half-moves
15 Ke3 loss in 2 half-moves
16 Rb8 loss in 2 half-moves
17 Rd8 loss in 2 half-moves
18 Re8 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