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 Ka3 draw
3 Ka5 draw
4 Kb3 draw
5 Kb4 draw
6 Kd7 draw
7 Kd8 draw
8 Ke8 draw
9 Kf7 draw
10 Kf8 draw
11 Ra6 draw
12 Ra7 draw
13 Rb8 draw
14 Rc8 draw
15 Rd8 draw
16 Re8 draw
17 Rh8 draw
18 Kd6 loss in 2 half-moves
19 Ke6 loss in 2 half-moves
20 Kf6 loss in 2 half-moves
21 Ra5 loss in 2 half-moves
22 Rf8 loss in 2 half-moves
23 Rg8 loss in 2 half-moves