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

EGTB: win in 4 half-moves

# move score
1 Kb4 win in 3 half-moves
2 Ka7 draw
3 Ka8 draw
4 Kb2 draw
5 Kb3 draw
6 Kb7 draw
7 Kc2 draw
8 Kc4 draw
9 Kc8 draw
10 Kd2 draw
11 Kd3 draw
12 Kd4 draw
13 Ra5 draw
14 Rb5 draw
15 Rc5 draw
16 Rd5 draw
17 Re1 draw
18 Re6 draw
19 Re7 draw
20 Re8 draw
21 Rf5 draw
22 Kc7 loss in 2 half-moves
23 Re2 loss in 2 half-moves
24 Re3 loss in 2 half-moves
25 Re4 loss in 2 half-moves
26 Rg5 loss in 2 half-moves
27 Rh5 loss in 2 half-moves