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

EGTB: win in 4 half-moves

# move score
1 Kc2 win in 3 half-moves
2 Ka1 draw
3 Ka2 draw
4 Kb2 draw
5 Kb7 draw
6 Kb8 draw
7 Kc1 draw
8 Kc6 draw
9 Kc8 draw
10 Kd6 draw
11 Kd7 draw
12 Kd8 draw
13 Ra3 draw
14 Rb3 draw
15 Rc3 draw
16 Rd3 draw
17 Re4 draw
18 Re5 draw
19 Re6 draw
20 Re7 draw
21 Re8 draw
22 Rf3 draw
23 Kb6 loss in 2 half-moves
24 Re1 loss in 2 half-moves
25 Re2 loss in 2 half-moves
26 Rg3 loss in 2 half-moves
27 Rh3 loss in 2 half-moves