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

EGTB: win in 4 half-moves

# move score
1 Kc5 win in 3 half-moves
2 Ka5 draw
3 Ka6 draw
4 Ka7 draw
5 Kb5 draw
6 Kb7 draw
7 Kc6 draw
8 Kc7 draw
9 Ke2 draw
10 Kg1 draw
11 Kg2 draw
12 Ra2 draw
13 Rb4 draw
14 Rc2 draw
15 Rd2 draw
16 Re2 draw
17 Ke1 loss in 2 half-moves
18 Ke3 loss in 2 half-moves
19 Kf1 loss in 2 half-moves
20 Kf3 loss in 2 half-moves
21 Kg3 loss in 2 half-moves
22 Rb1 loss in 2 half-moves
23 Rb3 loss in 2 half-moves
24 Rb5 loss in 2 half-moves