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

EGTB: win in 4 half-moves

# move score
1 Kc3 win in 3 half-moves
2 Kb5 win in 11 half-moves
3 Kb6 win in 13 half-moves
4 Ra2 win in 13 half-moves
5 Kb7 win in 15 half-moves
6 Rb2 win in 15 half-moves
7 Ka5 draw
8 Ka7 draw
9 Kc1 draw
10 Kd1 draw
11 Ke1 draw
12 Ke2 draw
13 Rc1 draw
14 Rc3 draw
15 Rc7 draw
16 Rc8 draw
17 Kd3 loss in 2 half-moves
18 Ke3 loss in 2 half-moves
19 Rc4 loss in 2 half-moves
20 Rc5 loss in 2 half-moves
21 Rc6 loss in 2 half-moves