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

EGTB: win in 4 half-moves

# move score
1 Kcb5 win in 3 half-moves
2 Kcb6 win in 3 half-moves
3 Kcb7 win in 3 half-moves
4 Kd6 win in 3 half-moves
5 Kd7 win in 3 half-moves
6 Ka5 win in 7 half-moves
7 Ka7 win in 7 half-moves
8 Kab5 win in 7 half-moves
9 Kab6 win in 7 half-moves
10 Kc5 win in 7 half-moves
11 Ra7 win in 7 half-moves
12 Rb7 win in 7 half-moves
13 Kab7 draw
14 Rc8 draw
15 Rd7 draw
16 Rh7 draw
17 Kd5 loss in 2 half-moves
18 Re7 loss in 2 half-moves
19 Rf7 loss in 2 half-moves
20 Rg7 loss in 2 half-moves