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

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 Kd6 win in 3 half-moves
3 Kc6 win in 7 half-moves
4 Kf7 win in 7 half-moves
5 Ke7 win in 9 half-moves
6 Ke8 win in 9 half-moves
7 Rc8 win in 11 half-moves
8 Kg7 win in 13 half-moves
9 Kg8 win in 13 half-moves
10 Kc4 win in 15 half-moves
11 Kb4 draw
12 Kb5 draw
13 Ra7 draw
14 Rb7 draw
15 Rc6 draw
16 Rd7 draw
17 Rh7 draw
18 Kd4 loss in 2 half-moves
19 Kd5 loss in 2 half-moves
20 Re7 loss in 2 half-moves
21 Rf7 loss in 2 half-moves
22 Rg7 loss in 2 half-moves