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

EGTB: win in 4 half-moves

# move score
1 Ka7 win in 3 half-moves
2 Kb7 win in 3 half-moves
3 Ra7 win in 3 half-moves
4 Kab5 win in 7 half-moves
5 Kab6 win in 7 half-moves
6 Kd6 win in 7 half-moves
7 Kc6 win in 9 half-moves
8 Kd5 win in 13 half-moves
9 Ka5 draw
10 Kb4 draw
11 Kc4 draw
12 Kcb5 draw
13 Kcb6 draw
14 Kd4 draw
15 Rb8 draw
16 Rc8 draw
17 Rh8 draw
18 Rd8 loss in 2 half-moves
19 Re8 loss in 2 half-moves
20 Rf8 loss in 2 half-moves
21 Rg8 loss in 2 half-moves