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

EGTB: win in 4 half-moves

# move score
1 Ka6 win in 3 half-moves
2 Ka7 win in 3 half-moves
3 Ka8 win in 3 half-moves
4 Kbc6 win in 3 half-moves
5 Kc7 win in 3 half-moves
6 Kc8 win in 3 half-moves
7 Ra8 win in 3 half-moves
8 Kb4 win in 7 half-moves
9 Kb5 win in 7 half-moves
10 Kc4 win in 7 half-moves
11 Kcb6 win in 7 half-moves
12 Kcc6 win in 7 half-moves
13 Kd6 win in 7 half-moves
14 Rc8 win in 7 half-moves
15 Kbb6 draw
16 Rd8 draw
17 Rh8 draw
18 Kd4 loss in 2 half-moves
19 Kd5 loss in 2 half-moves
20 Re8 loss in 2 half-moves
21 Rf8 loss in 2 half-moves
22 Rg8 loss in 2 half-moves