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

EGTB: win in 4 half-moves

# move score
1 Kaa2 win in 3 half-moves
2 Kab2 win in 3 half-moves
3 Kba2 win in 3 half-moves
4 Kba4 win in 3 half-moves
5 Kbb2 win in 3 half-moves
6 Kc2 win in 3 half-moves
7 Kaa4 win in 5 half-moves
8 Kbb4 win in 5 half-moves
9 Ra7 win in 5 half-moves
10 Rc7 win in 5 half-moves
11 Kab4 win in 7 half-moves
12 Kc3 draw
13 Rb5 draw
14 Rb6 draw
15 Rb8 draw
16 Rd7 draw
17 Re7 draw
18 Kc4 loss in 2 half-moves
19 Rb4 loss in 2 half-moves
20 Rf7 loss in 2 half-moves
21 Rg7 loss in 2 half-moves
22 Rh7 loss in 2 half-moves