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 Kc4 win in 3 half-moves
8 Kaa4 win in 5 half-moves
9 Kab4 win in 5 half-moves
10 Kbb4 win in 5 half-moves
11 Ra8 win in 5 half-moves
12 Rc8 win in 5 half-moves
13 Kc3 win in 9 half-moves
14 Rb6 draw
15 Rb7 draw
16 Rd8 draw
17 Re8 draw
18 Rf8 draw
19 Rb4 loss in 2 half-moves
20 Rb5 loss in 2 half-moves
21 Rg8 loss in 2 half-moves
22 Rh8 loss in 2 half-moves