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

EGTB: win in 4 half-moves

# move score
1 Kab4 win in 3 half-moves
2 Kaa4 win in 5 half-moves
3 Kba4 win in 5 half-moves
4 Kbb4 win in 5 half-moves
5 Kc6 win in 5 half-moves
6 Ra6 win in 5 half-moves
7 Kaa6 win in 7 half-moves
8 Kba6 win in 7 half-moves
9 Kbb6 draw
10 Kc5 draw
11 Ra8 draw
12 Rb7 draw
13 Rd7 draw
14 Kab6 loss in 2 half-moves
15 Kc4 loss in 2 half-moves
16 Rc7 loss in 2 half-moves
17 Re7 loss in 2 half-moves
18 Rf7 loss in 2 half-moves
19 Rg7 loss in 2 half-moves
20 Rh7 loss in 2 half-moves