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

EGTB: win in 4 half-moves

# move score
1 Kab6 win in 3 half-moves
2 Kaa6 win in 5 half-moves
3 Kba6 win in 5 half-moves
4 Kbb6 win in 5 half-moves
5 Ra4 win in 5 half-moves
6 Kaa4 win in 7 half-moves
7 Kba4 win in 7 half-moves
8 Kbb4 draw
9 Ra1 draw
10 Ra2 draw
11 Rb3 draw
12 Rd3 draw
13 Kab4 loss in 2 half-moves
14 Kc4 loss in 2 half-moves
15 Kc5 loss in 2 half-moves
16 Kc6 loss in 2 half-moves
17 Rc3 loss in 2 half-moves
18 Re3 loss in 2 half-moves
19 Rf3 loss in 2 half-moves
20 Rg3 loss in 2 half-moves
21 Rh3 loss in 2 half-moves