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

EGTB: win in 4 half-moves

# move score
1 Ka4 win in 3 half-moves
2 Kb4 win in 3 half-moves
3 Rb3 win in 9 half-moves
4 Kb5 win in 11 half-moves
5 Kab6 win in 13 half-moves
6 Ka6 draw
7 Kb7 draw
8 Kb8 draw
9 Kc6 draw
10 Kc8 draw
11 Kcb6 draw
12 Ra1 draw
13 Ra2 draw
14 Ra4 draw
15 Rc3 draw
16 Rd3 draw
17 Rh3 draw
18 Kd6 loss in 2 half-moves
19 Kd7 loss in 2 half-moves
20 Kd8 loss in 2 half-moves
21 Re3 loss in 2 half-moves
22 Rf3 loss in 2 half-moves
23 Rg3 loss in 2 half-moves