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

EGTB: win in 4 half-moves

# move score
1 Kc5 win in 3 half-moves
2 Kba5 win in 5 half-moves
3 Kbb6 win in 5 half-moves
4 Kc6 win in 7 half-moves
5 Ka4 win in 11 half-moves
6 Kaa5 draw
7 Ra8 draw
8 Rb7 draw
9 Kab6 loss in 2 half-moves
10 Kb4 loss in 2 half-moves
11 Kb7 loss in 2 half-moves
12 Kc4 loss in 2 half-moves
13 Rc7 loss in 2 half-moves
14 Rd7 loss in 2 half-moves
15 Re7 loss in 2 half-moves
16 Rf7 loss in 2 half-moves
17 Rg7 loss in 2 half-moves
18 Rh7 loss in 2 half-moves