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

EGTB: win in 4 half-moves

# move score
1 K8a7 win in 3 half-moves
2 Ka8 win in 3 half-moves
3 Kb5 win in 3 half-moves
4 Kc8 win in 3 half-moves
5 K8c7 draw
6 Re7 draw
7 K6a7 loss in 2 half-moves
8 K6c7 loss in 2 half-moves
9 Ka5 loss in 2 half-moves
10 Ka6 loss in 2 half-moves
11 Kc5 loss in 2 half-moves
12 Kc6 loss in 2 half-moves
13 Ra7 loss in 2 half-moves
14 Rc7 loss in 2 half-moves
15 Rd7 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