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

EGTB: win in 4 half-moves

# move score
1 Kc6 win in 3 half-moves
2 Kg7 win in 5 half-moves
3 Kg8 win in 5 half-moves
4 Kb4 draw
5 Kc4 draw
6 Kd4 draw
7 Kh7 draw
8 Rc6 draw
9 Rc7 draw
10 Rf8 draw
11 Kb5 loss in 2 half-moves
12 Kb6 loss in 2 half-moves
13 Kd5 loss in 2 half-moves
14 Kd6 loss in 2 half-moves
15 Ra8 loss in 2 half-moves
16 Rb8 loss in 2 half-moves
17 Rd8 loss in 2 half-moves
18 Re8 loss in 2 half-moves
19 Rg8 loss in 2 half-moves