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

EGTB: win in 4 half-moves

# move score
1 K8c7 win in 3 half-moves
2 K8e7 win in 3 half-moves
3 K7e8 win in 5 half-moves
4 K8e8 win in 5 half-moves
5 Re8 win in 5 half-moves
6 Rf6 win in 5 half-moves
7 K7c7 draw
8 K7c8 draw
9 K7e7 draw
10 K8c8 draw
11 Rf1 draw
12 Rf5 draw
13 Rf7 draw
14 Rg8 draw
15 Rh8 draw
16 Kc6 loss in 2 half-moves
17 Kd6 loss in 2 half-moves
18 Ke6 loss in 2 half-moves
19 Rf2 loss in 2 half-moves
20 Rf3 loss in 2 half-moves
21 Rf4 loss in 2 half-moves