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

EGTB: win in 4 half-moves

# move score
1 Kg6 win in 3 half-moves
2 Kg8 win in 3 half-moves
3 K6g7 draw
4 K8g7 draw
5 Ra7 draw
6 Rb7 draw
7 Rc7 draw
8 Rd7 draw
9 Kg5 loss in 2 half-moves
10 Kh5 loss in 2 half-moves
11 Re7 loss in 2 half-moves
12 Rf7 loss in 2 half-moves
13 Rg7 loss in 2 half-moves