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

EGTB: win in 4 half-moves

# move score
1 Kg5 win in 3 half-moves
2 Kd7 draw
3 Kd8 draw
4 Kf7 draw
5 Kf8 draw
6 Kg3 draw
7 Kg4 draw
8 Kh3 draw
9 Kh5 draw
10 Rd7 draw
11 Re2 draw
12 Re6 draw
13 Rf7 draw
14 Rg7 draw
15 Rh7 draw
16 Ra7 loss in 2 half-moves
17 Rb7 loss in 2 half-moves
18 Rc7 loss in 2 half-moves
19 Re1 loss in 2 half-moves
20 Re3 loss in 2 half-moves
21 Re4 loss in 2 half-moves
22 Re5 loss in 2 half-moves