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

EGTB: win in 4 half-moves

# move score
1 Kg2 win in 3 half-moves
2 Rg2 win in 3 half-moves
3 Ke2 draw
4 Rh5 draw
5 Rh6 draw
6 Rh7 draw
7 Rh8 draw
8 Ke1 loss in 2 half-moves
9 Ke3 loss in 2 half-moves
10 Kf1 loss in 2 half-moves
11 Kf3 loss in 2 half-moves
12 Kg1 loss in 2 half-moves
13 Kg3 loss in 2 half-moves
14 Rh1 loss in 2 half-moves
15 Rh3 loss in 2 half-moves
16 Rh4 loss in 2 half-moves