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

EGTB: win in 4 half-moves

# move score
1 Kh5 win in 3 half-moves
2 Kg4 win in 5 half-moves
3 Rh3 win in 5 half-moves
4 Kh3 draw
5 Rg1 draw
6 Rg2 draw
7 Rg4 draw
8 Rg5 draw
9 Kg5 loss in 2 half-moves
10 Ra3 loss in 2 half-moves
11 Rb3 loss in 2 half-moves
12 Rc3 loss in 2 half-moves
13 Rd3 loss in 2 half-moves
14 Re3 loss in 2 half-moves
15 Rf3 loss in 2 half-moves
16 Rg6 loss in 2 half-moves
17 Rg8 loss in 2 half-moves
18 Rg7 loss in 1 half-moves