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

EGTB: win in 2 half-moves

# move score
1 Ra8 win in 1 half-moves
2 Khh8 win in 3 half-moves
3 Rh8 win in 3 half-moves
4 Kf6 loss in 2 half-moves
5 Kf7 loss in 2 half-moves
6 Kf8 loss in 2 half-moves
7 Kgg6 loss in 2 half-moves
8 Kgh6 loss in 2 half-moves
9 Kgh8 loss in 2 half-moves
10 Khg6 loss in 2 half-moves
11 Khh6 loss in 2 half-moves
12 Rb8 loss in 2 half-moves
13 Rc8 loss in 2 half-moves
14 Rd8 loss in 2 half-moves
15 Re8 loss in 2 half-moves
16 Rf8 loss in 2 half-moves