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

EGTB: win in 4 half-moves

# move score
1 Kd8 win in 3 half-moves
2 Rh4 draw
3 Rh5 draw
4 Kf8 loss in 12 half-moves
5 Kd7 loss in 2 half-moves
6 Ke7 loss in 2 half-moves
7 Kf7 loss in 2 half-moves
8 Rf8 loss in 2 half-moves
9 Rg8 loss in 2 half-moves
10 Rh1 loss in 2 half-moves
11 Rh2 loss in 2 half-moves
12 Rh3 loss in 2 half-moves
13 Rh6 loss in 2 half-moves
14 Rh7 loss in 2 half-moves