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

EGTB: win in 4 half-moves

# move score
1 Rh2 win in 3 half-moves
2 Ra6 draw
3 Rc6 draw
4 Re6 draw
5 Rh1 draw
6 Rh3 draw
7 Rh4 draw
8 Rh5 draw
9 Ke1 loss in 2 half-moves
10 Ke2 loss in 2 half-moves
11 Kf2 loss in 2 half-moves
12 Kg1 loss in 2 half-moves
13 Kg2 loss in 2 half-moves
14 Rb6 loss in 2 half-moves
15 Rd6 loss in 2 half-moves
16 Rf6 loss in 2 half-moves
17 Rg6 loss in 2 half-moves
18 Rh7 loss in 2 half-moves
19 Rh8 loss in 2 half-moves