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

EGTB: win in 4 half-moves

# move score
1 Rh4 win in 3 half-moves
2 Ra1 draw
3 Rb1 draw
4 Rd1 draw
5 Kf4 loss in 2 half-moves
6 Kf5 loss in 2 half-moves
7 Kf6 loss in 2 half-moves
8 Kgg4 loss in 2 half-moves
9 Kgg6 loss in 2 half-moves
10 Kgh4 loss in 2 half-moves
11 Kgh6 loss in 2 half-moves
12 Khg4 loss in 2 half-moves
13 Khg6 loss in 2 half-moves
14 Khh4 loss in 2 half-moves
15 Khh6 loss in 2 half-moves
16 Rc1 loss in 2 half-moves
17 Re1 loss in 2 half-moves
18 Rf1 loss in 2 half-moves
19 Rg1 loss in 2 half-moves
20 Rh2 loss in 2 half-moves
21 Rh3 loss in 2 half-moves