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 Kf1 draw
3 Kf2 draw
4 Kgg2 draw
5 Kgh2 draw
6 Khg2 draw
7 Khh2 draw
8 Rb4 draw
9 Rf4 draw
10 Rg4 draw
11 Rh3 draw
12 Rh8 draw
13 Ra4 loss in 2 half-moves
14 Rc4 loss in 2 half-moves
15 Rd4 loss in 2 half-moves
16 Re4 loss in 2 half-moves
17 Rh5 loss in 2 half-moves
18 Rh6 loss in 2 half-moves
19 Rh7 loss in 2 half-moves