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

EGTB: win in 4 half-moves

# move score
1 Rh8 win in 3 half-moves
2 Ra4 draw
3 Rb4 draw
4 Rc4 draw
5 Rh1 draw
6 Rh5 draw
7 Rh6 loss in 6 half-moves
8 Rh7 loss in 4 half-moves
9 f8=B loss in 2 half-moves
10 f8=K loss in 2 half-moves
11 f8=N loss in 2 half-moves
12 f8=Q loss in 2 half-moves
13 f8=R loss in 2 half-moves
14 Re4 loss in 2 half-moves
15 Rf4 loss in 2 half-moves
16 Rg4 loss in 2 half-moves
17 Rh2 loss in 2 half-moves
18 Rh3 loss in 2 half-moves
19 Rd4 loss in 1 half-moves