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

EGTB: win in 4 half-moves

# move score
1 Rg7 win in 3 half-moves
2 Rh7 win in 3 half-moves
3 Rf8 win in 5 half-moves
4 Ke3 draw
5 Ke4 draw
6 Ke5 draw
7 Kf3 draw
8 Kf5 draw
9 Kg3 draw
10 Kg4 draw
11 Kg5 draw
12 Kg7 draw
13 Kg8 draw
14 Kh7 draw
15 Rd7 draw
16 Re7 draw
17 Ra7 loss in 2 half-moves
18 Rb7 loss in 2 half-moves
19 Rc7 loss in 2 half-moves
20 Rf5 loss in 2 half-moves
21 Rf6 loss in 2 half-moves