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

EGTB: win in 4 half-moves

# move score
1 Kf7 win in 3 half-moves
2 Kf8 win in 3 half-moves
3 Re7 win in 3 half-moves
4 Re8 win in 3 half-moves
5 Rh5 win in 3 half-moves
6 Rf5 win in 5 half-moves
7 Kgg7 draw
8 Kgh7 draw
9 Khg7 draw
10 Khh7 draw
11 Rc5 draw
12 Rd5 draw
13 Re4 draw
14 Re6 draw
15 Rg5 draw
16 Ra5 loss in 2 half-moves
17 Rb5 loss in 2 half-moves
18 Re1 loss in 2 half-moves
19 Re2 loss in 2 half-moves
20 Re3 loss in 2 half-moves