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 5 half-moves
4 Re8 win in 5 half-moves
5 Kgg7 draw
6 Kgh7 draw
7 Khg7 draw
8 Khh7 draw
9 Ra1 draw
10 Rb1 draw
11 Rc1 draw
12 Rd1 draw
13 Re5 draw
14 Re6 draw
15 Rf1 draw
16 Re2 loss in 2 half-moves
17 Re3 loss in 2 half-moves
18 Re4 loss in 2 half-moves
19 Rg1 loss in 2 half-moves
20 Rh1 loss in 2 half-moves