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

EGTB: win in 4 half-moves

# move score
1 Rf1 win in 3 half-moves
2 Kf3 draw
3 Kg3 draw
4 Kg6 draw
5 Kg7 draw
6 Kgg5 draw
7 Kgh5 draw
8 Kh3 draw
9 Kh4 draw
10 Kh7 draw
11 Khg5 draw
12 Khh5 draw
13 Ra1 draw
14 Re2 draw
15 Re3 draw
16 Re8 draw
17 Rg1 draw
18 Rh1 draw
19 Kf4 loss in 2 half-moves
20 Kf5 loss in 2 half-moves
21 Rb1 loss in 2 half-moves
22 Rc1 loss in 2 half-moves
23 Rd1 loss in 2 half-moves
24 Re4 loss in 2 half-moves
25 Re5 loss in 2 half-moves
26 Re6 loss in 2 half-moves
27 Re7 loss in 2 half-moves