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

EGTB: win in 4 half-moves

# move score
1 Kf5 win in 3 half-moves
2 Kf6 draw
3 Kf7 draw
4 Kg5 draw
5 Kg7 draw
6 Kh5 draw
7 Kh6 draw
8 Kh7 draw
9 Ra3 draw
10 Rb3 draw
11 Rc3 draw
12 Rd3 draw
13 Re4 draw
14 Re5 draw
15 Re6 draw
16 Re7 draw
17 Re8 draw
18 Re1 loss in 2 half-moves
19 Re2 loss in 2 half-moves
20 Rf3 loss in 2 half-moves
21 Rg3 loss in 2 half-moves
22 Rh3 loss in 2 half-moves