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

EGTB: win in 4 half-moves

# move score
1 Ra7 win in 3 half-moves
2 Kc8 draw
3 Kd7 draw
4 Ke7 draw
5 Ke8 draw
6 Kg7 draw
7 Kg8 draw
8 Kh7 draw
9 Ra4 draw
10 Ra5 draw
11 Ra6 draw
12 Ra8 draw
13 Rb3 draw
14 Rf3 draw
15 Rg3 draw
16 Rh3 draw
17 Kc7 loss in 2 half-moves
18 Ra1 loss in 2 half-moves
19 Ra2 loss in 2 half-moves
20 Rc3 loss in 2 half-moves
21 Rd3 loss in 2 half-moves
22 Re3 loss in 2 half-moves