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

EGTB: win in 2 half-moves

# move score
1 Ra7 win in 1 half-moves
2 Kd8 draw
3 Ke7 draw
4 Kf7 draw
5 Kf8 draw
6 Kh2 draw
7 Ra2 draw
8 Ra3 draw
9 Ra4 draw
10 Ra6 draw
11 Ra8 draw
12 Rb1 draw
13 Rc1 draw
14 Rd1 draw
15 Re1 draw
16 Rf1 draw
17 Rg1 draw
18 Kg1 loss in 2 half-moves
19 Kg2 loss in 2 half-moves
20 Kd7 loss in 1 half-moves
21 Ra5 loss in 1 half-moves