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

EGTB: win in 2 half-moves

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