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

EGTB: win in 2 half-moves

# move score
1 Ra2 win in 1 half-moves
2 Ka7 draw
3 Ka8 draw
4 Kb7 draw
5 Ra1 draw
6 Ra8 draw
7 Rb3 draw
8 Rc3 draw
9 Kc7 loss in 4 half-moves
10 Kc8 loss in 4 half-moves
11 Rd3 loss in 4 half-moves
12 Ra4 loss in 2 half-moves
13 Ra5 loss in 2 half-moves
14 Ra6 loss in 2 half-moves
15 Ra7 loss in 2 half-moves
16 Rf3 loss in 2 half-moves
17 Rg3 loss in 2 half-moves
18 Rh3 loss in 2 half-moves
19 Re3 loss in 1 half-moves