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

EGTB: win in 2 half-moves

# move score
1 Ra5 win in 1 half-moves
2 Ka6 draw
3 Ka8 draw
4 Kb6 draw
5 Kb7 draw
6 Kb8 draw
7 Ra1 draw
8 Ra3 draw
9 Ra4 draw
10 Rb2 draw
11 Rc2 draw
12 Rd2 loss in 4 half-moves
13 Rf2 loss in 4 half-moves
14 Ra6 loss in 2 half-moves
15 Rg2 loss in 2 half-moves
16 Rh2 loss in 2 half-moves
17 Re2 loss in 1 half-moves