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

EGTB: win in 2 half-moves

# move score
1 Ra3 win in 1 half-moves
2 Kb1 draw
3 Kb2 draw
4 Ra4 draw
5 Ra8 draw
6 Re2 draw
7 Rf2 draw
8 Rg2 draw
9 Rh2 draw
10 Ra5 loss in 2 half-moves
11 Ra6 loss in 2 half-moves
12 Ra7 loss in 2 half-moves
13 Rb2 loss in 2 half-moves
14 Rc2 loss in 2 half-moves
15 Rd2 loss in 2 half-moves