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

EGTB: win in 2 half-moves

# move score
1 Ra8 win in 1 half-moves
2 Ka6 draw
3 Kb4 draw
4 Kb5 draw
5 Kb6 draw
6 Ra6 draw
7 Rb7 draw
8 Rc7 draw
9 Ka4 loss in 8 half-moves
10 Rd7 loss in 4 half-moves
11 Re7 loss in 2 half-moves
12 Rf7 loss in 2 half-moves
13 Rg7 loss in 2 half-moves
14 Rh7 loss in 2 half-moves