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 Rc7 draw
3 Re7 draw
4 Rf7 draw
5 Rg7 draw
6 Ka3 loss in 2 half-moves
7 Ka5 loss in 2 half-moves
8 Kb3 loss in 2 half-moves
9 Kb4 loss in 2 half-moves
10 Kb5 loss in 2 half-moves
11 Ra5 loss in 2 half-moves
12 Ra6 loss in 2 half-moves
13 Rb7 loss in 2 half-moves
14 Rd7 loss in 2 half-moves
15 Rh7 loss in 2 half-moves