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

EGTB: win in 2 half-moves

# move score
1 Kb5 win in 1 half-moves
2 Rc6 win in 1 half-moves
3 Rd6 win in 1 half-moves
4 Re6 win in 1 half-moves
5 Ka5 draw
6 Ra5 draw
7 Ka3 loss in 2 half-moves
8 Kb3 loss in 2 half-moves
9 Kb4 loss in 2 half-moves
10 Ra7 loss in 2 half-moves
11 Ra8 loss in 2 half-moves
12 Rb6 loss in 2 half-moves
13 Rf6 loss in 2 half-moves
14 Rh6 loss in 2 half-moves
15 Rg6 loss in 1 half-moves