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

EGTB: win in 2 half-moves

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