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