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 Kc7 loss in 8 half-moves
3 Kb6 loss in 2 half-moves
4 Kb7 loss in 2 half-moves
5 Kd6 loss in 2 half-moves
6 Kd7 loss in 2 half-moves
7 Rb8 loss in 2 half-moves
8 Rc7 loss in 2 half-moves
9 Rd8 loss in 2 half-moves
10 Re8 loss in 2 half-moves
11 Rf8 loss in 2 half-moves
12 Rg8 loss in 2 half-moves
13 Rh8 loss in 2 half-moves
14 Kb5 loss in 1 half-moves
15 Kc5 loss in 1 half-moves
16 Kd5 loss in 1 half-moves