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 Kb4 loss in 2 half-moves
3 Kb5 loss in 2 half-moves
4 Kc5 loss in 2 half-moves
5 Kd4 loss in 2 half-moves
6 Kd5 loss in 2 half-moves
7 Rb8 loss in 2 half-moves
8 Rc5 loss in 2 half-moves
9 Rc6 loss in 2 half-moves
10 Rc7 loss in 2 half-moves
11 Rd8 loss in 2 half-moves
12 Re8 loss in 2 half-moves
13 Rf8 loss in 2 half-moves
14 Rg8 loss in 2 half-moves
15 Rh8 loss in 2 half-moves
16 Kb3 loss in 1 half-moves
17 Kc3 loss in 1 half-moves
18 Kd3 loss in 1 half-moves