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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Kc5 loss in 2 half-moves
3 Kc6 loss in 2 half-moves
4 Kc7 loss in 2 half-moves
5 Kd5 loss in 2 half-moves
6 Kdd7 loss in 2 half-moves
7 Kde7 loss in 2 half-moves
8 Ke5 loss in 2 half-moves
9 Ke6 loss in 2 half-moves
10 Ked7 loss in 2 half-moves
11 Kee7 loss in 2 half-moves
12 Kf7 loss in 2 half-moves
13 Kf8 loss in 2 half-moves
14 Ra8 loss in 2 half-moves
15 Rc8 loss in 2 half-moves
16 Rd7 loss in 2 half-moves