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

EGTB: win in 2 half-moves

# move score
1 Ra7 win in 1 half-moves
2 Kd6 loss in 20 half-moves
3 Kd8 loss in 20 half-moves
4 Ke6 loss in 12 half-moves
5 Kf7 loss in 10 half-moves
6 Rb6 loss in 10 half-moves
7 Rb8 loss in 10 half-moves
8 Kd7 loss in 8 half-moves
9 Rc7 loss in 8 half-moves
10 Ke8 loss in 6 half-moves
11 Kf8 loss in 6 half-moves
12 Kf6 loss in 2 half-moves
13 Rb2 loss in 2 half-moves
14 Rb3 loss in 2 half-moves
15 Rb4 loss in 2 half-moves
16 Rb5 loss in 2 half-moves
17 Rd7 loss in 2 half-moves
18 Rb1 loss in 1 half-moves