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 Kf6 draw
3 Kf7 draw
4 Kg7 draw
5 Kh5 draw
6 Kh6 draw
7 Kh7 draw
8 Rb5 draw
9 Rb6 draw
10 Re7 draw
11 Rg7 draw
12 Rh7 draw
13 Rb1 loss in 4 half-moves
14 Kf5 loss in 2 half-moves
15 Kg5 loss in 2 half-moves
16 Rb2 loss in 2 half-moves
17 Rb3 loss in 2 half-moves
18 Rb4 loss in 2 half-moves
19 Rc7 loss in 2 half-moves
20 Rd7 loss in 2 half-moves
21 Rf7 loss in 2 half-moves
22 Rb8 loss in 1 half-moves