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

EGTB: win in 2 half-moves

# move score
1 Rb7 win in 1 half-moves
2 Kf7 draw
3 Kg5 draw
4 Kh5 draw
5 Kh6 draw
6 Kh7 draw
7 Ra7 draw
8 Rf7 draw
9 Rg8 draw
10 Rh7 draw
11 Kf5 loss in 2 half-moves
12 Kf6 loss in 2 half-moves
13 Rc7 loss in 2 half-moves
14 Rd7 loss in 2 half-moves
15 Re7 loss in 2 half-moves