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 Kc5 draw
3 Kc6 draw
4 Kc7 draw
5 Kd5 draw
6 Rb7 draw
7 Rd8 draw
8 Re7 draw
9 Rf7 draw
10 Rh7 draw
11 Ke5 loss in 2 half-moves
12 Ke6 loss in 2 half-moves
13 Ke7 loss in 2 half-moves
14 Rc7 loss in 2 half-moves
15 Rg7 loss in 2 half-moves