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

EGTB: win in 2 half-moves

# move score
1 Re7 win in 1 half-moves
2 Kb6 draw
3 Kb7 draw
4 Kd5 draw
5 Kd6 draw
6 Kd7 draw
7 Rb7 draw
8 Rd7 draw
9 Rf7 draw
10 Rg7 draw
11 Rh7 draw
12 Kb5 loss in 2 half-moves
13 Kc5 loss in 2 half-moves
14 Ra7 loss in 2 half-moves
15 Rc8 loss in 2 half-moves