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 Rb7 draw
3 Re1 draw
4 Re2 draw
5 Re4 draw
6 Rf7 draw
7 Rg7 draw
8 Rh7 draw
9 f7 loss in 2 half-moves
10 Rc7 loss in 2 half-moves
11 Rd7 loss in 2 half-moves
12 Re5 loss in 2 half-moves
13 Re6 loss in 2 half-moves
14 Re8 loss in 2 half-moves
15 Re3 loss in 1 half-moves