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

EGTB: win in 4 half-moves

# move score
1 f7 win in 3 half-moves
2 Re7 win in 3 half-moves
3 Ra8 draw
4 Re3 draw
5 Re4 draw
6 Re5 draw
7 Re6 draw
8 Rf8 draw
9 Rg8 draw
10 Rh8 draw
11 Rb8 loss in 2 half-moves
12 Rc8 loss in 2 half-moves
13 Rd8 loss in 2 half-moves
14 Re1 loss in 2 half-moves
15 Re2 loss in 2 half-moves