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

EGTB: win in 4 half-moves

# move score
1 Rf2 win in 3 half-moves
2 Ra8 draw
3 Re8 draw
4 Rf5 draw
5 Rf6 draw
6 Rf7 draw
7 Rg8 draw
8 Rh8 draw
9 Rb8 loss in 2 half-moves
10 Rc8 loss in 2 half-moves
11 Rd8 loss in 2 half-moves
12 Rf1 loss in 2 half-moves
13 Rf3 loss in 2 half-moves
14 Rf4 loss in 2 half-moves