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 Ra4 draw
3 Re4 draw
4 Rf3 draw
5 Rf5 draw
6 Rg4 draw
7 Rh4 draw
8 Rb4 loss in 2 half-moves
9 Rc4 loss in 2 half-moves
10 Rd4 loss in 2 half-moves
11 Rf1 loss in 2 half-moves
12 Rf2 loss in 2 half-moves