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

EGTB: win in 6 half-moves

# move score
1 f6 win in 5 half-moves
2 Ra4 loss in 2 half-moves
3 Rb4 loss in 2 half-moves
4 Rc4 loss in 2 half-moves
5 Rd4 loss in 2 half-moves
6 Re4 loss in 2 half-moves
7 Rf4 loss in 2 half-moves
8 Rg1 loss in 2 half-moves
9 Rg2 loss in 2 half-moves
10 Rg3 loss in 2 half-moves
11 Rg5 loss in 2 half-moves
12 Rg6 loss in 2 half-moves
13 Rg7 loss in 2 half-moves
14 Rg8 loss in 2 half-moves
15 Rh4 loss in 2 half-moves