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

EGTB: win in 4 half-moves

# move score
1 Rf7 win in 3 half-moves
2 Nb6 loss in 2 half-moves
3 Nb8 loss in 2 half-moves
4 Nc5 loss in 2 half-moves
5 Ne5 loss in 2 half-moves
6 Nf6 loss in 2 half-moves
7 Nf8 loss in 2 half-moves
8 Rb2 loss in 2 half-moves
9 Rd2 loss in 2 half-moves
10 Re2 loss in 2 half-moves
11 Rf1 loss in 2 half-moves
12 Rf3 loss in 2 half-moves
13 Rf4 loss in 2 half-moves
14 Rf5 loss in 2 half-moves
15 Rf6 loss in 2 half-moves
16 Rf8 loss in 2 half-moves
17 Rg2 loss in 2 half-moves
18 Rh2 loss in 2 half-moves
19 Ra2 loss in 1 half-moves
20 Rc2 loss in 1 half-moves