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

EGTB: win in 2 half-moves

# move score
1 Rf4 win in 1 half-moves
2 Rf8 win in 1 half-moves
3 Kf1 loss in 2 half-moves
4 Kf2 loss in 2 half-moves
5 Kf3 loss in 2 half-moves
6 Kg1 loss in 2 half-moves
7 Kg3 loss in 2 half-moves
8 Kh1 loss in 2 half-moves
9 Kh2 loss in 2 half-moves
10 Kh3 loss in 2 half-moves
11 Rb7 loss in 2 half-moves
12 Rc7 loss in 2 half-moves
13 Rd7 loss in 2 half-moves
14 Re7 loss in 2 half-moves
15 Rf1 loss in 2 half-moves
16 Rf2 loss in 2 half-moves
17 Rf3 loss in 2 half-moves
18 Ra7 loss in 1 half-moves
19 Rf5 loss in 1 half-moves
20 Rf6 loss in 1 half-moves
21 Rg7 loss in 1 half-moves
22 Rh7 loss in 1 half-moves