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 Rf5 draw
3 Kf1 loss in 2 half-moves
4 Kgg1 loss in 2 half-moves
5 Kgg3 loss in 2 half-moves
6 Kgh1 loss in 2 half-moves
7 Kgh3 loss in 2 half-moves
8 Khg1 loss in 2 half-moves
9 Khg3 loss in 2 half-moves
10 Khh1 loss in 2 half-moves
11 Khh3 loss in 2 half-moves
12 Ra2 loss in 2 half-moves
13 Rb2 loss in 2 half-moves
14 Rc2 loss in 2 half-moves
15 Rd2 loss in 2 half-moves
16 Re2 loss in 2 half-moves
17 Rf1 loss in 2 half-moves
18 Rf6 loss in 2 half-moves
19 Rf7 loss in 2 half-moves
20 Rf8 loss in 2 half-moves
21 Kf3 loss in 1 half-moves
22 Rf3 loss in 1 half-moves