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 Ra2 draw
3 Rb2 draw
4 Rc2 draw
5 Rd2 draw
6 Rf3 draw
7 Rf4 draw
8 Rf5 draw
9 Rf6 draw
10 Rf8 draw
11 Kb7 loss in 2 half-moves
12 Kb8 loss in 2 half-moves
13 Kcc7 loss in 2 half-moves
14 Kcd7 loss in 2 half-moves
15 Kdc7 loss in 2 half-moves
16 Kdd7 loss in 2 half-moves
17 Ke7 loss in 2 half-moves
18 Ke8 loss in 2 half-moves
19 Re2 loss in 2 half-moves
20 Rf1 loss in 2 half-moves
21 Rg2 loss in 2 half-moves
22 Rh2 loss in 2 half-moves