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

EGTB: win in 4 half-moves

# move score
1 Rf6 win in 3 half-moves
2 Ra4 draw
3 Rf1 draw
4 Rf5 draw
5 Rf7 draw
6 Rf8 draw
7 Rg4 draw
8 Rh4 draw
9 Kb7 loss in 2 half-moves
10 Kb8 loss in 2 half-moves
11 Kc6 loss in 2 half-moves
12 Kcc7 loss in 2 half-moves
13 Kcd8 loss in 2 half-moves
14 Kd6 loss in 2 half-moves
15 Kdc7 loss in 2 half-moves
16 Kdd8 loss in 2 half-moves
17 Ke6 loss in 2 half-moves
18 Ke7 loss in 2 half-moves
19 Ke8 loss in 2 half-moves
20 Rb4 loss in 2 half-moves
21 Rc4 loss in 2 half-moves
22 Rd4 loss in 2 half-moves
23 Re4 loss in 2 half-moves
24 Rf2 loss in 2 half-moves
25 Rf3 loss in 2 half-moves