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 Kf1 draw
3 Kg1 draw
4 Kg2 draw
5 Kg3 draw
6 Ra5 draw
7 Rf6 draw
8 Rf7 draw
9 Rf8 draw
10 Rg5 draw
11 Rh5 draw
12 Ke1 loss in 2 half-moves
13 Ke2 loss in 2 half-moves
14 Ke3 loss in 2 half-moves
15 Kf3 loss in 2 half-moves
16 Rb5 loss in 2 half-moves
17 Rc5 loss in 2 half-moves
18 Rd5 loss in 2 half-moves
19 Re5 loss in 2 half-moves
20 Rf3 loss in 2 half-moves