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 Kd1 draw
3 Kd2 draw
4 Rf3 draw
5 Rf5 draw
6 Rf7 draw
7 Rf8 draw
8 Rg2 draw
9 Rh2 draw
10 Kd3 loss in 2 half-moves
11 Ke1 loss in 2 half-moves
12 Ke3 loss in 2 half-moves
13 Kf1 loss in 2 half-moves
14 Kf3 loss in 2 half-moves
15 Rf1 loss in 2 half-moves
16 Rf6 loss in 2 half-moves