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

EGTB: draw

# move score
1 Rf4 draw
2 Rf5 draw
3 Rf6 draw
4 Rf7 draw
5 Rf8 draw
6 Ke2 loss in 2 half-moves
7 Kf2 loss in 2 half-moves
8 Rf2 loss in 2 half-moves
9 Rf3 loss in 2 half-moves
10 Rg1 loss in 2 half-moves
11 Rh1 loss in 2 half-moves
12 Kd1 loss in 1 half-moves
13 Kd2 loss in 1 half-moves