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

EGTB: draw

# move score
1 Re8 draw
2 Rf1 draw
3 Rf2 draw
4 Rf3 draw
5 Rf4 draw
6 Kc7 loss in 2 half-moves
7 Kc8 loss in 2 half-moves
8 Kd7 loss in 2 half-moves
9 Ke7 loss in 2 half-moves
10 Ke8 loss in 2 half-moves
11 Rf5 loss in 2 half-moves
12 Rf6 loss in 2 half-moves
13 Rf7 loss in 2 half-moves
14 Rg8 loss in 2 half-moves
15 Rh8 loss in 2 half-moves