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

EGTB: win in 4 half-moves

# move score
1 Rd8 win in 3 half-moves
2 Re8 draw
3 Rf1 draw
4 Rf3 draw
5 Rf5 draw
6 Kb7 loss in 2 half-moves
7 Kb8 loss in 2 half-moves
8 Kc7 loss in 2 half-moves
9 Kd7 loss in 2 half-moves
10 Kd8 loss in 2 half-moves
11 Rf2 loss in 2 half-moves
12 Rf4 loss in 2 half-moves
13 Rf6 loss in 2 half-moves
14 Rf7 loss in 2 half-moves
15 Rg8 loss in 2 half-moves
16 Rh8 loss in 2 half-moves