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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Kd2 draw
3 Ke1 draw
4 Ke2 draw
5 Rc8 draw
6 Rd8 draw
7 Re8 draw
8 Rf1 draw
9 Rf4 draw
10 Rf5 draw
11 Kc1 loss in 2 half-moves
12 Kc2 loss in 2 half-moves
13 Ra8 loss in 2 half-moves
14 Rf2 loss in 2 half-moves
15 Rf3 loss in 2 half-moves
16 Rf6 loss in 2 half-moves
17 Rf7 loss in 2 half-moves
18 Rg8 loss in 2 half-moves
19 Rh8 loss in 2 half-moves