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 Ke7 draw
3 Ke8 draw
4 Kf7 draw
5 Kg7 draw
6 Rc8 draw
7 Rd4 draw
8 Rd7 draw
9 Kg8 loss in 10 half-moves
10 Rd5 loss in 4 half-moves
11 Ra8 loss in 2 half-moves
12 Rd1 loss in 2 half-moves
13 Rd2 loss in 2 half-moves
14 Rd3 loss in 2 half-moves
15 Rd6 loss in 2 half-moves
16 Re8 loss in 2 half-moves