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

EGTB: win in 2 half-moves

# move score
1 Ra8 win in 1 half-moves
2 Ke7 draw
3 Kf7 draw
4 Kg7 draw
5 Kg8 draw
6 Rb8 draw
7 Rc7 draw
8 Rd8 draw
9 Ke8 loss in 8 half-moves
10 Rc6 loss in 4 half-moves
11 Rc1 loss in 2 half-moves
12 Rc2 loss in 2 half-moves
13 Rc3 loss in 2 half-moves
14 Rc4 loss in 2 half-moves
15 Re8 loss in 2 half-moves
16 Rc5 loss in 1 half-moves