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

EGTB: win in 4 half-moves

# move score
1 Re8 win in 3 half-moves
2 Ke7 draw
3 Ke8 draw
4 Kfg7 draw
5 Kfg8 draw
6 Khg7 draw
7 Khg8 draw
8 Rc1 draw
9 Rc2 draw
10 Rc6 draw
11 Rc7 draw
12 Rd8 draw
13 Kf7 loss in 2 half-moves
14 Kh7 loss in 2 half-moves
15 Ra8 loss in 2 half-moves
16 Rb8 loss in 2 half-moves
17 Rc3 loss in 2 half-moves
18 Rc4 loss in 2 half-moves
19 Rc5 loss in 2 half-moves