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

EGTB: win in 2 half-moves

# move score
1 Rh8 win in 1 half-moves
2 Kc7 draw
3 Ke7 draw
4 Ra8 draw
5 Rb8 draw
6 Rc6 draw
7 Rd8 draw
8 Kd6 loss in 6 half-moves
9 Kd8 loss in 6 half-moves
10 Ke6 loss in 6 half-moves
11 Rc5 loss in 6 half-moves
12 Rc7 loss in 6 half-moves
13 Kc6 loss in 4 half-moves
14 Ke8 loss in 4 half-moves
15 Rc1 loss in 2 half-moves
16 Rc2 loss in 2 half-moves
17 Rc3 loss in 2 half-moves
18 Rc4 loss in 2 half-moves
19 Re8 loss in 2 half-moves
20 Rf8 loss in 2 half-moves
21 Rg8 loss in 2 half-moves