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

EGTB: win in 4 half-moves

# move score
1 Rf8 win in 3 half-moves
2 Ra8 draw
3 Rb2 draw
4 Rb5 draw
5 Rb6 draw
6 Rb7 draw
7 Re8 draw
8 Kf7 loss in 2 half-moves
9 Kf8 loss in 2 half-moves
10 Kg5 loss in 2 half-moves
11 Kg6 loss in 2 half-moves
12 Kgg7 loss in 2 half-moves
13 Kgh7 loss in 2 half-moves
14 Kh5 loss in 2 half-moves
15 Kh8 loss in 2 half-moves
16 Khg7 loss in 2 half-moves
17 Khh7 loss in 2 half-moves
18 Rb1 loss in 2 half-moves
19 Rb3 loss in 2 half-moves
20 Rb4 loss in 2 half-moves
21 Rc8 loss in 2 half-moves
22 Rd8 loss in 2 half-moves