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 Kf4 draw
3 Kf5 draw
4 Kf6 draw
5 Kg4 draw
6 Kg6 draw
7 Kh4 draw
8 Kh5 draw
9 Kh6 draw
10 Ra8 draw
11 Rb3 draw
12 Rb4 draw
13 Rb5 draw
14 Rb6 draw
15 Rb7 draw
16 Rc8 draw
17 Rd8 draw
18 Re8 draw
19 Rg8 draw
20 Rb1 loss in 2 half-moves
21 Rb2 loss in 2 half-moves
22 Rh8 loss in 2 half-moves