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

EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Kc2 draw
3 Kc3 draw
4 Kd2 draw
5 Kd4 draw
6 Ke2 draw
7 Ke3 draw
8 Ke4 draw
9 Rc8 draw
10 Rd8 draw
11 Re8 draw
12 Rf8 draw
13 Rh1 draw
14 Rh2 draw
15 Rh3 draw
16 Rh4 draw
17 Rh5 draw
18 Rh7 draw
19 Kc4 loss in 2 half-moves
20 Ra8 loss in 2 half-moves
21 Rg8 loss in 2 half-moves
22 Rh6 loss in 2 half-moves