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 K5a6 win in 7 half-moves
3 K5b6 win in 9 half-moves
4 Kb4 win in 9 half-moves
5 Kb5 win in 9 half-moves
6 Kb7 win in 9 half-moves
7 Ra8 win in 9 half-moves
8 Ka4 win in 11 half-moves
9 Rc8 win in 11 half-moves
10 Rh8 win in 11 half-moves
11 K7a6 draw
12 K7b6 draw
13 Ka8 draw
14 Kb8 draw
15 Rg1 draw
16 Rg6 draw
17 Rg7 draw
18 Rd8 loss in 2 half-moves
19 Re8 loss in 2 half-moves
20 Rf8 loss in 2 half-moves
21 Rg2 loss in 2 half-moves
22 Rg3 loss in 2 half-moves
23 Rg4 loss in 2 half-moves
24 Rg5 loss in 2 half-moves