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 draw
3 K5b6 draw
4 K7a6 draw
5 K7b6 draw
6 Ka4 draw
7 Ka8 draw
8 Kb4 draw
9 Kb5 draw
10 Kb7 draw
11 Kb8 draw
12 Ra3 draw
13 Rb1 draw
14 Rb2 draw
15 Rb7 draw
16 Rc3 draw
17 Rd3 draw
18 Re3 draw
19 Rg3 draw
20 Rh3 draw
21 Rb4 loss in 2 half-moves
22 Rb5 loss in 2 half-moves
23 Rb6 loss in 2 half-moves
24 Rf3 loss in 2 half-moves