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 Kb8 draw
10 Ra2 draw
11 Rb1 draw
12 Rb3 draw
13 Rb6 draw
14 Rb7 draw
15 Rg2 draw
16 Kb5 loss in 2 half-moves
17 Kb7 loss in 2 half-moves
18 Rb4 loss in 2 half-moves
19 Rb5 loss in 2 half-moves
20 Rc2 loss in 2 half-moves
21 Rd2 loss in 2 half-moves
22 Re2 loss in 2 half-moves
23 Rf2 loss in 2 half-moves
24 Rh2 loss in 2 half-moves