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

EGTB: win in 4 half-moves

# move score
1 Rb6 win in 3 half-moves
2 Rb7 win in 3 half-moves
3 Rb8 win in 11 half-moves
4 Ka5 draw
5 Ka7 draw
6 Kb5 draw
7 Kb6 draw
8 Kb7 draw
9 Ke7 draw
10 Ke8 draw
11 Kf7 draw
12 Kg7 draw
13 Kg8 draw
14 Ra3 draw
15 Rb4 draw
16 Rb5 draw
17 Rh3 draw
18 Rb1 loss in 2 half-moves
19 Rb2 loss in 2 half-moves
20 Rc3 loss in 2 half-moves
21 Rd3 loss in 2 half-moves
22 Re3 loss in 2 half-moves
23 Rf3 loss in 2 half-moves
24 Rg3 loss in 2 half-moves