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

EGTB: win in 2 half-moves

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