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 Kb7 draw
3 Kc5 draw
4 Kc7 draw
5 Kd5 draw
6 Kd6 draw
7 Rb2 draw
8 Rb6 draw
9 Rb7 draw
10 Rd1 draw
11 Kb5 loss in 4 half-moves
12 Kb6 loss in 4 half-moves
13 Kd7 loss in 4 half-moves
14 Rc1 loss in 4 half-moves
15 Rb3 loss in 2 half-moves
16 Rb4 loss in 2 half-moves
17 Rb5 loss in 2 half-moves
18 Re1 loss in 2 half-moves
19 Rf1 loss in 2 half-moves
20 Rg1 loss in 2 half-moves
21 Rh1 loss in 2 half-moves
22 Ra1 loss in 1 half-moves