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