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

EGTB: win in 2 half-moves

# move score
1 Rb2 win in 1 half-moves
2 Kb7 draw
3 Kb8 draw
4 Kc7 draw
5 Kd7 draw
6 Rb3 draw
7 Rb4 draw
8 Rb5 draw
9 Rb8 draw
10 Rc1 draw
11 Rd1 draw
12 Kd8 loss in 10 half-moves
13 Re1 loss in 4 half-moves
14 Rb6 loss in 2 half-moves
15 Rb7 loss in 2 half-moves
16 Rf1 loss in 2 half-moves
17 Rg1 loss in 2 half-moves
18 Rh1 loss in 2 half-moves
19 Ra1 loss in 1 half-moves