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

EGTB: win in 2 half-moves

# move score
1 Rb5 win in 1 half-moves
2 Ra1 draw
3 Rb2 draw
4 Rb3 draw
5 Rb4 draw
6 Re1 draw
7 Rf1 draw
8 Rg1 draw
9 Rh1 draw
10 Ka7 loss in 2 half-moves
11 Ka8 loss in 2 half-moves
12 Kbb7 loss in 2 half-moves
13 Kbc7 loss in 2 half-moves
14 Kcb7 loss in 2 half-moves
15 Kcc7 loss in 2 half-moves
16 Kd7 loss in 2 half-moves
17 Kd8 loss in 2 half-moves
18 Rb6 loss in 2 half-moves
19 Rb7 loss in 2 half-moves
20 Rc1 loss in 2 half-moves
21 Rd1 loss in 2 half-moves