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 Kb6 draw
4 Kc4 draw
5 Kc6 draw
6 Kd4 draw
7 Kd5 draw
8 Kd6 draw
9 Ra7 draw
10 Rb1 draw
11 Rb2 draw
12 Rb3 draw
13 Rb4 draw
14 Rb5 draw
15 Rc7 draw
16 Rd7 draw
17 Re7 draw
18 Rf7 draw
19 Rg7 draw
20 Rh7 draw
21 Kb4 loss in 2 half-moves
22 Rb6 loss in 2 half-moves