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 Kb4 draw
3 Kb5 draw
4 Kb6 draw
5 Kc4 draw
6 Kc6 draw
7 Kd4 draw
8 Kd5 draw
9 Kd6 draw
10 Ra7 draw
11 Rb1 draw
12 Rb2 draw
13 Rb3 draw
14 Rb4 draw
15 Rb5 draw
16 Rb6 draw
17 Rc7 draw
18 Rd7 draw
19 Re7 draw
20 Rf7 draw
21 Rg7 draw
22 Rh7 draw