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

EGTB: win in 2 half-moves

# move score
1 Rb3 win in 1 half-moves
2 Kb5 draw
3 Kb6 draw
4 Kb7 draw
5 Kc5 draw
6 Kc7 draw
7 Kd5 draw
8 Kd6 draw
9 Kd7 draw
10 Ra8 draw
11 Rb1 draw
12 Rb2 draw
13 Rb4 draw
14 Rb5 draw
15 Rb6 draw
16 Rc8 draw
17 Rd8 draw
18 Re8 draw
19 Rf8 draw
20 Rg8 draw
21 Rh8 draw
22 Rb7 loss in 2 half-moves