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