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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Kd5 draw
3 Kd6 draw
4 Kd7 draw
5 Ke7 draw
6 Kf7 draw
7 Rb5 draw
8 Rb6 draw
9 Rb7 draw
10 Rc8 draw
11 Kf6 loss in 12 half-moves
12 Re8 loss in 4 half-moves
13 Ke5 loss in 2 half-moves
14 Kf5 loss in 2 half-moves
15 Rb1 loss in 2 half-moves
16 Rb2 loss in 2 half-moves
17 Rb3 loss in 2 half-moves
18 Rd8 loss in 2 half-moves
19 Rf8 loss in 2 half-moves
20 Rg8 loss in 2 half-moves
21 Rh8 loss in 2 half-moves
22 Ra8 loss in 1 half-moves