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 Kc5 draw
3 Kc7 draw
4 Kd5 draw
5 Kd6 draw
6 Kd7 draw
7 Ra8 draw
8 Rb3 draw
9 Rb7 draw
10 Rf8 draw
11 Kb7 loss in 36 half-moves
12 Rb6 loss in 28 half-moves
13 Kb5 loss in 14 half-moves
14 Kb6 loss in 4 half-moves
15 Rc8 loss in 4 half-moves
16 Rb1 loss in 2 half-moves
17 Rb2 loss in 2 half-moves
18 Rb5 loss in 2 half-moves
19 Rd8 loss in 2 half-moves
20 Re8 loss in 2 half-moves
21 Rg8 loss in 2 half-moves
22 Rh8 loss in 2 half-moves