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 Kc6 draw
5 Kd5 draw
6 Kd6 draw
7 Ra6 draw
8 Rb7 draw
9 Rc6 draw
10 Rg6 draw
11 Rh6 draw
12 Rb5 loss in 18 half-moves
13 Rb4 loss in 10 half-moves
14 Kc4 loss in 2 half-moves
15 Kd4 loss in 2 half-moves
16 Rb1 loss in 2 half-moves
17 Rb2 loss in 2 half-moves
18 Rb3 loss in 2 half-moves
19 Rd6 loss in 2 half-moves
20 Re6 loss in 2 half-moves
21 Rf6 loss in 2 half-moves