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 Kc6 draw
3 Kd6 draw
4 Rb1 draw
5 Rb2 draw
6 Rb3 draw
7 Rb5 draw
8 Rf6 draw
9 Rg6 draw
10 Rh6 draw
11 Kb4 loss in 2 half-moves
12 Kb5 loss in 2 half-moves
13 Kc4 loss in 2 half-moves
14 Kd4 loss in 2 half-moves
15 Kd5 loss in 2 half-moves
16 Ra6 loss in 2 half-moves
17 Rb4 loss in 2 half-moves
18 Rb7 loss in 2 half-moves
19 Rc6 loss in 2 half-moves
20 Rd6 loss in 2 half-moves
21 Re6 loss in 2 half-moves