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

EGTB: win in 2 half-moves

# move score
1 Rb2 win in 1 half-moves
2 K7b8 draw
3 K7d7 draw
4 K7d8 draw
5 K8b8 draw
6 K8d7 draw
7 K8d8 draw
8 Ra7 draw
9 Rb6 draw
10 Rb8 draw
11 Kb6 loss in 2 half-moves
12 Kc6 loss in 2 half-moves
13 Kd6 loss in 2 half-moves
14 Rb1 loss in 2 half-moves
15 Rb3 loss in 2 half-moves
16 Rb4 loss in 2 half-moves
17 Rb5 loss in 2 half-moves