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

EGTB: win in 4 half-moves

# move score
1 K7b7 win in 3 half-moves
2 K8b7 win in 3 half-moves
3 Rb7 win in 3 half-moves
4 Ra8 win in 7 half-moves
5 K8b8 draw
6 Ra1 draw
7 Ra2 draw
8 Ra3 draw
9 Ra4 draw
10 K7b8 loss in 2 half-moves
11 K7d7 loss in 2 half-moves
12 K7d8 loss in 2 half-moves
13 K8d7 loss in 2 half-moves
14 K8d8 loss in 2 half-moves
15 Kb6 loss in 2 half-moves
16 Kc6 loss in 2 half-moves
17 Kd6 loss in 2 half-moves
18 Ra5 loss in 2 half-moves
19 Ra6 loss in 2 half-moves