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

EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Kb7 win in 5 half-moves
3 Kdc8 win in 5 half-moves
4 Kdd7 win in 5 half-moves
5 Ra8 win in 5 half-moves
6 Kcd7 win in 9 half-moves
7 Ra1 draw
8 Ra2 draw
9 Ra3 draw
10 Ra4 draw
11 Ra5 draw
12 Kb6 loss in 2 half-moves
13 Kb8 loss in 2 half-moves
14 Kc6 loss in 2 half-moves
15 Kcc8 loss in 2 half-moves
16 Kd6 loss in 2 half-moves
17 Ke7 loss in 2 half-moves
18 Ke8 loss in 2 half-moves
19 Ra6 loss in 2 half-moves