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

EGTB: win in 8 half-moves

# move score
1 Ra8 win in 7 half-moves
2 Kd6 draw
3 Ra1 draw
4 Ra2 draw
5 Ra3 draw
6 Ra4 draw
7 Rb6 draw
8 Kc5 loss in 2 half-moves
9 Kc8 loss in 2 half-moves
10 Kcc7 loss in 2 half-moves
11 Kcd7 loss in 2 half-moves
12 Kd5 loss in 2 half-moves
13 Kdc7 loss in 2 half-moves
14 Kdd7 loss in 2 half-moves
15 Ke7 loss in 2 half-moves
16 Ke8 loss in 2 half-moves
17 Ra5 loss in 2 half-moves
18 Ra7 loss in 2 half-moves
19 Kb5 loss in 1 half-moves
20 Kb6 loss in 1 half-moves
21 Kb7 loss in 1 half-moves