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

EGTB: win in 16 half-moves

# move score
1 Ra8 win in 15 half-moves
2 Kb5 draw
3 Kd5 draw
4 Kd6 draw
5 Ke7 draw
6 Ke8 draw
7 Kf7 draw
8 Kg7 draw
9 Kg8 draw
10 Ra7 draw
11 Rb5 draw
12 Kb4 loss in 2 half-moves
13 Kb6 loss in 2 half-moves
14 Kc4 loss in 2 half-moves
15 Kc6 loss in 2 half-moves
16 Kd4 loss in 2 half-moves
17 Ra1 loss in 2 half-moves
18 Ra2 loss in 2 half-moves
19 Ra3 loss in 2 half-moves
20 Ra4 loss in 2 half-moves
21 Ra6 loss in 2 half-moves