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

EGTB: win in 4 half-moves

# move score
1 Ra8 win in 3 half-moves
2 Ka8 draw
3 Kbb8 draw
4 Kbc8 draw
5 Kcb8 draw
6 Kcc8 draw
7 Kd8 draw
8 Ra1 draw
9 Ra2 draw
10 Ka6 loss in 2 half-moves
11 Kbb6 loss in 2 half-moves
12 Kbc6 loss in 2 half-moves
13 Kcb6 loss in 2 half-moves
14 Kcc6 loss in 2 half-moves
15 Kd6 loss in 2 half-moves
16 Kd7 loss in 2 half-moves
17 Ra3 loss in 2 half-moves
18 Ra4 loss in 2 half-moves
19 Ra5 loss in 2 half-moves
20 Ra6 loss in 2 half-moves