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

EGTB: win in 2 half-moves

# move score
1 Kbb8 win in 1 half-moves
2 Kab8 draw
3 Ra1 draw
4 Ra2 draw
5 Ra3 draw
6 Ra4 draw
7 Ra5 draw
8 Ka6 loss in 2 half-moves
9 Kc6 loss in 2 half-moves
10 Kc7 loss in 2 half-moves
11 Kc8 loss in 2 half-moves
12 Kb6 loss in 1 half-moves
13 Ra6 loss in 1 half-moves