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

EGTB: win in 2 half-moves

# move score
1 Ra1 win in 1 half-moves
2 Ka5 draw
3 Kb5 draw
4 Kb6 draw
5 Kb7 draw
6 Ra3 draw
7 Rb4 draw
8 Rc4 draw
9 Rf4 draw
10 Ka7 loss in 10 half-moves
11 Re4 loss in 4 half-moves
12 Ra2 loss in 2 half-moves
13 Ra5 loss in 2 half-moves
14 Rd4 loss in 2 half-moves
15 Rg4 loss in 2 half-moves
16 Rh4 loss in 2 half-moves