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

EGTB: win in 2 half-moves

# move score
1 Ra3 win in 1 half-moves
2 Ka6 draw
3 Ra1 draw
4 Ra2 draw
5 Rd4 draw
6 Re4 draw
7 Rf4 draw
8 Kb4 loss in 2 half-moves
9 Kb5 loss in 2 half-moves
10 Kb6 loss in 2 half-moves
11 Rb4 loss in 2 half-moves
12 Rc4 loss in 2 half-moves
13 Rg4 loss in 2 half-moves
14 Rh4 loss in 2 half-moves