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 Ka5 draw
3 Kb5 draw
4 Kb6 draw
5 Kb7 draw
6 Ra4 draw
7 Rb1 draw
8 Rc1 draw
9 Rd1 draw
10 Re1 draw
11 Rf1 draw
12 Ka7 loss in 12 half-moves
13 Ra2 loss in 2 half-moves
14 Ra5 loss in 2 half-moves
15 Rg1 loss in 2 half-moves
16 Rh1 loss in 2 half-moves