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 Kb4 draw
3 Kb5 draw
4 Kb6 draw
5 Rb1 draw
6 Rc1 draw
7 Ka4 loss in 10 half-moves
8 Ka6 loss in 10 half-moves
9 Ra2 loss in 10 half-moves
10 Ra4 loss in 2 half-moves
11 Rd1 loss in 2 half-moves
12 Re1 loss in 2 half-moves
13 Rg1 loss in 2 half-moves
14 Rh1 loss in 2 half-moves
15 Rf1 loss in 1 half-moves