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

EGTB: win in 2 half-moves

# move score
1 Ra7 win in 1 half-moves
2 Kb1 draw
3 Ra3 draw
4 Ra8 draw
5 Rh2 draw
6 Kb2 loss in 16 half-moves
7 Rf2 loss in 10 half-moves
8 Re2 loss in 4 half-moves
9 Ra4 loss in 2 half-moves
10 Ra5 loss in 2 half-moves
11 Ra6 loss in 2 half-moves
12 Rb2 loss in 2 half-moves
13 Rc2 loss in 2 half-moves
14 Rd2 loss in 2 half-moves
15 Rg2 loss in 1 half-moves