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

EGTB: win in 2 half-moves

# move score
1 Ra4 win in 1 half-moves
2 Ka5 draw
3 Ka7 draw
4 Kb6 draw
5 Kb7 draw
6 Ra5 draw
7 Rb3 draw
8 Rd3 draw
9 Re3 draw
10 Rf3 draw
11 Kb5 loss in 2 half-moves
12 Ra1 loss in 2 half-moves
13 Ra2 loss in 2 half-moves
14 Rg3 loss in 2 half-moves
15 Rh3 loss in 2 half-moves
16 Rc3 loss in 1 half-moves