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

EGTB: win in 2 half-moves

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