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

EGTB: win in 4 half-moves

# move score
1 Ka5 win in 3 half-moves
2 Ka1 draw
3 Ka3 draw
4 Ka7 draw
5 Kb1 draw
6 Kb2 draw
7 Kb3 draw
8 Ra3 draw
9 Ra5 draw
10 Rb4 draw
11 Rg4 draw
12 Kb5 loss in 2 half-moves
13 Kb6 loss in 2 half-moves
14 Kb7 loss in 2 half-moves
15 Rc4 loss in 2 half-moves
16 Rd4 loss in 2 half-moves
17 Re4 loss in 2 half-moves
18 Rf4 loss in 2 half-moves
19 Rh4 loss in 2 half-moves