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 Kb5 win in 3 half-moves
3 Kb6 win in 3 half-moves
4 Kb8 win in 3 half-moves
5 Ra5 win in 3 half-moves
6 K6a7 draw
7 K6b7 draw
8 K8a7 draw
9 K8b7 draw
10 Ra3 draw
11 Rb4 draw
12 Rc4 draw
13 Rd4 draw
14 Rh4 draw
15 Ra1 loss in 2 half-moves
16 Ra2 loss in 2 half-moves
17 Re4 loss in 2 half-moves
18 Rf4 loss in 2 half-moves
19 Rg4 loss in 2 half-moves