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

EGTB: win in 6 half-moves

# move score
1 K3a4 win in 5 half-moves
2 K3b4 win in 5 half-moves
3 Ka2 draw
4 Kb2 draw
5 Rd8 draw
6 K5a4 loss in 2 half-moves
7 K5b4 loss in 2 half-moves
8 Ka6 loss in 2 half-moves
9 Kb3 loss in 2 half-moves
10 Kb5 loss in 2 half-moves
11 Kb6 loss in 2 half-moves
12 Ra6 loss in 2 half-moves
13 Ra7 loss in 2 half-moves
14 Rb8 loss in 2 half-moves
15 Rc8 loss in 2 half-moves
16 Re8 loss in 2 half-moves
17 Rf8 loss in 2 half-moves
18 Rg8 loss in 2 half-moves
19 Rh8 loss in 2 half-moves