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

EGTB: win in 4 half-moves

# move score
1 Kg1 win in 3 half-moves
2 Kg3 win in 3 half-moves
3 Rg3 win in 5 half-moves
4 K1e2 draw
5 K1f2 draw
6 K1g2 draw
7 Ke1 draw
8 Ke3 draw
9 Rh1 draw
10 Rh5 draw
11 K3e2 loss in 2 half-moves
12 K3f2 loss in 2 half-moves
13 K3g2 loss in 2 half-moves
14 Ke4 loss in 2 half-moves
15 Kf4 loss in 2 half-moves
16 Kg4 loss in 2 half-moves
17 Rh2 loss in 2 half-moves
18 Rh4 loss in 2 half-moves
19 Rh6 loss in 2 half-moves
20 Rh7 loss in 2 half-moves
21 Rh8 loss in 2 half-moves