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

EGTB: win in 4 half-moves

# move score
1 Ka6 win in 3 half-moves
2 Kb6 win in 3 half-moves
3 Kd7 win in 7 half-moves
4 Ka4 draw
5 Kb5 draw
6 Ke7 draw
7 Re8 draw
8 Rg8 draw
9 Rh3 draw
10 Rh7 draw
11 Kb4 loss in 2 half-moves
12 Kc7 loss in 2 half-moves
13 Kc8 loss in 2 half-moves
14 Rf8 loss in 2 half-moves
15 Rh1 loss in 2 half-moves
16 Rh2 loss in 2 half-moves
17 Rh4 loss in 2 half-moves
18 Rh5 loss in 2 half-moves
19 Rh6 loss in 2 half-moves
20 Ke8 loss in 1 half-moves