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

EGTB: win in 4 half-moves

# move score
1 Kb5 win in 3 half-moves
2 Kc7 win in 3 half-moves
3 Kc8 win in 3 half-moves
4 Kd7 win in 11 half-moves
5 Ke7 win in 11 half-moves
6 Rg7 win in 11 half-moves
7 Ka4 draw
8 Ka6 draw
9 Kb4 draw
10 Kb6 draw
11 Ke8 draw
12 Re8 draw
13 Rf8 draw
14 Rg3 draw
15 Rg4 draw
16 Rg5 draw
17 Rg6 draw
18 Rh8 draw
19 Rg1 loss in 2 half-moves
20 Rg2 loss in 2 half-moves