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

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 Kb7 win in 3 half-moves
3 Kdc7 win in 3 half-moves
4 Kdd7 win in 3 half-moves
5 Ke7 win in 3 half-moves
6 Rg5 win in 3 half-moves
7 Rg7 win in 3 half-moves
8 Kb5 draw
9 Kc5 draw
10 Kc8 draw
11 Kcc7 draw
12 Kcd7 draw
13 Kd5 draw
14 Kd6 draw
15 Ke8 draw
16 Rf8 draw
17 Rg3 draw
18 Rg4 draw
19 Rg6 draw
20 Rh8 draw
21 Re8 loss in 2 half-moves
22 Rg1 loss in 2 half-moves
23 Rg2 loss in 2 half-moves