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

EGTB: win in 4 half-moves

# move score
1 Kb8 win in 3 half-moves
2 Kd6 win in 3 half-moves
3 Rg8 win in 5 half-moves
4 Ka7 draw
5 Kb7 draw
6 Kc4 draw
7 Kc5 draw
8 Kc6 draw
9 Ke4 draw
10 Ke5 draw
11 Ke6 draw
12 Re5 draw
13 Rf5 draw
14 Rg3 draw
15 Rg4 draw
16 Rg6 draw
17 Rg7 draw
18 Rh5 draw
19 Kd4 loss in 2 half-moves
20 Rg1 loss in 2 half-moves
21 Rg2 loss in 2 half-moves