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

EGTB: win in 4 half-moves

# move score
1 Ka7 win in 3 half-moves
2 Kb7 win in 3 half-moves
3 Rg7 win in 3 half-moves
4 Rg8 win in 3 half-moves
5 Kb8 draw
6 Re6 draw
7 Rf6 draw
8 Rg4 draw
9 Rg5 loss in 4 half-moves
10 Rh6 loss in 4 half-moves
11 Ra6 loss in 2 half-moves
12 Rb6 loss in 2 half-moves
13 Rc6 loss in 2 half-moves
14 Rd6 loss in 2 half-moves
15 Rg1 loss in 2 half-moves
16 Rg2 loss in 2 half-moves
17 Rg3 loss in 2 half-moves