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

EGTB: win in 4 half-moves

# move score
1 Rg6 win in 3 half-moves
2 Rh6 win in 3 half-moves
3 Kg1 draw
4 Kg2 draw
5 Kg3 draw
6 Kh1 draw
7 Kh3 draw
8 Ra6 draw
9 Rd6 draw
10 Re4 draw
11 Re5 draw
12 Re7 draw
13 Re8 draw
14 Rf6 draw
15 Rb6 loss in 2 half-moves
16 Rc6 loss in 2 half-moves
17 Re1 loss in 2 half-moves
18 Re2 loss in 2 half-moves
19 Re3 loss in 2 half-moves