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 Ra6 draw
4 Rc2 draw
5 Rc4 draw
6 Rc7 draw
7 Rd6 draw
8 Re6 draw
9 Rf6 draw
10 Kg1 loss in 2 half-moves
11 Kg2 loss in 2 half-moves
12 Kg3 loss in 2 half-moves
13 Kh1 loss in 2 half-moves
14 Kh3 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rc1 loss in 2 half-moves
17 Rc3 loss in 2 half-moves
18 Rc5 loss in 2 half-moves
19 Rc8 loss in 2 half-moves