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

EGTB: win in 4 half-moves

# move score
1 Rc1 win in 3 half-moves
2 Rg4 win in 5 half-moves
3 Rg6 win in 5 half-moves
4 Rd1 draw
5 Re1 draw
6 Rf1 draw
7 Rg2 draw
8 Rh1 draw
9 Ra1 loss in 2 half-moves
10 Rb1 loss in 2 half-moves
11 Rg3 loss in 2 half-moves
12 Rg5 loss in 2 half-moves
13 Rg7 loss in 2 half-moves
14 Rg8 loss in 2 half-moves