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

EGTB: win in 4 half-moves

# move score
1 Rb4 win in 3 half-moves
2 Re4 draw
3 Rf4 draw
4 Rg1 draw
5 Rg2 draw
6 Rg3 draw
7 Rg8 draw
8 Rh4 draw
9 Ra4 loss in 2 half-moves
10 Rc4 loss in 2 half-moves
11 Rd4 loss in 2 half-moves
12 Rg5 loss in 2 half-moves
13 Rg6 loss in 2 half-moves
14 Rg7 loss in 2 half-moves