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

EGTB: win in 4 half-moves

# move score
1 Rd7 win in 3 half-moves
2 Rg1 draw
3 Rg4 draw
4 Rg5 draw
5 Rg6 draw
6 Ra7 loss in 6 half-moves
7 Rb7 loss in 4 half-moves
8 Rc7 loss in 4 half-moves
9 Ka1 loss in 2 half-moves
10 Ka2 loss in 2 half-moves
11 Kb2 loss in 2 half-moves
12 Kc1 loss in 2 half-moves
13 Kc2 loss in 2 half-moves
14 Re7 loss in 2 half-moves
15 Rf7 loss in 2 half-moves
16 Rg2 loss in 2 half-moves
17 Rg3 loss in 2 half-moves
18 Rg8 loss in 2 half-moves
19 Rh7 loss in 2 half-moves