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

EGTB: win in 2 half-moves

# move score
1 Rd7 win in 1 half-moves
2 Ra7 draw
3 Rb7 draw
4 Rc1 draw
5 Rc2 draw
6 Rc3 draw
7 Rc4 draw
8 Rc5 draw
9 Rc6 draw
10 Rg7 draw
11 Kg7 loss in 2 half-moves
12 Kg8 loss in 2 half-moves
13 Kh7 loss in 2 half-moves
14 Rc8 loss in 2 half-moves
15 Re7 loss in 2 half-moves
16 Rf7 loss in 2 half-moves
17 Rh7 loss in 2 half-moves