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

EGTB: win in 2 half-moves

# move score
1 Rg7 win in 1 half-moves
2 Ka8 draw
3 Kc8 draw
4 Rd4 draw
5 Rd8 draw
6 Re7 draw
7 Rf7 draw
8 Ka7 loss in 2 half-moves
9 Kb7 loss in 2 half-moves
10 Kc7 loss in 2 half-moves
11 Ra7 loss in 2 half-moves
12 Rb7 loss in 2 half-moves
13 Rc7 loss in 2 half-moves
14 Rd1 loss in 2 half-moves
15 Rd2 loss in 2 half-moves
16 Rd3 loss in 2 half-moves
17 Rd5 loss in 2 half-moves
18 Rd6 loss in 2 half-moves
19 Rh7 loss in 2 half-moves