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

EGTB: win in 4 half-moves

# move score
1 Rg7 win in 3 half-moves
2 Kd2 draw
3 Kd3 draw
4 Kd4 draw
5 Ke2 draw
6 Ke4 draw
7 Ra1 draw
8 Ra2 draw
9 Ra3 draw
10 Ra5 draw
11 Ra6 draw
12 Ra8 draw
13 Rc7 draw
14 Rd7 draw
15 Re7 draw
16 Rf7 draw
17 Kf2 loss in 2 half-moves
18 Kf3 loss in 2 half-moves
19 Kf4 loss in 2 half-moves
20 Ra4 loss in 2 half-moves
21 Rb7 loss in 2 half-moves
22 Rh7 loss in 2 half-moves