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 Ka2 draw
3 Ka3 draw
4 Ka4 draw
5 Kb2 draw
6 Kd7 draw
7 Kd8 draw
8 Ke7 draw
9 Kf7 draw
10 Kf8 draw
11 Ra1 draw
12 Ra3 draw
13 Ra5 draw
14 Ra6 draw
15 Ra8 draw
16 Rb7 draw
17 Rh7 draw
18 Kb4 loss in 2 half-moves
19 Kc2 loss in 2 half-moves
20 Kc3 loss in 2 half-moves
21 Kc4 loss in 2 half-moves
22 Ra2 loss in 2 half-moves
23 Ra4 loss in 2 half-moves
24 Rc7 loss in 2 half-moves
25 Rd7 loss in 2 half-moves
26 Re7 loss in 2 half-moves
27 Rf7 loss in 2 half-moves