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 Kb8 draw
3 Kcc7 draw
4 Kcd7 draw
5 Kdc7 draw
6 Kdd7 draw
7 Ke7 draw
8 Ke8 draw
9 Ra4 draw
10 Re4 draw
11 Rf4 draw
12 Rg5 draw
13 Rg6 draw
14 Rg8 draw
15 Rh4 draw
16 Kb7 loss in 2 half-moves
17 Rb4 loss in 2 half-moves
18 Rc4 loss in 2 half-moves
19 Rd4 loss in 2 half-moves
20 Rg1 loss in 2 half-moves
21 Rg2 loss in 2 half-moves
22 Rg3 loss in 2 half-moves