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

EGTB: win in 4 half-moves

# move score
1 Rg4 win in 3 half-moves
2 K5g5 draw
3 K5g6 draw
4 K6g5 draw
5 K6g6 draw
6 Kg4 draw
7 Kg7 draw
8 Kh4 draw
9 Kh7 draw
10 Rc1 draw
11 Rc2 draw
12 Rc3 draw
13 Rc8 draw
14 Rd4 draw
15 Re4 draw
16 Rf4 draw
17 Rh4 draw
18 Ra4 loss in 2 half-moves
19 Rb4 loss in 2 half-moves
20 Rc5 loss in 2 half-moves
21 Rc6 loss in 2 half-moves
22 Rc7 loss in 2 half-moves