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EGTB: win in 4 half-moves

# move score
1 Rg4 win in 3 half-moves
2 Kh1 draw
3 Kh4 draw
4 Rb7 draw
5 Rg5 draw
6 Rg6 draw
7 Rg8 draw
8 Rh7 draw
9 K2g2 loss in 2 half-moves
10 K2g3 loss in 2 half-moves
11 K3g2 loss in 2 half-moves
12 K3g3 loss in 2 half-moves
13 Kg1 loss in 2 half-moves
14 Kg4 loss in 2 half-moves
15 Ra7 loss in 2 half-moves
16 Rc7 loss in 2 half-moves
17 Rd7 loss in 2 half-moves
18 Re7 loss in 2 half-moves
19 Rf7 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