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EGTB: win in 4 half-moves

# move score
1 Rg4 win in 3 half-moves
2 Ka1 draw
3 Ka3 draw
4 Kb4 draw
5 Kb5 draw
6 Kc5 draw
7 Kd4 draw
8 Kd5 draw
9 Ra7 draw
10 Rc7 draw
11 Rf7 draw
12 Rg3 draw
13 Rg5 draw
14 Rg6 draw
15 Rg8 draw
16 Rh7 draw
17 Kab3 loss in 2 half-moves
18 Kb1 loss in 2 half-moves
19 Kb2 loss in 2 half-moves
20 Kc3 loss in 2 half-moves
21 Kcb3 loss in 2 half-moves
22 Kd3 loss in 2 half-moves
23 Rb7 loss in 2 half-moves
24 Rd7 loss in 2 half-moves
25 Re7 loss in 2 half-moves
26 Rg1 loss in 2 half-moves
27 Rg2 loss in 2 half-moves