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EGTB: win in 4 half-moves

# move score
1 Rg1 win in 3 half-moves
2 Ka3 draw
3 Kb3 draw
4 Rc7 draw
5 Rd7 draw
6 Re7 draw
7 Rg2 draw
8 Rg3 draw
9 Rg4 draw
10 Rg8 draw
11 Rh7 draw
12 Ka1 loss in 2 half-moves
13 Kb1 loss in 2 half-moves
14 Kb2 loss in 2 half-moves
15 Kc1 loss in 2 half-moves
16 Kc2 loss in 2 half-moves
17 Kd2 loss in 2 half-moves
18 Ke1 loss in 2 half-moves
19 Ke2 loss in 2 half-moves
20 Ra7 loss in 2 half-moves
21 Rb7 loss in 2 half-moves
22 Rf7 loss in 2 half-moves
23 Rg5 loss in 2 half-moves
24 Rg6 loss in 2 half-moves