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EGTB: win in 4 half-moves

# move score
1 Rg2 win in 3 half-moves
2 Rb8 draw
3 Rd8 draw
4 Re8 draw
5 Rf8 draw
6 Rg1 draw
7 Rg3 draw
8 Rg4 draw
9 Rg5 draw
10 Kd1 loss in 2 half-moves
11 Kd2 loss in 2 half-moves
12 Kee2 loss in 2 half-moves
13 Kef2 loss in 2 half-moves
14 Kfe2 loss in 2 half-moves
15 Kff2 loss in 2 half-moves
16 Kg1 loss in 2 half-moves
17 Kg2 loss in 2 half-moves
18 Ra8 loss in 2 half-moves
19 Rc8 loss in 2 half-moves
20 Rg6 loss in 2 half-moves
21 Rg7 loss in 2 half-moves
22 Rh8 loss in 2 half-moves