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EGTB: win in 4 half-moves

# move score
1 Rg2 win in 3 half-moves
2 Ra6 draw
3 Re6 draw
4 Rg1 draw
5 Rg3 draw
6 Rg4 draw
7 Rg5 draw
8 Kc1 loss in 2 half-moves
9 Kc2 loss in 2 half-moves
10 Kd2 loss in 2 half-moves
11 Ke1 loss in 2 half-moves
12 Ke2 loss in 2 half-moves
13 Rb6 loss in 2 half-moves
14 Rd6 loss in 2 half-moves
15 Rf6 loss in 2 half-moves
16 Rg7 loss in 2 half-moves
17 Rg8 loss in 2 half-moves
18 Rh6 loss in 2 half-moves
19 Rc6 loss in 1 half-moves