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EGTB: win in 4 half-moves

# move score
1 Rc8 win in 3 half-moves
2 Ra8 draw
3 Rb8 draw
4 Rd8 draw
5 Re8 draw
6 Rf8 draw
7 Rg1 draw
8 Rg2 draw
9 Rg3 draw
10 Rg4 draw
11 K3c4 loss in 2 half-moves
12 K3d4 loss in 2 half-moves
13 K3e4 loss in 2 half-moves
14 K5c4 loss in 2 half-moves
15 K5d4 loss in 2 half-moves
16 K5e4 loss in 2 half-moves
17 Kc2 loss in 2 half-moves
18 Kc3 loss in 2 half-moves
19 Kc5 loss in 2 half-moves
20 Kc6 loss in 2 half-moves
21 Kd2 loss in 2 half-moves
22 Kd6 loss in 2 half-moves
23 Ke2 loss in 2 half-moves
24 Ke3 loss in 2 half-moves
25 Ke5 loss in 2 half-moves
26 Ke6 loss in 2 half-moves
27 Rg5 loss in 2 half-moves
28 Rg6 loss in 2 half-moves
29 Rg7 loss in 2 half-moves
30 Rh8 loss in 2 half-moves