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EGTB: win in 4 half-moves

# move score
1 Rb3 win in 3 half-moves
2 Kd4 draw
3 Kd5 draw
4 Kd6 draw
5 Ra3 draw
6 Rc3 draw
7 Rd3 draw
8 Re3 draw
9 Rf3 draw
10 Rg5 draw
11 Rg6 draw
12 Rg7 draw
13 Rg8 draw
14 Ka1 loss in 2 half-moves
15 Ka2 loss in 2 half-moves
16 Kb2 loss in 2 half-moves
17 Kb4 loss in 2 half-moves
18 Kb5 loss in 2 half-moves
19 Kb6 loss in 2 half-moves
20 Kc1 loss in 2 half-moves
21 Kc2 loss in 2 half-moves
22 Kc4 loss in 2 half-moves
23 Kc6 loss in 2 half-moves
24 Rg1 loss in 2 half-moves
25 Rg2 loss in 2 half-moves
26 Rg4 loss in 2 half-moves
27 Rh3 loss in 2 half-moves