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EGTB: win in 4 half-moves

# move score
1 Kb2 win in 3 half-moves
2 Ka1 draw
3 Ka2 draw
4 Kd4 draw
5 Ke4 draw
6 Kf4 draw
7 Ra3 draw
8 Rg1 draw
9 Rg2 draw
10 Rg4 draw
11 Rg5 draw
12 Kc1 loss in 2 half-moves
13 Kc2 loss in 2 half-moves
14 Kd5 loss in 2 half-moves
15 Kd6 loss in 2 half-moves
16 Ke6 loss in 2 half-moves
17 Kf5 loss in 2 half-moves
18 Kf6 loss in 2 half-moves
19 Rb3 loss in 2 half-moves
20 Rc3 loss in 2 half-moves
21 Rd3 loss in 2 half-moves
22 Re3 loss in 2 half-moves
23 Rf3 loss in 2 half-moves
24 Rg6 loss in 2 half-moves
25 Rg7 loss in 2 half-moves
26 Rg8 loss in 2 half-moves
27 Rh3 loss in 2 half-moves