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EGTB: win in 4 half-moves

# move score
1 Kb4 win in 3 half-moves
2 Kc4 draw
3 Kd4 draw
4 Ra1 draw
5 Ra3 draw
6 Ra6 draw
7 Rg4 draw
8 Rh4 draw
9 Kb2 loss in 2 half-moves
10 Kb3 loss in 2 half-moves
11 Kc2 loss in 2 half-moves
12 Kc5 loss in 2 half-moves
13 Kc6 loss in 2 half-moves
14 Kc7 loss in 2 half-moves
15 Kd2 loss in 2 half-moves
16 Kd3 loss in 2 half-moves
17 Kd5 loss in 2 half-moves
18 Kd7 loss in 2 half-moves
19 Ke5 loss in 2 half-moves
20 Ke6 loss in 2 half-moves
21 Ke7 loss in 2 half-moves
22 Ra2 loss in 2 half-moves
23 Ra5 loss in 2 half-moves
24 Ra7 loss in 2 half-moves
25 Ra8 loss in 2 half-moves
26 Rb4 loss in 2 half-moves
27 Rc4 loss in 2 half-moves
28 Rd4 loss in 2 half-moves
29 Re4 loss in 2 half-moves
30 Rf4 loss in 2 half-moves