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EGTB: win in 4 half-moves

# move score
1 Rh7 win in 3 half-moves
2 Ka8 draw
3 Kb8 draw
4 Ra3 draw
5 Rb3 draw
6 Rc3 draw
7 Rh4 draw
8 Rh5 draw
9 Rh6 draw
10 Rh8 draw
11 Ka6 loss in 2 half-moves
12 Kb6 loss in 2 half-moves
13 Kb7 loss in 2 half-moves
14 Ke5 loss in 2 half-moves
15 Ke6 loss in 2 half-moves
16 Ke7 loss in 2 half-moves
17 Kf5 loss in 2 half-moves
18 Kf7 loss in 2 half-moves
19 Kg5 loss in 2 half-moves
20 Kg6 loss in 2 half-moves
21 Kg7 loss in 2 half-moves
22 Rd3 loss in 2 half-moves
23 Re3 loss in 2 half-moves
24 Rf3 loss in 2 half-moves
25 Rg3 loss in 2 half-moves
26 Rh1 loss in 2 half-moves
27 Rh2 loss in 2 half-moves