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EGTB: win in 4 half-moves

# move score
1 Rh7 win in 3 half-moves
2 Ra7 draw
3 Rc7 draw
4 Rf1 draw
5 Rf3 draw
6 Rf4 draw
7 Rf5 draw
8 Rf6 draw
9 Rfb7 draw
10 Ra8 loss in 2 half-moves
11 Rb1 loss in 2 half-moves
12 Rb2 loss in 2 half-moves
13 Rb3 loss in 2 half-moves
14 Rb4 loss in 2 half-moves
15 Rb5 loss in 2 half-moves
16 Rb6 loss in 2 half-moves
17 Rbb7 loss in 2 half-moves
18 Rbf8 loss in 2 half-moves
19 Rc8 loss in 2 half-moves
20 Rd7 loss in 2 half-moves
21 Rd8 loss in 2 half-moves
22 Re7 loss in 2 half-moves
23 Re8 loss in 2 half-moves
24 Rf2 loss in 2 half-moves
25 Rff8 loss in 2 half-moves
26 Rg7 loss in 2 half-moves
27 Rg8 loss in 2 half-moves
28 Rh8 loss in 2 half-moves