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EGTB: win in 4 half-moves

# move score
1 Rh8 win in 3 half-moves
2 Re2 draw
3 Re3 draw
4 Rf1 draw
5 Rf8 draw
6 Rff2 draw
7 Rfh3 draw
8 Rg2 draw
9 Rg3 draw
10 Rh1 draw
11 Rhf2 draw
12 Rhh3 draw
13 Ra2 loss in 2 half-moves
14 Ra3 loss in 2 half-moves
15 Rb2 loss in 2 half-moves
16 Rb3 loss in 2 half-moves
17 Rc2 loss in 2 half-moves
18 Rc3 loss in 2 half-moves
19 Rd2 loss in 2 half-moves
20 Rd3 loss in 2 half-moves
21 Rf4 loss in 2 half-moves
22 Rf5 loss in 2 half-moves
23 Rf6 loss in 2 half-moves
24 Rf7 loss in 2 half-moves
25 Rh4 loss in 2 half-moves
26 Rh5 loss in 2 half-moves
27 Rh6 loss in 2 half-moves
28 Rh7 loss in 2 half-moves