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EGTB: win in 4 half-moves

# move score
1 Ra8 win in 3 half-moves
2 Kb6 draw
3 Kb7 draw
4 Kb8 draw
5 Kc8 draw
6 Kcd7 draw
7 Kcd8 draw
8 Ke8 draw
9 Ked7 draw
10 Ked8 draw
11 Kf8 draw
12 Ra1 draw
13 Ra7 draw
14 Rb2 draw
15 Rc2 draw
16 Rg2 draw
17 Kc6 loss in 2 half-moves
18 Kcd6 loss in 2 half-moves
19 Ke6 loss in 2 half-moves
20 Ked6 loss in 2 half-moves
21 Kf6 loss in 2 half-moves
22 Kf7 loss in 2 half-moves
23 Ra3 loss in 2 half-moves
24 Ra4 loss in 2 half-moves
25 Ra5 loss in 2 half-moves
26 Ra6 loss in 2 half-moves
27 Rd2 loss in 2 half-moves
28 Re2 loss in 2 half-moves
29 Rf2 loss in 2 half-moves
30 Rh2 loss in 2 half-moves