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EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 Kd2 draw
3 Kd3 draw
4 Kee2 draw
5 Kef2 draw
6 Kfe2 draw
7 Kff2 draw
8 Kg2 draw
9 Kg3 draw
10 Kg4 draw
11 Ra8 draw
12 Rb1 draw
13 Rb3 draw
14 Rh8 draw
15 Kd4 loss in 2 half-moves
16 Kee4 loss in 2 half-moves
17 Kef4 loss in 2 half-moves
18 Kfe4 loss in 2 half-moves
19 Kff4 loss in 2 half-moves
20 Rb4 loss in 2 half-moves
21 Rb5 loss in 2 half-moves
22 Rb6 loss in 2 half-moves
23 Rb7 loss in 2 half-moves
24 Rc8 loss in 2 half-moves
25 Rd8 loss in 2 half-moves
26 Re8 loss in 2 half-moves
27 Rf8 loss in 2 half-moves
28 Rg8 loss in 2 half-moves