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EGTB: win in 4 half-moves

# move score
1 Rb1 win in 3 half-moves
2 Kd1 draw
3 Kd2 draw
4 Kee1 draw
5 Kef1 draw
6 Kfe1 draw
7 Kff1 draw
8 Kg1 draw
9 Kg2 draw
10 Kg3 draw
11 Ra8 draw
12 Rb2 draw
13 Rb7 draw
14 Rh8 draw
15 Kd3 loss in 2 half-moves
16 Kee3 loss in 2 half-moves
17 Kef3 loss in 2 half-moves
18 Kfe3 loss in 2 half-moves
19 Kff3 loss in 2 half-moves
20 Rb3 loss in 2 half-moves
21 Rb4 loss in 2 half-moves
22 Rb5 loss in 2 half-moves
23 Rb6 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