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EGTB: win in 4 half-moves

# move score
1 Rf1 win in 3 half-moves
2 Ra1 draw
3 Rd2 draw
4 Rd3 draw
5 Rd4 draw
6 Rd6 draw
7 Re1 draw
8 Rg1 draw
9 Rh1 draw
10 Kd7 loss in 2 half-moves
11 Kd8 loss in 2 half-moves
12 Ke7 loss in 2 half-moves
13 Kf3 loss in 2 half-moves
14 Kf4 loss in 2 half-moves
15 Kf5 loss in 2 half-moves
16 Kf7 loss in 2 half-moves
17 Kf8 loss in 2 half-moves
18 Kg3 loss in 2 half-moves
19 Kg5 loss in 2 half-moves
20 Kh3 loss in 2 half-moves
21 Kh4 loss in 2 half-moves
22 Kh5 loss in 2 half-moves
23 Rb1 loss in 2 half-moves
24 Rc1 loss in 2 half-moves
25 Rd5 loss in 2 half-moves
26 Rd7 loss in 2 half-moves
27 Rd8 loss in 2 half-moves