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EGTB: win in 4 half-moves

# move score
1 Rb4 win in 3 half-moves
2 Rb5 win in 3 half-moves
3 K2g3 draw
4 K2h3 draw
5 K4g3 draw
6 K4h3 draw
7 Kf5 draw
8 Kg1 draw
9 Kg5 draw
10 Kh1 draw
11 Kh2 draw
12 Kh4 draw
13 Kh5 draw
14 Ra7 draw
15 Rb6 draw
16 Rb8 draw
17 Rg7 draw
18 Rh7 draw
19 K2f3 loss in 2 half-moves
20 K4f3 loss in 2 half-moves
21 Kf1 loss in 2 half-moves
22 Kf2 loss in 2 half-moves
23 Kf4 loss in 2 half-moves
24 Rb1 loss in 2 half-moves
25 Rb2 loss in 2 half-moves
26 Rb3 loss in 2 half-moves
27 Rc7 loss in 2 half-moves
28 Rd7 loss in 2 half-moves
29 Re7 loss in 2 half-moves
30 Rf7 loss in 2 half-moves