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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 K5g6 draw
4 K5h6 draw
5 K7g6 draw
6 K7h6 draw
7 Kf4 draw
8 Kg4 draw
9 Kg8 draw
10 Kh4 draw
11 Kh5 draw
12 Kh7 draw
13 Kh8 draw
14 Ra2 draw
15 Rb1 draw
16 Rb3 draw
17 Rg2 draw
18 Rh2 draw
19 K5f6 loss in 2 half-moves
20 K7f6 loss in 2 half-moves
21 Kf5 loss in 2 half-moves
22 Kf7 loss in 2 half-moves
23 Kf8 loss in 2 half-moves
24 Rb6 loss in 2 half-moves
25 Rb7 loss in 2 half-moves
26 Rb8 loss in 2 half-moves
27 Rc2 loss in 2 half-moves
28 Rd2 loss in 2 half-moves
29 Re2 loss in 2 half-moves
30 Rf2 loss in 2 half-moves