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EGTB: win in 4 half-moves

# move score
1 Rb3 win in 3 half-moves
2 K5b5 draw
3 K5b6 draw
4 K6b5 draw
5 K6b6 draw
6 Kb4 draw
7 Kc4 draw
8 Ra3 draw
9 Rc3 draw
10 Rh1 draw
11 Rh2 draw
12 Rh4 draw
13 Rh8 draw
14 K5d5 loss in 2 half-moves
15 K5d6 loss in 2 half-moves
16 K6d5 loss in 2 half-moves
17 K6d6 loss in 2 half-moves
18 Kb7 loss in 2 half-moves
19 Kc7 loss in 2 half-moves
20 Kd4 loss in 2 half-moves
21 Kd7 loss in 2 half-moves
22 Rd3 loss in 2 half-moves
23 Re3 loss in 2 half-moves
24 Rf3 loss in 2 half-moves
25 Rg3 loss in 2 half-moves
26 Rh5 loss in 2 half-moves
27 Rh6 loss in 2 half-moves
28 Rh7 loss in 2 half-moves