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EGTB: win in 4 half-moves

# move score
1 Rb6 win in 3 half-moves
2 Ka5 draw
3 Ka7 draw
4 Kab7 draw
5 Kb8 draw
6 Kc7 draw
7 Kcb7 draw
8 Kd7 draw
9 Kd8 draw
10 Ra2 draw
11 Rb1 draw
12 Rb7 draw
13 Rb8 draw
14 Rf2 draw
15 Kb5 loss in 2 half-moves
16 Kb6 loss in 2 half-moves
17 Rb3 loss in 2 half-moves
18 Rb4 loss in 2 half-moves
19 Rb5 loss in 2 half-moves
20 Rc2 loss in 2 half-moves
21 Rd2 loss in 2 half-moves
22 Re2 loss in 2 half-moves
23 Rg2 loss in 2 half-moves
24 Rh2 loss in 2 half-moves