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EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Ka6 draw
3 Ka8 draw
4 Kab7 draw
5 Kab8 draw
6 Kc8 draw
7 Kcb7 draw
8 Kcb8 draw
9 Kd7 draw
10 Kd8 draw
11 Ra1 draw
12 Rb5 draw
13 Rb6 draw
14 Rb7 draw
15 Rf1 draw
16 Rg1 draw
17 Rh1 draw
18 Kab6 loss in 2 half-moves
19 Kc6 loss in 2 half-moves
20 Kcb6 loss in 2 half-moves
21 Kd6 loss in 2 half-moves
22 Rb2 loss in 2 half-moves
23 Rb3 loss in 2 half-moves
24 Rb4 loss in 2 half-moves
25 Rc1 loss in 2 half-moves
26 Rd1 loss in 2 half-moves
27 Re1 loss in 2 half-moves