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EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Kc7 draw
3 Kc8 draw
4 Kd7 draw
5 Ke8 draw
6 Kg6 draw
7 Kg8 draw
8 Kh6 draw
9 Kh8 draw
10 Ra3 draw
11 Rb4 draw
12 Rb5 draw
13 Rb6 draw
14 Rb8 draw
15 Rc3 draw
16 Rd3 draw
17 Re3 draw
18 Rf3 draw
19 Ke7 loss in 2 half-moves
20 Kg7 loss in 2 half-moves
21 Rb1 loss in 2 half-moves
22 Rb2 loss in 2 half-moves
23 Rg3 loss in 2 half-moves
24 Rh3 loss in 2 half-moves