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EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Kg6 draw
3 Kg8 draw
4 Kh6 draw
5 Kh8 draw
6 Ra5 draw
7 Rb1 draw
8 Rb6 draw
9 Rb7 draw
10 Rh5 draw
11 Kd7 loss in 2 half-moves
12 Kd8 loss in 2 half-moves
13 Ke7 loss in 2 half-moves
14 Kf7 loss in 2 half-moves
15 Kf8 loss in 2 half-moves
16 Kg7 loss in 2 half-moves
17 Rb2 loss in 2 half-moves
18 Rb3 loss in 2 half-moves
19 Rb4 loss in 2 half-moves
20 Rc5 loss in 2 half-moves
21 Rd5 loss in 2 half-moves
22 Re5 loss in 2 half-moves
23 Rf5 loss in 2 half-moves
24 Rg5 loss in 2 half-moves