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EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Kc6 draw
3 Kc7 draw
4 Kc8 draw
5 Kd6 draw
6 Kd8 draw
7 Ke6 draw
8 Ke8 draw
9 Kg8 draw
10 Ra2 draw
11 Rb1 draw
12 Rb6 draw
13 Rb7 draw
14 Rc2 draw
15 Rd2 draw
16 Re2 draw
17 Rf2 draw
18 Ke7 loss in 2 half-moves
19 Kg7 loss in 2 half-moves
20 Kh7 loss in 2 half-moves
21 Rb3 loss in 2 half-moves
22 Rb4 loss in 2 half-moves
23 Rb5 loss in 2 half-moves
24 Rg2 loss in 2 half-moves
25 Rh2 loss in 2 half-moves