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EGTB: win in 4 half-moves

# move score
1 Rb3 win in 3 half-moves
2 Kd4 draw
3 Kd5 draw
4 Ke5 draw
5 Kf4 draw
6 Kf5 draw
7 Ra8 draw
8 Rb4 draw
9 Re8 draw
10 Rg8 draw
11 Kd3 loss in 2 half-moves
12 Ke3 loss in 2 half-moves
13 Kf3 loss in 2 half-moves
14 Rb1 loss in 2 half-moves
15 Rb2 loss in 2 half-moves
16 Rb5 loss in 2 half-moves
17 Rb6 loss in 2 half-moves
18 Rb7 loss in 2 half-moves
19 Rc8 loss in 2 half-moves
20 Rd8 loss in 2 half-moves
21 Rf8 loss in 2 half-moves
22 Rh8 loss in 2 half-moves