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EGTB: win in 4 half-moves

# move score
1 Rb5 win in 3 half-moves
2 Rc8 draw
3 a3 loss in 4 half-moves
4 Kf5 loss in 4 half-moves
5 Kf6 loss in 4 half-moves
6 Kf7 loss in 4 half-moves
7 Kg5 loss in 4 half-moves
8 Kg7 loss in 4 half-moves
9 Kh6 loss in 4 half-moves
10 Kh7 loss in 4 half-moves
11 Rb3 loss in 4 half-moves
12 Re8 loss in 4 half-moves
13 Rg8 loss in 4 half-moves
14 Rh8 loss in 4 half-moves
15 Kh5 loss in 2 half-moves
16 Ra8 loss in 2 half-moves
17 Rb1 loss in 2 half-moves
18 Rb2 loss in 2 half-moves
19 Rb4 loss in 2 half-moves
20 Rb7 loss in 2 half-moves
21 Rd8 loss in 2 half-moves
22 Rf8 loss in 2 half-moves
23 Rb6 loss in 1 half-moves