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EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Rb6 win in 5 half-moves
3 Ka8 draw
4 Kb8 draw
5 Rb4 draw
6 Rb5 draw
7 Rb8 draw
8 Rd1 draw
9 Re1 draw
10 Rf1 draw
11 Rh1 draw
12 Ka6 loss in 2 half-moves
13 Kb6 loss in 2 half-moves
14 Kb7 loss in 2 half-moves
15 Kd5 loss in 2 half-moves
16 Kd6 loss in 2 half-moves
17 Kd7 loss in 2 half-moves
18 Ke5 loss in 2 half-moves
19 Ke7 loss in 2 half-moves
20 Kf5 loss in 2 half-moves
21 Kf6 loss in 2 half-moves
22 Kf7 loss in 2 half-moves
23 Ra1 loss in 2 half-moves
24 Rb2 loss in 2 half-moves
25 Rb3 loss in 2 half-moves
26 Rc1 loss in 2 half-moves
27 Rg1 loss in 2 half-moves