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EGTB: win in 4 half-moves

# move score
1 Rb3 win in 3 half-moves
2 Rb2 win in 9 half-moves
3 Kb1 draw
4 Kc1 draw
5 Kd1 draw
6 Ra7 draw
7 Rb1 draw
8 Rb4 draw
9 Rb5 draw
10 Rb6 draw
11 Rc7 draw
12 Rd7 draw
13 Re7 draw
14 Kb2 loss in 2 half-moves
15 Kb3 loss in 2 half-moves
16 Kc3 loss in 2 half-moves
17 Kd2 loss in 2 half-moves
18 Kd3 loss in 2 half-moves
19 Kg3 loss in 2 half-moves
20 Kg4 loss in 2 half-moves
21 Kg5 loss in 2 half-moves
22 Kh3 loss in 2 half-moves
23 Kh5 loss in 2 half-moves
24 Rb8 loss in 2 half-moves
25 Rf7 loss in 2 half-moves
26 Rg7 loss in 2 half-moves
27 Rh7 loss in 2 half-moves