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EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 Rb4 win in 3 half-moves
3 Rb1 draw
4 Rb3 draw
5 Rb5 draw
6 Rb6 draw
7 Re7 draw
8 Rf7 draw
9 Rg7 draw
10 Rh7 draw
11 Ka2 loss in 2 half-moves
12 Ka4 loss in 2 half-moves
13 Kab2 loss in 2 half-moves
14 Kab3 loss in 2 half-moves
15 Kab4 loss in 2 half-moves
16 Kc2 loss in 2 half-moves
17 Kc4 loss in 2 half-moves
18 Kcb2 loss in 2 half-moves
19 Kcb3 loss in 2 half-moves
20 Kcb4 loss in 2 half-moves
21 Kd2 loss in 2 half-moves
22 Kd3 loss in 2 half-moves
23 Kd4 loss in 2 half-moves
24 Ra7 loss in 2 half-moves
25 Rb8 loss in 2 half-moves
26 Rc7 loss in 2 half-moves
27 Rd7 loss in 2 half-moves