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EGTB: win in 4 half-moves

# move score
1 Rb4 win in 3 half-moves
2 Rc4 win in 3 half-moves
3 Ra4 draw
4 Rd4 draw
5 Rg6 draw
6 Rg7 draw
7 Rg8 draw
8 Rh4 draw
9 Kb1 loss in 2 half-moves
10 Kb2 loss in 2 half-moves
11 Kc2 loss in 2 half-moves
12 Kcd1 loss in 2 half-moves
13 Kcd2 loss in 2 half-moves
14 Kd3 loss in 2 half-moves
15 Ke1 loss in 2 half-moves
16 Ke3 loss in 2 half-moves
17 Ked1 loss in 2 half-moves
18 Ked2 loss in 2 half-moves
19 Kf1 loss in 2 half-moves
20 Kf2 loss in 2 half-moves
21 Kf3 loss in 2 half-moves
22 Re4 loss in 2 half-moves
23 Rf4 loss in 2 half-moves
24 Rg1 loss in 2 half-moves
25 Rg2 loss in 2 half-moves
26 Rg3 loss in 2 half-moves
27 Rg5 loss in 2 half-moves