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EGTB: win in 4 half-moves

# move score
1 Rb3 win in 3 half-moves
2 Rb2 draw
3 Rb4 draw
4 Rb5 draw
5 Rc8 draw
6 Rd8 draw
7 Re8 draw
8 Rg8 draw
9 Ka1 loss in 2 half-moves
10 Ka2 loss in 2 half-moves
11 Kb2 loss in 2 half-moves
12 Kbc1 loss in 2 half-moves
13 Kbc2 loss in 2 half-moves
14 Kc3 loss in 2 half-moves
15 Kd1 loss in 2 half-moves
16 Kd3 loss in 2 half-moves
17 Kdc1 loss in 2 half-moves
18 Kdc2 loss in 2 half-moves
19 Ke1 loss in 2 half-moves
20 Ke2 loss in 2 half-moves
21 Ke3 loss in 2 half-moves
22 Ra8 loss in 2 half-moves
23 Rb6 loss in 2 half-moves
24 Rb7 loss in 2 half-moves
25 Rf8 loss in 2 half-moves
26 Rh8 loss in 2 half-moves