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EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 Rb1 win in 5 half-moves
3 Ra7 draw
4 Rb3 draw
5 Rb4 draw
6 Rb5 draw
7 Rb6 draw
8 Rf7 draw
9 Rg7 draw
10 Rh7 draw
11 Ke1 loss in 2 half-moves
12 Ke2 loss in 2 half-moves
13 Kff2 loss in 2 half-moves
14 Kfg2 loss in 2 half-moves
15 Kgf2 loss in 2 half-moves
16 Kgg2 loss in 2 half-moves
17 Kh1 loss in 2 half-moves
18 Kh2 loss in 2 half-moves
19 Rb8 loss in 2 half-moves
20 Rc7 loss in 2 half-moves
21 Rd7 loss in 2 half-moves
22 Re7 loss in 2 half-moves