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EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Rb4 draw
3 Rb5 draw
4 Rb6 draw
5 Rd1 draw
6 Re1 draw
7 Rf1 draw
8 Rg1 draw
9 Ka7 loss in 2 half-moves
10 Ka8 loss in 2 half-moves
11 Kb7 loss in 2 half-moves
12 Kbc7 loss in 2 half-moves
13 Kbc8 loss in 2 half-moves
14 Kd7 loss in 2 half-moves
15 Kdc7 loss in 2 half-moves
16 Kdc8 loss in 2 half-moves
17 Ke7 loss in 2 half-moves
18 Ke8 loss in 2 half-moves
19 Ra1 loss in 2 half-moves
20 Rb2 loss in 2 half-moves
21 Rb3 loss in 2 half-moves
22 Rc1 loss in 2 half-moves
23 Rh1 loss in 2 half-moves