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EGTB: win in 4 half-moves

# move score
1 Rb4 win in 3 half-moves
2 Kh1 draw
3 Kh4 draw
4 Ra7 draw
5 Rb5 draw
6 Rb6 draw
7 Rb8 draw
8 Rc7 draw
9 Rh7 draw
10 K2g2 loss in 2 half-moves
11 K2g3 loss in 2 half-moves
12 K3g2 loss in 2 half-moves
13 K3g3 loss in 2 half-moves
14 Kg1 loss in 2 half-moves
15 Kg4 loss in 2 half-moves
16 Rb1 loss in 2 half-moves
17 Rb2 loss in 2 half-moves
18 Rb3 loss in 2 half-moves
19 Rd7 loss in 2 half-moves
20 Re7 loss in 2 half-moves
21 Rf7 loss in 2 half-moves
22 Rg7 loss in 2 half-moves