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EGTB: win in 4 half-moves

# move score
1 Rb5 win in 3 half-moves
2 Ba1 draw
3 Bc3 draw
4 Bd4 draw
5 Bf6 draw
6 Bh8 draw
7 Ra4 draw
8 Rb3 draw
9 Rc4 draw
10 Ba3 loss in 4 half-moves
11 Bc1 loss in 2 half-moves
12 Be5 loss in 2 half-moves
13 Bg7 loss in 2 half-moves
14 Rb6 loss in 2 half-moves
15 Rb7 loss in 2 half-moves
16 Rb8 loss in 2 half-moves
17 Rd4 loss in 2 half-moves
18 Re4 loss in 2 half-moves
19 Rf4 loss in 2 half-moves
20 Rg4 loss in 2 half-moves
21 Rh4 loss in 2 half-moves