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EGTB: win in 4 half-moves

# move score
1 Rb6 win in 3 half-moves
2 Bb6 draw
3 Be7 draw
4 Bg5 draw
5 Bh4 draw
6 Ra8 draw
7 Rb7 draw
8 Rc8 draw
9 Ba5 loss in 2 half-moves
10 Bc7 loss in 2 half-moves
11 Bf6 loss in 2 half-moves
12 Rb1 loss in 2 half-moves
13 Rb2 loss in 2 half-moves
14 Rb3 loss in 2 half-moves
15 Rb4 loss in 2 half-moves
16 Rb5 loss in 2 half-moves