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EGTB: win in 4 half-moves

# move score
1 Rc8 win in 3 half-moves
2 Rb1 draw
3 Rb2 draw
4 Rb6 draw
5 Rd8 draw
6 Re8 draw
7 Rf8 draw
8 Rg8 draw
9 Rh8 draw
10 Bh2 loss in 2 half-moves
11 Nd1 loss in 2 half-moves
12 Nd3 loss in 2 half-moves
13 Ne4 loss in 2 half-moves
14 Ng4 loss in 2 half-moves
15 Nh1 loss in 2 half-moves
16 Nh3 loss in 2 half-moves
17 Ra8 loss in 2 half-moves
18 Rb3 loss in 2 half-moves
19 Rb4 loss in 2 half-moves
20 Rb5 loss in 2 half-moves
21 Rb7 loss in 2 half-moves