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EGTB: win in 4 half-moves

# move score
1 Rc8 win in 3 half-moves
2 Rd8 win in 3 half-moves
3 Rb3 draw
4 Rb5 draw
5 Rb6 draw
6 Rb7 draw
7 Re8 draw
8 Rf8 draw
9 Rg8 draw
10 Rh8 draw
11 Ka2 loss in 2 half-moves
12 Kab1 loss in 2 half-moves
13 Kab2 loss in 2 half-moves
14 Kc2 loss in 2 half-moves
15 Kcb1 loss in 2 half-moves
16 Kcb2 loss in 2 half-moves
17 Kd1 loss in 2 half-moves
18 Kd2 loss in 2 half-moves
19 Ra8 loss in 2 half-moves
20 Rb1 loss in 2 half-moves
21 Rb2 loss in 2 half-moves
22 Rb4 loss in 2 half-moves