invalid problem set
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Problem | 21515 |
Created | 2017-08-24 |
Source | Hideo Otake — Opening Theory Made Easy |
Rating | |
Difficulty | 5.8 kyu |
Average Solve Time | 19 secs |
User Attempts |
112 / 262 |
Solve Ratio Rating | 7 kyu |
| rating history |
Black should to protect the corner.
(;AB[dc]AW[de]AW[dq]AB[co]AP[goproblems];B[ce];W[cf];B[cd]C[RIGHT])
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