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I would be thankful if you added some comments.
| Author |
ptyrna
|
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| Difficulty | 24 kyu (history) | ||
| AVG solve time | 41 sec | ||
| User attempts | 4565 / 8826 | ||
| Genre | tesuji ⓒ | ||
| Similar problems | |||
| Created | 2012-09-28 | ||
| Source | I thought it out. | ||
| Stars | 4.71 (17 votes) | ||
| Collections | |||
| Your attempts | N/A | ||