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| Author |
llel
|
||
| Difficulty | 13 kyu (history) | ||
| AVG solve time | 35 sec | ||
| User attempts | 2137 / 5789 | ||
| Genre | tesuji ⓒ | ||
| Similar problems | |||
| Created | 2007-08-22 | ||
| Source | Book | ||
| Stars | 4.5 (24 votes) | ||
| Collections | |||
| Your attempts | N/A | ||