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GM
ChristopherYoo
Christopher Woojin Yoo
Semifinalist in World Puzzle Battle Championship
Achievements
(104)
11
Happy Anniversary
36
Puzzles 4000
6
Puzzle 1000
Mad Scientist
Medals
(28)
6
1st Place
5
3rd Place
2
2nd Place
3
2nd Place
Badges
(2)
I Slipped
I Surrender
Cheers
(197)
3
Have a great New Year!
11
Merry Christmas!
2
Great Job!
2
Brr, It's Cold
Books
(33)
Réti
KIA
Nimzowitsch-Larsen
Polish
Awards
(567)
Achievements (104)
Medals (28)
Badges (2)
Cheers (197)
Passport (203)
Books (33)
Showcase