Score:  740 points (ranked #107) 
Puzzles:  0 
Solutions:  20 (2 chosen as best) 
Comments:  1 
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Voted on:  0 puzzles, 1 solution 
Gave out:  1 up vote, 0 down votes 
Received:  9 up votes, 0 down votes 
logic  series  algebra  counting  
mathematical  tricky  probability  
number puzzle  geometry  reasoning 
