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isaacg
  • Member for 10 years
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19 votes
2 answers
1k views

What extra number did I form?

13 votes
1 answer
592 views

What's special about blowzier?

11 votes
4 answers
3k views

Why, crystal ball? Why?

11 votes
1 answer
940 views

A mysterious importance

9 votes
1 answer
464 views

A Never-Before-Seen Sequence

9 votes
1 answer
321 views

Designing a four-pan scale

8 votes
1 answer
534 views

Decipher this sentence, written in an original cipher

8 votes
1 answer
340 views

Four color a map - but go light on the fourth color!

8 votes
1 answer
1k views

Decipher the Picture

7 votes
4 answers
2k views

Fair d5 with as few faces as possible

2 votes
4 answers
275 views

Extend the sequences of numbers and names