The Sphinx's Lair

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Sphinx

04:43

Q: How to solve this Coding Decoding problem within 0.6 minute or 36 seconds?

Question: TYPE 6: CODING BY COMPARISON AND CONTRAST Here two columns of letters are presented consisting of a few rows; letters of column I are given in capitals and that of column-II in small letters. Each small letter in Column II stands for some capital letter in Column I of the same row. H...

1 hour later…

oAlt

06:00

@Stiv laptop = top (better, as a verb, apparently) after lap (overhaul = overtake)

Stiv

06:49

@oAlt That's the one!

oAlt

CCCC: City in the far south has first automobile with new version – good or bad? (12)

Jafe

07:36

i remember the discussion here a while back on how you can tell whether a puzzle is good without seeing the answer

thought about that when i came across a HNQ puzzle that ends with the words "by martin gardner"

Sphinx

Q: From the Coverable Puzzle - Counterexample of those methods?

From the puzzle I had uploaded before, here’s deeper question. (Kind of math) Are there some counterexamples that the coloring/numbering method don’t apply?

mathematics geometry tiling

2 hours later…

Jafe

09:41

invercargill (city in the far south) = I CAR containing N VER plus G/ILL

oAlt

10:05

@Jafe indeed

I think I messed that one up a bit, the "or" was supposed to be "and". ~~Pretend that's what it said all along~~

1 hour later…

Sphinx

11:25

Q: Expected number of jigsaw puzzle edge pieces remaining when all four corners have been found

This is a real life puzzle. I would appreciate both an answer to the question but also an explanation as to WHY that is the answer, since I cannot work it out myself. I enjoy doing 1000 piece jigsaw puzzles. These typically are rectangular and 25x40 pieces, so there are 4 corner pieces and 23 + 2...