Puzzle Description:

#1: Norma Dee (norm0908) on Aug 21, 2012

His master's voice, no less. Not an easy solve but was glad I stuck with it. Nice.

thx a bunch Norma

No guessing. Cute puz, Sensei.

There used to be a really large model of this in front of a house in Northern Virginia. I think it came from Baltimore, and was returned there when the house was sold and the property redeveloped.

thx Joel & for info also

I loved this puzzle, Tom. Thanks!

:) JD

:)

Victor? ;-)

yesssss Jota :)

Great puzzle, Tom! Very recognizable and I liked the level of difficulty.

thx tom

Nice two-part puzzle. Each part solves itself except for the square, which forces one to come back and finish an ear later. If the number was known instead, that side solves trivially; almost too easy.

I see this labeled as moderate look-ahead. I managed to do it logically. The start on C15 is enough to give you a chance to use edge logic in R9-10 (use C11-14) and eventually extend the 6 all the way to the right. From there, it solves normally. You can classify this as a line logic puzzle.

SQUARE CLUE HINT for anyone stuck:
- C18 contains "3".

Bryan - "moderate look-ahead" encompasses edge logic, smile logic, two-way logic, et al. -- basically anything that isn't a one-line logic (line logic) or basic color logic.

They require a bit of "looking ahead", if only a little. Edge logic, for example requires
step 1 - placing the hypothetical clue
step 2 - extending the crossing clues
before you can see if the extended clues conflict.

Easy, but still looking ahead, so "moderate look-ahead".

If it requires more than 2-3 steps before you can tell there's a conflict, (but still is within a reasonable amount) then it becomes deep look-ahead.

There are some puzzles with a unique solution that therefore have a Logical solution, but would take so much mental bookkeeping that it would be beyond any person's capacity. Those get classified as guessing as we are people, not computers.

The key to this puzzle is to pay attention to "negative space" line logic. Make sure you fill in all the spaces that must be white.

Then there is a small bit of advanced logic to do. After the left side is nearly complete, you can do internal edge logic on the 6 in r10. If it were to go left past c13, it would create a block of more than 2 in r9. So r10c10-12 are white.

Then LL to finish.

Found to be solvable with moderate lookahead by infrapinklizzard.

easy

Cute. Neat version.

Cute but I had to guess alot. Must have started out wrong.

This reminds me of a puzzle I made...#9502. Tom's is cuter though :)

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