Archive for March, 2012

TVC XII Practice Pack Addendum

March 29, 2012

Here’s the last of my TVC XII practice puzzles – see the previous post for the others that I made. The two puzzles in this PDF are examples of Broken Tapa (5) and TAPA TAPA (10), which I promised a few days ago.

TVC XII practice pack part 2 (PDF)

Puzzle 394 (Tapa)

March 28, 2012

This is a Tapa puzzle.

Puzzle 394

Puzzle 394


As you might be able to tell from the timing of this post, I probably wouldn’t mind if LMI did Tapa for a third month, whether I was putting up good results or not.

TVC XII Practice Pack

March 25, 2012

TVC XII, the last of the four Tapa Variations Contests this year, is being held next weekend. For most of the TVC’s this year Para has posted practice puzzles for the types on his blog. This time around one of two things is going to happen: either you’ll get two sets of puzzles, or Para will get a well-deserved break. That’s because I had a lot of time on my hands this weekend.

TVC XII practice pack (PDF)

This PDF contains practice puzzles for Twilight (2), Compass (3), Wired (4), Roman (6), Sweeper (7), Loop (8), and two puzzles for Borders (9). We’ve already seen Visionary and Make Room (1) in the TVCs before, and I plan to make Broken (5) and TAPA TAPA (10) later. In the case of Twilight and Borders, these are variations I have done on the blog before, so the PDF just includes those older puzzles (351 for Twilight, 382 and 388 for Borders). The other five were just made.

Puzzle 393 (Heyawacky)

March 21, 2012

This is a Heyawacky puzzle.

Puzzle 393

Puzzle 393

Puzzle 392 (Masyu) [Yajilin]

March 14, 2012

This is a Masyu puzzle, with a twist. Two squares that are unused by the loop may not be adjacent (this is a rule borrowed from Yajilin).

Puzzle 392

Puzzle 392

Puzzle Pack Vol. II: Statue Park

March 13, 2012

Alright, finally got this one done. Apologies for a second delay since I promised a March 10th release in an earlier post. That said, it may have worked out in your favor since I spent the 11th flying to the east coast for spring break and made almost a dozen more puzzles during that trip. Now this pack is about double the size of what it was originally planned to be. Incidentally, the donation I mentioned a couple weeks ago requested Statue Park; that right there was the first time I decided to increase the size beyond my original intentions.

Download the pack (PDF; 657 KB)

This pack contains

  • The rules, a walkthrough for an example, and a long list of strategies for Statue Park
  • 8 puzzles using a Tetromino bank, all 7 by 7
  • 8 puzzles using a Double Tetromino bank, all 10 by 10
  • 4 puzzles using a “Battlesquares” bank, all 10 by 10
  • 8 puzzles using a subset of the Pentomino bank, all 10 by 10
  • 8 puzzles using the full Pentomino bank, all 12 by 12
  • 4 puzzles using wackier, unique banks
  • A large puzzle using a full Hexomino bank (35 shapes)
  • 4 puzzles in a “Contributed” section, with one by detuned, one by Serkan Yurekli, and two by mathgrant
  • Hints and solutions for all puzzles (with the exception of no hints for the contributed puzzles)

That’s 45 total puzzles. Bit more than that 20-25 minimum I said I’d guarantee each pack. No variations, and no labelled clues even, but I don’t think I needed to do any of those.

Version 2 uploaded on March 15, 2012 10:48 AM EDT. Fixes some minor typos and a uniqueness error at the very end of II.41. Thanks to Aaron and Nils Miehe for notifying me of these issues.

Like with the first pack, I tried my best to find and fix errors of any kind, but it wouldn’t surprise me if some slipped through again. Please let me know of any glitches you find, either through a comment here or an email to palmermebane -at- gmail -dot- com. Updates will be announced in this post.

Puzzle 391 (Remembered Length)

March 7, 2012

This is a Remembered Length puzzle.

Puzzle 391

Puzzle 391


The hardest puzzle I’ve posted in recent times. There are all kinds of rules about parity and topology to be discovered here.

Puzzle 390 (Numberlink)

March 7, 2012

This is a Numberlink puzzle.

Puzzle 390

Puzzle 390


The easier of the two puzzles this week. The other one will be posted 12 hours from now.

A mystery hunt puzzle at a math contest?

March 4, 2012

As my previous post noted I was helping to organize a big competition for this weekend. That’s now happened. Major relief there. I still intend to get two Wednesday puzzles and a pack out this coming week.

Since this is a puzzle blog and not a math contest one, most of the rounds and problems are probably not of that much interest to you all (if I’m wrong about this, check here in a couple days). The exception is that one of the rounds which was unofficial and did not count for score was written to be sort of a hybrid between a math contest round and a mystery hunt style puzzle (although there’s no final answer word or anything). It ended up being way too hard and few teams picked up on any of the gimmicks, but that happens sometimes. Presuming you haven’t completely forgotten how to do math problems, you puzzle enthusiasts might fare better on it.

CHMMC 2012 Mixer Round (PDF)

(The name mixer round has to do with how we shuffled teams before giving it out and has nothing to do with solving the round itself.)

As noted above, there’s no final answer; once you’ve answered all 12 problems you’re done. Feel free to email me for answer checking or hints or whatever. Or just wait until I get back to posting my usual content.

(Edit on March 14th: We’ve now posted solutions to all the rounds of the competition, including this one.)


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