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Melon's Puzzle Zoo : LMI February'11 Puzzle Test on 26/27 Feb

Welcome to the Puzzle Zoo run by Palmer Mebane, MellowMelon, featuring a large number of unique kinds of puzzles that to the best of his knowledge made their first appearance on his website, if anywhere. Admission to the zoo is free, but you will only have two hours (120 minutes) to tour the place and solve whatever puzzles you can.
The zoo is divided into three sections. The first is Aliens, representing some of my own original puzzle types. The second is Mutants, showcasing some of my variations on familiar Nikoli types. The final is Hybrids, in which each type is a combination of two types, both selected among either Nikoli types or my own original ones. There are four different types of puzzles in each section, for twelve types total.
For each puzzle type in the Alien and Mutant sections, the zoo has two specimens. The first is a baby version, which should prove fairly docile. The second is an adult version. Caution is advised when viewing the adults, as they can be quite aggressive. However, the adult is worth significantly more if successfully solved. The Hybrid section has only adult specimens, with no babies. This means there are 20 puzzles total in the test.

Instruction Book

About the author

Palmer Mebane's first major competition was the 2010 WPC, which he participated in as a member of the US team that won the competition. On the constructing side, he has posted hundreds of puzzles at his blog Melon's Puzzles.

Puzzle Types

  • Castle Wall
  • Out of Sight
  • International Borders
  • Double Back
  • Mutants
  • Akari EX
  • Line Nurikabe
  • Liar Slitherlink
  • Nonconsecutive Fillomino
  • Hybrids
  • Castle Wall / Masyu
  • Yajilin / Akari
  • Nurikabe / Fillomino
  • Double Back / Country Road
  • There will be 2 puzzles from each of the Aliens and Mutant


You may start "Puzzle Zoo" any time during the 48-hour period during the weekend of 26/27 Feb.
Your timer will start when you click "Start Puzzle Zoo" — then you will have 120 minutes to solve and submit your answers.
A timer will be shown the answer page with the remaining time.
Submission is not allowed after the specified end time — you must start early enough to permit yourself enough solving time

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