Pentominous by JinHoo Ahn

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Pentominous by JinHoo Ahn


or solve online (using our beta test of Penpa-Edit tools; use tab to alternate between a composite mode for line/edge drawing and a letter entry mode.)

Theme: Where is PI?

Author/Opus: This is the 1st puzzle from guest contributor JinHoo Ahn.

Rules: Standard Pentominous rules.

Answer String: Enter the letter associated with the pentomino occupying each cell in the marked rows from left to right starting with the 1st row and then entering the 10th row, separating the groups with a comma. Use CAPITAL LETTERS!

Time Standards (highlight to view): Grandmaster = 2:30, Master = 3:15, Expert = 6:30

Solution: PDF

Note: Follow this link for other Pentominous puzzles. If you are new to this puzzle type, here are our easiest Pentominous to get started on. More Pentominous puzzles can be found in Plenty o’ Pentominous by Grant Fikes and Murat Can Tonta and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.

  • skynet says:

    4:57.This fell very fast to a possible placement of an X.Didn’t bother to check if the other placement lead to a contradiction. Just went along with the solve and reached the solution !

  • Anurag Sahay says:

    Gur pyhr-tebhc ‘HSYM’ ba gur yrsg fvqr vf gur cynpr gb fgneg gur fbyir, juvpu vf gura sbyybjrq ol erfbyhgvba bs A naq gura K.
    This puzzle is a good piece of work, built around the theme.

  • Freddie Hand says:

    Very impressive design!

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