This Nuribou puzzle is large but easy, with the possible exception of its very first step. It is also the blog's first puzzle constructed while I was standing up.
Double Minesweeper by Thomas Snyder
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PDF Theme: Clue Symmetry and Logic Author/Opus: This is the 310th puzzle
from Thomas Snyder, aka Dr. Sudoku. Rules: Variation of Minesweeper. Place
eithe...
Puzzle 153: Friendly Sudoku
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Here’s a new (?) Sudoku variant. Inspired by Sudoku N from the upcoming
Sudoku Mahabharat. The 6×6 example there also solves uniquely by these
rules. Rules...
Puzzle #181: Nurikabe
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This is a Nurikabe puzzle. The rules for Nurikabe can be found here: Rules
page It’s definitely a perfectly accurate clock. Advertisements
DSM 2018: Michael Ley holt seinen 7. DSM-Titel
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Ebenfalls am Samstag fiel die Entscheidung bei der 14. DSM. Hier die
Platzierungen der besten drei Teilnehmer: 1. Platz: Michael Ley 2. Platz:
Martin Merke...
Licha
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Sprzężenie zwrotne było na łamiblogowej tapecie przynajmniej raz, a być
może więcej razy, ale na małą skalę, jakby przy okazji. Chodzi o zadania, w
których...
Super Sodoku 16X16 # 10
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Begining with this article, I intend to present you different kinds of
puzzle inspired by the Super Sudoku 16X16. Iit will be a varriation on the
theme o...
Hunt Puzzle #2: Deceptive Diagramless
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This is not a logic puzzle. Yes, I've jumped the shark again (for another
post).
Note: You will probably want some form of graph paper, square paper,
cros...
P.I. HUNT 4
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It’s the day right before the Ides of March, which you might also call
Pre-Ides day, or P.I. day for short! In fact, according to Google, it’s the
30th ann...
Puzzle No 132: At least once Diagonal
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Puzzle idea is from Ramesh. I kind of liked the idea and so attempted to
create one sudoku of it. I have focused more on the theme rather than
difficulty b...
Broken blog
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My blog is horribly broken after Dropbox removed their public links feature
some time ago, huh. I’ll try to get around to fix that… hopefully. If I’m
not l...
The Art of Puzzles: Slitherlink
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A quick heads up - I have a slitherlink puzzle published on Grandmaster
Puzzles today! See
https://www.gmpuzzles.com/blog/2018/01/slitherlink-tom-collyer/...
Your toilet seat is not going to be the same?
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Your everyday personal tasks might just cease to be legal unless you
register the equipment with your identity. Too much of 'General knowledge'
can harm, ...
Repeated Killer N1 2017
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Last day of the year. Had created this puzzle as an example for the IB of
the upcoming UKPA Sudoku Championships 2018.
On a lighter note, I thought of nami...
Omni-Yajilin
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My first Nikoli puzzle book was Pencil Puzzle Yajilin 1, back in 2006 when
the Pencil Puzzle series was available. Yajilin has always been a special
puzzl...
Türkiye Zeka Oyunları 2018
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Veeee başladı! – (Biri) Ne başladı hacı abi? – (SY) Ne yani, tey tey… –
(Biri) Ne var ki bunda, başlayan her şeyi bilmek zorunda mıyım? – (SY)
Tamam be, ar...
That’s all, Folks
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No posts for a month and a half? It’s become obvious to me that despite the
fact there’s plenty to talk about, I’ve rather lost interest in saying it
in th...
Goodbye
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I have a new blog. (Click here.) It is still a work in progress, but it
looks okay. Some posts have been migrated over; more will be migrated in
the future...
Puzzle 26: Falling Letters
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Rules (from the WPC 2017 instruction booklet): “Place letters into some
cells in the grid. Same letters cannot share a side, and blank cells cannot
share a...
14 October, 2017
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Sorry for the lack of updates! We've fallen too far behind in new puzzle
creation to run a competition in 2017, but we hope to run one in the first
half of...
WSC Practice #9: Round 12 - What Is It?
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This is the 9th practice puzzle for the 2017 WSC.
These are the last 2 practice puzzles for the WSC. I'll be focussing on the
WPC a bit for the next week. ...
Mirror, Mirror… Wherefore art thou, mirror?
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I was recently chatting with Dr. David Nacin, a fellow puzzle enthusiast
who has taken a keen interest in solving, studying, and sharing my Haunted
Mirror ...
BmMT Puzzle Round 2016
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My most recent large puzzle project is the puzzle round from Berkeley mini
Math Tournament last November. I will most likely not be creating one for
the 20...
(37.) Twin Skyscrapers
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The puzzle itself is somewhat gimmicky, but I think there’s potentially
interesting variations of the idea. Each grid obeys regular Skyscrapers
rules. Addi...
Not something that's not about hats
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Not gonna talk about that! Instead, let's go into unnecessary detail to
solve a hat puzzle.
Back in March, I saw a video featuring two puzzles about prison...
Killer sudoku N°14
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Voici le 500ème puzzle publié sur ce blog !
Ce sudoku est également le dernier qui sera publié ici. J'espère que vous,
chers lecteurs, avez apprécié et c...
Puzzle Ramayan – Loops
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Hello, If there are some very very patient individuals who still keep tabs
on this blog (and thanks for sticking around), I do plan to make it active
again...
10 September, 2015
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CiSRA has decided not to run the CiSRA Puzzle Competition any more. We
thank you for your participation over the years, and hope that you had as
much fun a...
USPC 2015 is over
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I haven’t found much discussion online; maybe it’s on sites like Facebook
where I’m not present, so let’s dump some thoughts here. Tentatively, I
finished,...
Puzzle 68: The One Ring
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See Puzzle 3 for *most* of the instructions. I've added two additional
elements here (and I lack the time to properly update the full rules to
include the...
Holiday Discount Puzzle 2014
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Fifth Annual Holiday Discount Puzzle Solve this puzzle for 10% off any
order! December is here once again, and that can mean only one thing: it's
time agai...
An End... and a Beginning
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I will keep this blog open as an archive. I thank all readers and friends
for making this blog a success (according to me!). After a long break, I'll
be ba...
WPC Playoops
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So a tremendous WPC has ended. I simply wish my performance in the end
lived up to my own expectations in the way that the quality of the puzzles
and organ...
Puzzle 16: BACA
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Been a while. This one's pretty easy, but I was inspired by a puzzle on GM
Puzzles yesterday.
Rules (as swiped from GM Puzzles): Either shade or add a sin...
Fillomino Cipher
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This is a Cipher Fillomino Puzzle. Rules are
at http://logicmastersindia.com/lmitests/dl.asp?view=1&attachmentid=282
(Hopefully, as indicated in the puzzle...
Les îles elles-mêmes finissent par sombrer
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C'est officiel ; il m'est définitivement plus plaisant de repartir de zéro
que de corriger encore et toujours un travail n'ayant pas l'heur de me
satisfair...
Doppelblock
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Fill in the grid with the numbers 1 to 4. In each row and each column is
each number exactly once. There are also in each row and column two
blackened ce...
Nurimino (Nurikabe Fillomino)
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*Nurimino*:
Here's another hybrid puzzle. In a sense, each solution is both a valid
Nurikabe and a valid Fillomino solution.
All given numbers clues in ...