Starting today (2020-11-2) the Two Not Touch puzzles in the will increase in difficulty from Monday thru Saturday, as does the NYT crossword. Happy puzzling!
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Krazydad
@krazydad_sudoku
Free puzzles and mazes since 2004. Constructor for ‘Two Not Touch’ in the New York Times.
Krazydad’s Tweets
Just got my author copies! You can preorder my new Star Battle Puzzles book here: amazon.com/Star-Battle-Pu
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There are some companies selling puzzles that make brain-health claims; some even have spokespeople with PhDs. I find these claims to be overly broad and borderline-to-blatantly unethical, and I do not make such claims on my own website. 4/4
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If you solve a lot of different puzzles, you get better at solving new puzzles which employ similar strategies. 3/4
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What Sudoku-solving definitely does, is make you better at solving Sudoku. That's it. 2/4
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As someone who enjoys making and solving puzzles, I would like to say that I do NOT believe that puzzles "improve memory", "raise your IQ," "forestall dementia," or significantly improve brain heath. 1/4
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Fun thread on self-publishing spam.
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Now we have come full circle with MEN FOR IT MEN.
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This problem appears to only appear on iPads running very old versions of the system software. I believe it is fixed now.
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A few people have reported that my interactive puzzles are not loading, since I added a new feature yesterday. If you are experiencing this, and are bored and nerdy, contact me via DM, so I can collect some diagnostics. Thanks!
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Had great fun sharing my love of recreational programming with Talya’s 6th grade math class this morning. Random number generators for the win!
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#1 pro of @zoom_us school: experts can come visit! Today @krazydad_sudoku visited and taught us about making puzzles & using a random generator. Afterwards, the Ss got to work on @PlayCraftLearn and tried random generators for themselves. Best #chickenrain! @MSMakeCode #edtech
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Pretty clever Two Not Touch / Star Battle pattern, sent to me by a 12-year old. The arrow points to a square you can rule out with this shape. Took me a minute to reason it out!
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Star Battle from is a great puzzle to explore Ss logic and reasoning - it's also great to play in a small group #MathsTalk #iteachmath #MTBoS
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A happy little piano piece from the before times. Have a nice day! 😋
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Hey Teachers!! I'll soon be offering a great @davemillar puzzle design called HAUNTED for some spooky fun. The art by @canowerms can be colored in! Thanks to @Phil_Bordelon for ghost busting. Sample PDF booklet w/ 24 puzzles: krazydad.com/haunted/haunte
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I needed a little mental health break today, so I played some piano. Maybe you do too?
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Yesterday, I got a nice letter from a computer scientist who is solving my NYTimes logic puzzles with a quantum computer. Honestly, the whole idea of quantum computing is baffling to me, but I *think* maybe this means the puzzle-singularity is fast approaching!
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“Hi Jim:
One more picture – My Father in law just loves his birthday gift. He uses the yellow and orange marbles for known dead squares.
When he has to test theories, he uses blue ones.
He’s keeping me busy with board resets!”
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Just received this pic in the emails. A home made Two Not Touch game!
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This Fred Glasier photo is one of my favorite memento mori. I am kinda obsessed with it, and have been reading contemporaneous accounts of the 1920s Sparks Circus where it was taken on newspapers.com, a site I can spend all day time traveling within. 1/4
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Back to school? 3 simple mazes to solve or color! Full resolution in profile link ☝️
My entries for old Draw This In Your Style challenges - Check out the OC’s🔥
🧼😷💜
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Just received this pic in the emails. A home made Two Not Touch game!
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In case you were wondering why I don't run ads on my puzzle website...
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...and we’re gone again. Sigh...
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...and we're back :-) Pretty sure someone at Dreamhost typed a zero when they were explicitly told to type a zero, but in fact, should have typed a one.
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...and we're back :-) Pretty sure someone at Dreamhost typed a zero when they were explicitly told to type a zero, but in fact, should have typed a one.
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Our engineers have identified the cause of the DNS degradation and are working on a resolution. We’ll update this post as new information becomes available. dreamhoststatus.com
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Hi Krazydad fans. My puzzle website is having some issues, due to an issue with my DNS provider (Dreamhost). Hopefully they will come back shortly. In the meantime, I have some lovely books on Amazon? :-)
Really love the covers on these. Nice compact form factor too! I wonder where I can get more?
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Day 1 at my new school in the books!! After sharing class details, students exercised reasoning skills to attack the Suguru puzzle...so much discourse on our first day!😍 #Iteachmath #ilearnmath #my66boys thx!
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Hey Teachers!! I'll soon be offering a great @davemillar puzzle design called HAUNTED for some spooky fun. The art by @canowerms can be colored in! Thanks to @Phil_Bordelon for ghost busting. Sample PDF booklet w/ 24 puzzles: krazydad.com/haunted/haunte
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This lovely book is now available at Amazon, and all the other huge monopolistic online retailers. Get it while there is still a postal service! amazon.com/gp/product/194
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Launching Ephemeral Sudoku in a few days. Each book in this series will be sold for just three months, only to disappear like tears in rain. Hopefully we'll make it Volume 2!
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Hey Teachers!! I'll soon be offering a great puzzle design called HAUNTED for some spooky fun. The art by can be colored in! Thanks to for ghost busting. Sample PDF booklet w/ 24 puzzles: krazydad.com/haunted/haunte
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Launching Ephemeral Sudoku in a few days. Each book in this series will be sold for just three months, only to disappear like tears in rain. Hopefully we'll make it Volume 2!
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Someone asked for one of these today. A sandwich/consecutive/windowed Sudoku.
Just to be clear, if you are preparing class materials (and not selling them), I’m gonna grant permission. That’s what the puzzles are for! Now if I could just get them into more prison libraries...
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Slowly adding to my digital problem solving notebook. I'm grateful to @krazydad_sudoku for giving me permission to use 2 of his puzzle forms as examples. Here's today's addition.
#iteachmath
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