JonMark Perry

belbroughton, uk

https://www.khanacademy.org/profile/JonMarkPerry/

Amateur Programmer
Reasonable Mathematician
Professional Liar
Funny Person

crystal lattice

top accounts reputation activity subscriptions

Reversed Sudoku

sudoku reverse-puzzling asked Mar 11, 2019 at 11:47

puzzling.stackexchange.com

15 votes

The Vowel Eater

trivia english quote asked Aug 18, 2016 at 10:48

puzzling.stackexchange.com

15 votes

Is this 3d Sudoku possible?

optimization puzzle-creation sudoku three-dimensional asked Jun 18, 2019 at 15:59

puzzling.stackexchange.com

14 votes

1 dimensional jigsaw

jigsaw-puzzle asked Aug 31, 2018 at 7:28

puzzling.stackexchange.com

13 votes

Are there plans to involve Area51 in SE API version 3?

feature-request api area51 asked Mar 21, 2015 at 4:52

stackapps.com

13 votes

4-dimensional Knight's Tour

knight-moves four-dimensional asked Aug 8, 2019 at 10:24

puzzling.stackexchange.com

13 votes

What are the differences of the Open Connectivity Foundation membership levels?

ocf asked Dec 6, 2016 at 17:13

iot.stackexchange.com

12 votes

A Domino Rectangle

dominoes packing asked May 16, 2019 at 15:55

puzzling.stackexchange.com

12 votes

Lego Escher structures

building design asked Feb 21, 2015 at 15:52

bricks.stackexchange.com

10 votes

Game of Life meets Chaos Theory

cellular-automata asked Apr 29, 2019 at 10:00

puzzling.stackexchange.com

Top Answers

237

Correct way to add 22 to 4 to get 82

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Mathematical symbol for 'slightly greater than'?

math.stackexchange.com

Make a square with matchsticks!

puzzling.stackexchange.com

Remove my last letter and I could become lethal

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How can you compute in your head?

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A truly amazing way of making the number 2016

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Half filled water bottle

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Suppose $M$ is an $m \times n$ matrix such that all rows and columns of $M$ sum to $1$. Show that $m=n$

math.stackexchange.com

Can anyone help me out with this?

puzzling.stackexchange.com

Make 0 0 0 0 = 8

puzzling.stackexchange.com

Friendly way of saying "I love you"

english.stackexchange.com

What's the radius?

puzzling.stackexchange.com

How to write lengths of time in a short way with numbers

english.stackexchange.com

Three boxes, Four questions, Three times not true, Once the truth

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Astronomical number sequence

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The volumes of the encyclopedia

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A different Traveling Salesman problem

puzzling.stackexchange.com

6+8=71 move two matches

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Solving "odd one out" problems. What am I doing wrong?

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Four ships at the ocean with the same distance

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When was I born?

puzzling.stackexchange.com

More direct approach to a combinatorial problem

math.stackexchange.com

The Cryptic Writing On The Wall

puzzling.stackexchange.com

How much had really been ordered?

puzzling.stackexchange.com

Is there an idiom for "Your decision can change at the last moment"

english.stackexchange.com

Can you find a trophy on this page?

puzzling.stackexchange.com

Noughty Mathematics Question

puzzling.stackexchange.com

What is the next shape in this sequence?

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Make 5 5 5 5 = 19

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Four matchsticks puzzle

puzzling.stackexchange.com