It would be really nice to be able to use MathJaX (math formulas) in chat. Not specially for formulae, but for things like $V_{CC}$ in electronics chat would be very useful.
This is a hybrid of Four Cells and Five Cells (uses pentominoes instead of tetrominoes), with a global no-repeated-piece rule.
Rules:
The grid is to be divided along the grid lines into areas containing exactly four or five cells.
A number in a cell indicates how many of its four sides are segme...
Data pretty regularly shows that computer science programs have among the highest failure and dropout rates of any college program. A number of sources all echo the finding that roughly one-third of incoming CS majors do not progress to a second year, higher than most other majors.
Computer scie...
I looked around meta, and it seems this came up before. It seems there used to be such a tag, but it was removed for various reasons:
One reason is that it is 'meta' and describes the 'origin' of the puzzle rather than the content.
One reason is that low-quality/off-topic questions should be fl...
Recently we've been getting multiple questions asking for answers to pattern-spotting questions from external sources. Many of them are in the form of a simple number-sequence (e.g. given some numbers, predict the next number) or progressive-matrix (e.g. given a matrix of pictures with one pictur...
The problem is as follows:
The figure from below shows a sequence of numbers ordered in a tabular
form. Find the next term labeled $x$.
The alternatives given in my book are as follows:
11
9
3
5
8
This peculiar problem I found it in my puzzles book Reason and logic from 2000's. From the look...
Here is a standard Yin-Yang puzzle.
Rules of Yin-Yang:
Fill each empty cell with either a black circle or a white circle.
All white circles should be orthogonally connected, so do all black circles.
There may not be any 2x2 cell region consisting of the same circle color.
You see me everywhere.
Many times you don't even think about me but I'm still there.
Sometimes I can be present in relationships, both physical and non-physical.
Lately, I've become very important.
What am I?
My dog chooses not to go after the highest bets.
What is my dog's name?
Bonus: What is my name?
I'm not sure that the possibility of multiple equally likely answers is enough to declare a question definitively off-topic. There are sometimes answers that are very clearly correct -- in questions that do satisfy this, there's no reason to declare them off-topic a priori.
But... I do see some p...
