The rules of Binary Sudoku are quite simple. It is very similar to regular Sudoku, except here we try to fill a 9x9 board with only black and white tiles following the below rules: Every row, column, and $3$x$3$ box (the same eight $3$x$3$ boxes in regular Sudoku) must have 2 black tiles — no mo...

I've been struggling with the first step of the beginner Rubik's cube solving algorithm with one simple problem. I am able to get the top face as all white, with blue and orange center pieces adjacent to each other. However, in the guide, in order from top, left side, and right side, the colors a...

Hokuro is a grid deduction puzzle inspired by Kakuro. Basic Hokuro rules Each cell contains one of the following symbols: Each arrow indicates a step in that direction, while the dot indicates no movement. The clues in the black cells show the sum of the movements indicated by the symbols in ...

I received the wooden puzzle below for Christmas. After playing with it for a while I decided I needed to actually write something down if I was going to solve it. Eventually I just wrote an algorithm that went through the 20736 possible locations of the dials and found the only answer. The probl...

I recently attempted an online IQ test out of curiosity, but for some reason it didn't tell me my final score... (or maybe my IQ is so low I can't find it...) It was a typical IQ test with all the usual gimmicks, a crappy number sequence, weird missing shapes etc (and although it started easy, it...

Please explain the answer to the question in detail. I know the answer, but I have not yet discovered the path to the answer.