Regex Crossword is a site featuring puzzles that test the visitor’s knowledge of regular expressions. This is very fun and very evil.

Just another nerd.
Regex Crossword is a site featuring puzzles that test the visitor’s knowledge of regular expressions. This is very fun and very evil.
Bandai is releasing a series of Rubik’s Charaction Cubes which are Rubik’s Cube-style seven piece puzzles.
This paper puzzle version of King’s Landing measures 30″ x 12″ x 8″. Typically the 4D in these puzzles refers to time where you build historical cities like London or New York by adding the buildings to the landscape in the order that they were actually constructed. Are there elaborate histories of how King’s Landing was constructed?
Tony Fisher built what he believes is the world’s largest working Rubik’s Cube.
Solitaire Chess is a chess-based logic game published by Think Fun.
The game takes place on a 4 x 4 chessboard with various pieces placed on different squares, like this screenshot from the Android version of the game:
As in chess, you move one piece at a time, and all the pieces have to be moved according to standard chess rules.
You can start by moving any piece, but every move must result in the capture of a piece, and you “win” or solve the puzzle by capturing every piece until there’s just one left. Y
You can (and usually must) move multiple pieces, so in the above example the solution is to capture the Queen with the Knight, then capture the Knight with the Bishop, and then finish by capturing the Rook with the Bishop.
These start out easy and get very challenging. Solitaire Chess started out as a board game, which ThinkFun sells on its website for $19.99.
The board game version comes with 30 challenge cards that are double-sided, so there are 60 puzzles to solve.
The Android version goes for $1.99 on the Play store and includes 400 puzzles, divided equally into 100 easy, medium, hard and expert puzzles.
This was easily the best $1.99 I’ve spent on an Android game.