Here’s another Anti-Chess sample puzzle: this one’s a bit harder than the last one. This one’s a HARD (4/5…BRAIN/IQ) Anti-King Killer (this puzzle was originally classified insane, but is actually easier than the insane puzzles in the book) Anti-King means that no two cells one king’s move move away from each other in chess can […]
It’s been quite a while since I last posted a CalcuDoku puzzle. I’m going to fix that now and to make it up to you, it will be a somewhat special variant of Square Wisdom puzzles. It’s an overlapping, 2 in 1 (Gattai-2), CalcuDoku puzzle, which is essentially in a TwoDoku layout. Remember the rules: […]
This should be a tough one – perhaps too tough? It’s only rated “BRAIN”, but the layout makes it quite difficult, I think. 5 overlapping Jigsaw Sudoku puzzles put together in the Flower Sudoku (Gattai-5) layout, which is similar to Samurai Sudoku but not exactly the same. Make sure to use the “Twin Nonets” solving […]
Here is a new variant of Outside Sudoku puzzles: Sudoku Straights. The rules of Outside Sudoku are explained here. The rules of Sudoku Straights are explained here. Now, all you need to do is combine them and apply them both. It’s a rather difficult puzzle (or so I think). What do you think? Outside Sudoku […]
Here is a puzzle that I think deserves a lot of attention: TriDoku! It’s a great puzzle-type but for some reason it’s very rarely seen in the Sudoku world. I want to change that! Even though it may not appear obvious, there are 81 cells in this puzzle. And there are 9 nonets. Just like […]
Another kind of puzzles that I’ve started creating recently… Slitherlink! These puzzles are also known under many different names. Slitherlink puzzles are not a Sudoku variant. They can be of any size and the rules are: 1. Connect the dots to form a single loop with no points of intersection. 2. The clues given tell […]
Another addition to my portfolio of various number/logic puzzles are Nurikabe puzzles. I think these puzzles are being undeservedly somewhat neglected in the puzzle world and I intend to change that. The number of solving techniques and approaches that can be found in Nurikabe puzzles far exceeds any other puzzle type. For me it was […]
Here is very difficult Killer Sudoku puzzle. There are two Zero Killer Sudoku puzzles overlapping each other in the TwoDoku format. The difficulty is rated IQ. What do you think? Zero Killer Twodoku for Saturday, September 20, 2008 Click on the puzzle thumbnail to access the puzzle.