Angle Loop is a puzzle type that I first saw in Toketa Vol. 2. There’s a lot of great puzzles in there, but this type really stands out. Two puzzles below.
Puzzles 50 & 51: Angle Loop
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Author Archives: rob
New release of puzzle-draw: 0.1.0.4
I’ve released an updated version of my puzzle-drawing tool, install from hackage or get the source. It’s a rather incremental update.
Changes include:
- a nicer font
- the README now has brief installation and usage instructions
- there’s no longer a separate package for the command line tool
- some new puzzle types and rendering improvements
I’ve also updated the demo webapp, it now has examples for almost all supported puzzle types.
Puzzle 49: Cave
This is a Cave puzzle.
Puzzle 48: Aussichtspunkte
This is a puzzle I found in the depths of my puzzle folder. I probably made it after struggling with the puzzles of this type on the contest Best of HCS, which featured one that is thematically similar. EDIT Replaced by a non-broken if less pretty version.
Rules Split the grid into 5 orthogonally connected areas of 5 cells each. The given numbers indicate how many cells within the area can be seen horizontally and vertically, including the cell itself. The givens are in those cells where this number is maximal for the corresponding area.
Or see the puzzle wiki for German instructions that include an example.
Puzzle 47: Symmetric LITS
A second symmetric LITS. As before, solve as LITS, such that the shaded cells are symmetric around the centre.
Puzzle 46: Kaputte Bahnhöfe
Here’s some broken train stations to celebrate placing first in the recent Bahnhöfe series on CrocoPuzzle.
Rules Blacken one of each pair of identical numbers, then solve as a regular Bahnhöfe puzzle: Draw a loop that visits every cell (except the blackened stations), travelling vertically and horizontally. The loop crosses itself at the cells marked ‘+’, and can not touch itself otherwise. The loop goes straight through each (unblackened) number, and visits them in order.
There’s an example on the wiki.
Puzzle 45: Symmetric LITS
Here’s a LITS puzzle, with the extra constraint that the solution must have 180º rotational symmetry around the centre. I wouldn’t be surprised at all if this had been done before.
Puzzles 43 & 44: Geradeweg
Here’s two quick Geradeweg puzzles.
Puzzle 42: Missing Labyrinth
Here’s a practice puzzle I made in London. It took me a while to get it typeset.
Rules Place some walls along grid lines to form a non-branching labyrinth leading from start to finish and visiting every cell. Clues indicate the lengths of all walls ocurring in that row/column. Questionmarks stand for any positive integer.
In other words, draw a path from S to F that travels horizontally and vertically between cell centres, visits every cell, and doesn’t cross itself, then draw walls along every edge that isn’t crossed by the path. The number of question marks outside a row/column is the number of walls of any length in that row/column. Unclued rows/columns can have any number of walls.
You can find better rules and an example in the WPC instruction booklet.
Puzzle 41: Fractional Skyscrapers
Here’s another fractional skyscrapers puzzle. Numbers 1-7. Edit: flipped, prettier this way.
Maybe Puzzles 