New game: SkylineGlyph, a daily skyscrapers puzzle
There is a new room in the GlyphVerse. SkylineGlyph is a skyscrapers puzzle: a small city block where every lot gets a tower, every row and column holds one tower of each height, and the numbers around the edge tell you how many towers a person standing there would see.
I have wanted one of these on the site for a long time. It sits between Sudoku and Calcudoku in feel, but the clue is spatial rather than arithmetic: you hold a picture of a line in your head and work out what could be hiding behind what. It is a genuinely different kind of thinking from the other daily games, which is exactly why it earned a slot.
How the clues work
A taller tower hides every shorter tower behind it. Look along a row that reads 4 1 3 2 5 from the left: the 4 hides the 1, the 3 and the 2, and only the 5 rises above it. So a person standing on the left would count two towers, and that is the clue printed there.
Every row and column also has to be a permutation of the heights, 1 up to the size of the grid, with no repeats. Between the two rules, a handful of clues is enough to pin down a single skyline.
Three openers that crack most boards
- A clue of 1 means the tallest tower stands right next to it. Nothing else could hide the rest.
- A clue equal to the grid size means that line climbs in order: 1, 2, 3, 4, 5. Every tower is visible, so each one must be taller than the last.
- A clue of 2 rules the tallest tower out of the first spot, and rules the second tallest out of it too if the tallest is not second. Small boards fall over quickly once you combine this with the no-repeats rule.
After the openers it is elimination, the same muscle Sudoku trains: every height you fix removes an option from its row and its column. The edge clues turn gold when their line is right, so you always know which streets still need work.
Daily, plus practice at three sizes
The daily skyline is a 5×5, the same for everyone, reset at midnight UTC, with a streak and a best time saved on your device. When you want more there are endless practice boards at 4×4 (a two-minute warm-up), 5×5 and 6×6, which is where it starts to bite. A hint fills one lot and costs thirty seconds, so use it when you are stuck rather than as a habit.
The room itself is a skyline at dusk: the towers rise as you place them, the tallest one gets its aircraft light, and when the board is right the whole city switches its windows on.
Where it fits
SkylineGlyph is a logic game, so it sits with SudokuGlyph, CalcudokuGlyph and LoopGlyph in the hub, and it now shows up in the Brain Training rotation too. If you finish it in under three minutes, try the 6×6. If it takes longer, that is fine as well. The point is the thinking, not the clock.
