How to play
- Goal
- Fill every row and column with each tower height from 1 to the grid size exactly once, and make every edge clue equal the number of towers visible from its side.
- How it ends
- A chart is solved when every square is filled and all row, column and edge-view rules hold; there is no loss state.
- Record
- The fastest first solve of each chart is kept as a public record, with its holder's name.
- Fill each row and column with heights 1 through the grid size, using each height once per line. A printed number around the edge counts the towers visible from that side. A tower is visible if it is taller than every tower before it. Blank edge positions impose no clue.
- The worked picture uses real Chart 001: a 4 at the top of the first column means all four towers are visible, so the heights rise 1, 2, 3, 4 from top to bottom. Enter 1 in the first square. Select any square and tap a height below, or type 1–5 on a focused square. Printed towers stay fixed; Notes pencils possible heights.
- A chart completes automatically when every row, column and edge view agrees. A wrong height can be erased or undone; there is no loss. Restart clears entries without resetting the first clock. Replays are untimed practice. Returning to the atlas in the same page keeps the first clock and record chance; reloading an unfinished chart keeps its entries but makes its first finish local only.
Controls
| Tap / click a square, then a height | Enter or clear a tower in the selected square |
|---|---|
| Notes | Pencil possible heights without filling a square |
| Arrow keys | Move focus through the chart |
| 1–5 / Backspace | Enter a height or clear the focused square |
| N / Z | Toggle Notes or Undo while a square has focus |
| Restart | Clear entries and notes without resetting the first clock |
| Escape | Close a panel or return to the atlas |
All 160 original fixed charts have one independently verified answer, an edge-rule ablation and a no-guess deduction trace. Private witnesses do not ship. Saves use morass.skyscrapers.v1; sound follows the shared site setting. No ads or analytics run inside the game.
About Skyscrapers
From an Orenvalt watchtower, fill each brass skyline chart with tower heights. A number at an edge tells how many towers can be seen looking inward; taller towers hide shorter ones behind them.
All 160 original charts have one independently verified answer and a no-guess deduction path. Every chart needs its edge clues; removing them leaves more than one answer.
Your first finish time stays in this browser. An uninterrupted first solve can claim the named public best shown on each chart card.
