🏙 摩天楼谜题Skyscraper Puzzle
在线摩天楼谜题：在 4×4 到 6×6 的城市里给每个格子盖一栋 1 到 N 层的楼，每行每列高度各不相同，四周的数字表示从那个方向看过去能看到几栋楼（高楼会挡住后面的矮楼）。题目随机生成并保证唯一解，三档难度，支持撤销、检查、提示和计时。Skyscraper puzzle online: place a building of height 1 to N in every cell of a 4×4 to 6×6 city so each row and column has every height once, while the numbers around the edge say how many buildings you can see from that side (taller ones hide shorter ones behind them). Random puzzles with a unique solution, three levels, undo, check, hints and a timer.
点选格子后输入楼层高度（数字键或下方按钮）。外圈数字是从该方向看过去能看到的楼数；一整行或一整列填满后若与提示不符会变红。Select a cell and enter a height (keyboard or the buttons below). Edge numbers count the buildings visible from that side; a completed row or column that disagrees with its clue turns red.
玩法说明与常见问题How to play & FAQ
「摩天楼谜题」怎么玩？How do I play Skyscraper Puzzle?
每个格子代表一栋楼，数字就是楼的高度。每行、每列都必须恰好包含 1 到 N 各一次。站在边上沿着这一行（列）看过去，高的楼会挡住它后面更矮的楼，提示数字就是能看到的楼的数量。几个常用技巧：提示为 1 时，紧挨着它的一定是最高楼 N；提示为 N 时，这一行从近到远一定是 1、2、…、N；提示越大，最高楼离这一侧越远。Each cell is a building and the number is its height. Every row and column must contain 1 to N exactly once. Looking along a row or column from the edge, taller buildings hide shorter ones behind them, and the clue is how many you can see. Handy tips: a clue of 1 means the nearest building is the tallest N; a clue of N means the line reads 1, 2, …, N from that side; the bigger the clue, the further the tallest building is from that edge.
为什么有的格子已经给出数字？Why are some cells already filled?
部分题目只靠外圈提示无法得到唯一答案，生成器会补充少量已知楼层，保证题目只有一个解。Some layouts cannot be pinned down by edge clues alone, so the generator adds a few known heights to guarantee a single solution.
外圈有的地方没有数字？Some edge positions have no number?
较难的题目会去掉一部分提示，只要剩下的提示足以推出唯一答案即可。Harder puzzles remove some clues, keeping just enough for a unique answer.
「摩天楼谜题」免费吗？需要下载吗？Is Skyscraper Puzzle free? Do I need to download anything?
完全免费，无需注册、下载或安装，打开网页就能玩，手机、平板和电脑都支持；游戏完全在你的浏览器本地运行，不会上传任何数据。It is completely free with no sign-up, download or install — just open the page on a phone, tablet or computer. The game runs entirely in your browser and nothing is uploaded.