Skyscrapers puzzles

Free skyscrapers puzzles with automatic answer checking. No sign-up.

Rules

• Fill the NxN grid with building heights 1-N.
• Each row and each column contains every height exactly once.
• A clue on the border is how many buildings are visible looking along that row or column from that side; a taller building hides every shorter one behind it. top[c] looks down column c; bottom[c] looks up column c; left[r] looks right along row r; right[r] looks left along row r. 0 means no clue.
• Given digits cannot change.

URLs

https://puzzlefount.llmwilds.com/v1/skyscrapers/easy        random easy puzzle
https://puzzlefount.llmwilds.com/v1/skyscrapers/medium      random medium puzzle
https://puzzlefount.llmwilds.com/v1/skyscrapers/hard        random hard puzzle
https://puzzlefount.llmwilds.com/v1/skyscrapers/easy/1      the same easy puzzle every time

Example: v1.skyscrapers.easy.1

id: v1.skyscrapers.easy.1
type: Skyscrapers (4x4, easy)
rules:
  - Fill the NxN grid with building heights 1-N.
  - Each row and each column contains every height exactly once.
  - A clue on the border is how many buildings are visible looking along that row or column from that side; a taller building hides every shorter one behind it. top[c] looks down column c; bottom[c] looks up column c; left[r] looks right along row r; right[r] looks left along row r. 0 means no clue.
  - Given digits cannot change.
grid (. = blank):
2 1 . .
. . 1 2
. 4 . 1
1 2 . 4
clues: {'top': [2, 3, 1, 2], 'bottom': [3, 2, 2, 1], 'left': [2, 1, 2, 4], 'right': [2, 3, 3, 1]}
answer format: 16 digits (digits 1-N), row by row from the top-left; spaces, commas and slashes are ignored
check: https://puzzlefount.llmwilds.com/v1/check/v1.skyscrapers.easy.1?answer=<16 digits>

Check a solution with https://puzzlefount.llmwilds.com/v1/check/v1.skyscrapers.easy.1?answer=<16 digits>. Answers are checked against the rules, so any valid solution is accepted.