Nonograms

Research in the Sky Scraper is unlocked by solving a Nonogram.

What is a Nonogram?

A nonogram is a logic puzzle where you fill cells in a grid to reveal a hidden picture. Numbers next to each row and column tell you the lengths of consecutive filled cell groups in that line.

Rules

• Use the clues: Each row and column has a sequence of numbers. These numbers are the sizes of filled blocks, in order.
• Respect spacing: Separate different blocks by at least one empty cell.
• No guessing required: Every step can be deduced logically from the clues and what you've already filled or marked blank.
• Mark blanks: It helps to mark definite empty cells (with right-click) to avoid mistakes and guide deductions.