NonogramVerified

Nonogram (also known as Hanjie, Picross, or Griddlers) strips the spatial puzzle genre down to its absolute, most mathematically pure and elegantly simple core, delivering a digital adaptation of the notoriously difficult Japanese picture-logic puzzle. Set against a clean, visually minimalist blank grid, players are presented with a series of numerical clues placed on the outside of every row and column. Your objective is intensely focused and brutally unforgiving: you must use pure logical deduction to determine which cells in the grid should be physically filled in (painted) and which should be left blank, eventually revealing a hidden pixel-art picture. The atmosphere is deeply cerebral and intentionally demanding, requiring an intense level of forward-thinking, cross-referencing, and process of elimination. You cannot guess; every single move must be mathematically provable based on the intersecting numbers. The visual presentation is highly functional, utilizing high-contrast grids to ensure the complex numerical constraints remain perfectly readable. It is the ultimate brain-training routine for hardcore logic fans.

How to Play

• The primary objective is to fill in the correct squares on the grid to reveal a hidden picture, using only the numerical clues provided.
• The numbers outside a row or column tell you the length of the unbroken lines of filled squares in that specific row/column.
• Example: If a row has the clue "3 2", it means there is a block of exactly 3 filled squares, followed by at least one empty space, followed by a block of exactly 2 filled squares.
• Use your Left Mouse Button to click and fill in a square you know must be painted.
• Use your Right Mouse Button (or an alternate toggle) to place an "X" in a square you mathematically know MUST be empty.
• Cross-reference the horizontal rows and vertical columns to deduce the exact locations.

Tips and Tricks

• Start with the Overlaps (The Golden Rule): The absolute most critical strategy is finding the forced overlaps. If you have a 10x10 grid, and a row clue says "8", count 8 spaces from the left, then count 8 spaces from the right. The 6 spaces in the dead center OVERLAP. Those 6 spaces MUST be filled, regardless of where the line actually starts.
• Find the "Full" Lines First: Always scan the entire board for clues that equal the exact width/height of the grid (e.g., a clue of "10" on a 10x10 board). Fill that entire line immediately. This provides massive structural anchors for the intersecting lines.
• X Marks the Spot (Crucial): Marking squares as definitively empty ("X") is equally as important as filling squares. If a row clue is "2", and you have found those 2 squares, you MUST immediately place X's in all remaining squares in that row. This instantly solves intersections for the vertical columns.
• The "Edge" Strategy: Look at the extreme outer edges (Row 1 and the last Row). If you place a block on the edge, you instantly know where the intersecting vertical lines must start, allowing you to rapidly fill the perimeter.
• Never Guess: If you guess, you will ruin the puzzle 10 steps later. Only mark a square if you can logically prove it.