Each clue lists the lengths of filled runs in order. Separate neighboring runs with at least one empty cell and mark proven empty cells with X.
Nonogram is a picture logic puzzle built from ordered run clues rather than arithmetic. A number beside a row says how many consecutive cells belong to each filled block, while several numbers preserve the left-to-right order of separate blocks. Column clues work from top to bottom. This compact board starts immediately and has one verified solution, so every safe deduction contributes to the same final pixel picture.
Click or tap a grid cell to fill it teal. Tap the same filled cell again to clear it. Keyboard players move the gold cursor with the arrow keys, press Space or Enter to fill, and press X to mark an empty cell. The mobile strip provides previous-cell, fill, cross, and next-cell buttons, each at least 44 pixels tall. Reset restores the untouched puzzle immediately.
Correctly classified cells earn twenty points, whether they are filled picture cells or proven empty cells. Completing an entire row or column adds a line bonus, rewarding deductions that settle every position rather than isolated guesses. Finishing the unique picture adds the largest bonus and updates Best in localStorage on this device. There is no countdown and no forced game over after an error; you can revise marks until the grid is logically complete. Ratings rise from Solver through Grid Detective to Logic Master as the verified score grows.
Start with the most constrained line. Compare the total run length plus mandatory separators with the available cells; when they nearly match, overlapping placements reveal guaranteed fills. After placing a block, mark cells immediately beyond its confirmed ends with X so it cannot accidentally grow. Revisit crossing clues after every completed run because one new fill or cross can reduce several possibilities elsewhere. Avoid guessing between symmetric choices. If two placements remain possible, switch to another row or column and return when a crossing deduction breaks the tie.
On a small screen, use the gold cursor and the large fill and cross buttons when a fingertip would cover a clue. Work one line at a time and pause to compare its run total before marking several cells. The responsive full-screen canvas keeps clues beside the grid, while the fixed control strip stays below the active puzzle. Deliberate single taps are safer than rapid tapping because filled and crossed states cycle independently.
Start with the most constrained line.
On a small screen, use the gold cursor and the large fill and cross buttons when a fingertip would cover a clue.
Nonogram: Correctly classified cells earn twenty points, whether they are filled picture cells or proven empty cells
Each clue lists the lengths of filled runs in order. Separate neighboring runs with at least one empty cell and mark proven empty cells with X.