Nonogram Online
Solve a clean picture-logic board immediately, or open the library when you want a specific size, difficulty or unfinished puzzle. Every bundled source is logic-verified.
More controls & settings
Puzzle paused
The board is hidden and the timer is frozen.
Logic Coach
Train five line-deduction techniques using only clues and visible known marks. Use Explain one forced move when you want the reason, then use Sprint 60 later for mixed fluency. The Coach never uses the hidden answer to decide whether your move is forced.
Logic Coach isolates one row or column so the reason for a forced move stays visible. Daily Nonogram and Unlimited Practice remain the full-board products for complete puzzle solving.
A clue like 3 1 means a run of three filled cells, at least one empty cell, then one filled cell. Rows and columns must both agree.
The 120 bundled source grids are rejected unless repeated row/column line deductions force the complete answer. 20×20 and 25×25 derive from verified 10×10 and 5×5 sources by exact block scaling, and are re-verified for line-deduction solvability.
Daily 5×5, 10×10, 15×15, 20×20 and 25×25 boards are date-stable. Solving any size keeps the specialist streak alive; clearing all five completes the day’s Nonogram set.