Choosing your first puzzle

A nonogram you can finish in under a minute teaches the form better than a nonogram you can't finish at all. Start at 5×5 easy. Not because the puzzle is challenging — it isn't — but because the rules ladder is short and the feedback is immediate.

The first thing you'll learn on a 5×5 easy is the shape of the line-solving move. Every clue is short, the row only has so many places a run can fit, and within a few cells you'll recognise the leftmost-rightmost-overlap argument as a thing your eye does automatically. Try the same move on a 15×15 medium first and you'll be solving the puzzle but you won't see the move; the puzzle does the move for you because the constraints converge. Smaller is more pedagogical.

The second is the rhythm. A nonogram is a kind of conversation between you and the grid: you put down a cell, the grid puts back a constraint you didn't see before, you put down another cell. On a small puzzle the rhythm is fast — a cell every few seconds — and you internalise it before fatigue sets in. On a larger puzzle the rhythm is slower and the lulls are longer; without a sense of the cadence, those lulls feel like getting stuck.

The third is the cross-mark habit. On a 5×5 you can solve without ever marking a cross, because the whole state fits in your head. But the puzzle quietly rewards you for marking them anyway — the moment after you fill a cell, the cells immediately before and after the run are forced empty, and crossing them off feels like a tiny tidy. That tiny tidy turns into the foundation of every 15×15 and 20×20 you'll ever solve.

A few practical pointers for the first session. Pick Easy and 5×5 and play one. Then play another one. By the third you'll feel the form clicking. At that point switch to Easy 10×10 for one — the same techniques scale up, the runs are slightly longer, the grid takes maybe three minutes. If the 10×10 felt fine, you can try Medium at the same size; if it felt like work, do another 5×5 first.

Don't go straight from 5×5 easy to 15×15 hard. The size jump and the difficulty jump are independent and stacking them is how a pleasant beginner session becomes a frustrating one. Climb one axis at a time. There's no prize for skipping rungs and the puzzles are quick enough that the rung you're on now isn't holding you back.

The single most useful habit you can form in the first ten puzzles is finish what you start. Easier said than done — the temptation to bounce off a stuck puzzle and try a new one is real, especially when the new one is just a click away. Force yourself to finish even the unsatisfying ones; that's where you learn to spot the unstuck-yourself moves. Once you've finished thirty or forty puzzles cleanly, your taste for which puzzle to play next gets reliable enough that you can skip on instinct, but until then, finish the puzzle in front of you.