How OpGlyph works (60 seconds)
Fill the operator blanks, compute left to right, and use feedback to lock the right operators in the right slots.
1) What it is
OpGlyph is a daily operator deduction puzzle. You are given a line of digits with question mark slots between them, plus a target. Your job is to choose the operators for the slots so the whole expression evaluates to the target.
The twist is the rule: there are no parentheses and no normal operator precedence. The calculation always runs left to right. That makes the puzzle feel very different from school arithmetic, and it creates quick little logic moments once you lean into it.
2) How to play
Tap a question mark slot to select it, then choose an operator: + − × ÷. Fill every slot, then press Enter to commit a try. You can change operators as much as you like before Enter.
When you press Enter, OpGlyph evaluates the expression strictly left to right and checks it against the target. Then you get feedback for each operator slot so you can refine your next attempt.
3) Feedback legend
Each slot gets Wordle style feedback after you press Enter.
Play it like a clean deduction loop. Keep greens fixed. Move yellows to new slots. Stop using anything that comes back as not used.
One key rule that matters
OpGlyph always evaluates left to right. Example: 8 ÷ 2 × 5 becomes (8 ÷ 2) = 4, then 4 × 5 = 20. This is why a single operator swap can completely change the outcome.
Example round, step by step
The exact digits change each day, but the solve rhythm stays the same.
Look at the target and the size of the digits. Ask one simple question. Do you need the value to grow fast, shrink fast, or hover near the same range. That tells you whether you probably need a times early, a divide early, or mostly plus and minus.
Fill every slot and press Enter. Do not wait for perfection. The first attempt is mainly to discover which operators are in the solution at all, and whether any slot is already locked green.
On your next try, keep every green exactly where it is. For yellows, move them into other slots. If you have multiple yellows, swap them around while keeping greens fixed.
If an operator comes back as not used, stop using it. This is the fastest way to reduce noise. Once you are down to two or three possible operators, the remaining placements become much easier.
If your result is far above the target, you likely need a divide earlier or a minus where you currently have plus. If you are far below, you likely need a times earlier or a plus where you currently have minus. Small direction checks like this save tries.
Before your final Enter, read it like the game reads it, left to right. Do a quick mental pass. One slot often stands out as the only place an operator could realistically sit.
With two operator slots, each try is very informative. You can often solve by locking one green, then swapping the other operator into place.
With four slots, speed comes from elimination. Once you identify an operator that is not used, remove it completely and your next tries get cleaner fast.
Common questions
That rule is the point. Left to right evaluation creates different outcomes and makes the operator placements more interesting to deduce.
The digits and target are locked. You are only guessing which operators appear, and which slot each one belongs in.
Yellow means the operator is part of the solution, but you placed it in the wrong slot. Move it, do not discard it.
Usually no. Treat it as eliminated unless you have a strong reason to test it again.
Do fewer changes per try. Lock greens, relocate yellows, and stop using eliminated operators. Fast wins look calm.
Yes. The digits, target, and solution stay the same for the day, so you can come back later and finish.
Other games you might like
If you enjoy quick deduction with clean rules, try these next.
Made by me 👋
OpGlyph is one of my calm daily brain trainers — tiny rules, quick “aha”, and you feel a bit sharper after a minute or two. One puzzle per day (UTC), three modes, six tries.
Contact: @numberglyph