How to play SizeItUp: controls, galleries and Daily five
A familiar object can become surprisingly hard to size when its surroundings disappear. In SizeItUp on FoolFish Games, a known reference gives you a starting point. Adjust the target, commit to an estimate, then discover how close you came.
Your first round: reference, target, reveal
Open SizeItUp on FoolFish and select Start exploring. Each round names a target and the measurement you are estimating. Beside it is a reference with a stated size. The reference is your ruler; the target is the object you can resize.
Read the measurement first: shoulder height and body length are different dimensions. Use the dashed axes to identify the comparison, adjust the target, then confirm when you are ready to see the answer.
- Read the target’s measurement label and the reference size.
- Resize the target with the gold corner handles or the slider.
- Select “That’s the size!” to submit your estimate.
- Read the result, then choose Next discovery; the fifth round ends with See results.
Resize the object, or adjust your view
The gold corner handles, slider and small size minus and plus buttons change your estimate. Reset returns the target to its starting size and position. Drag the object to place it more conveniently beside the reference.
The separate minus and plus buttons inside the comparison area control camera zoom. They make the scene easier to inspect, but do not change the submitted size. A larger picture on your screen is not automatically a larger estimate. Our size comparison strategy guide explains this distinction with a worked example.
- Mouse: drag a gold corner handle or use the size slider.
- Touch: drag a corner handle or move the slider.
- Desktop keyboard: focus the comparison area, then use left and right arrows to fine-tune size, Enter to submit or advance, and 0 to reset while playing.
One game, 70 objects, six categories
The current FoolFish release contains 70 objects. Everything mixes the full collection; the other galleries narrow ordinary play to one subject. These are choices within SizeItUp, rather than separate games.
Animals contains 13 objects; Landmarks has 12; Geography has 11; Nature has 12; Space has 11; Vehicles has 11. Start with a subject you recognize if you want a gentler first session. Pick Everything when you want to switch between very different scales.
The Collection button opens your cabinet of discoveries. Submitting a question adds that object even when your estimate is poor. You do not need a perfect score to discover something unfamiliar.
Five-round exploring and replayable Daily five
Start exploring draws five different objects from your selected gallery. A new ordinary session starts a fresh draw for practice; objects can appear again across sessions. The home screen can offer Continue your exploration if you leave an unfinished run.
Daily five also has five rounds, but draws from Everything regardless of the gallery you selected. Its date follows UTC, so the daily change may happen at a different local hour from midnight where you live. The daily selection is replayable; it is not restricted to one attempt.
Both choices use the same rules. Use ordinary play to learn a subject, and Daily five for a mixed challenge. The separate Wordle practice guide explains another puzzle with daily feedback.
Read the result before moving on
After submission, the display compares the reference, your guess and the actual size used for that question. The result panel lists Your guess, Answer and Error, followed by a short fact. Notice the direction of your mistake: was the target too large, too small, or merely a little off?
In the captured train round below, a 332.3-metre guess is compared with the selected 404.7-metre answer. The displayed error rounds to 18%, and the round earns 92 points. The result is feedback on the named measurement: the N700 16-car trainset, rather than one carriage.
Each question is worth up to 100 points, so five rounds have a maximum of 500. An estimate within 6% of the selected answer guarantees full marks. Beyond that range the score falls as percentage error grows, with rounding applied. A displayed 100 does not necessarily mean an exact measurement.
The completed session shows all five scores and can improve your personal best. Collection progress records discovered objects; your score measures estimation accuracy.
A better habit for your next five guesses
Before submitting, say the relationship to yourself: smaller than the reference, twice its size, or several times larger. This catches large mistakes. Refine the target rather than repeatedly changing the camera view.
Use each reveal as a memory anchor, not as a promise that the next question will use that same reference. Read the new labels again. Measurements may describe a chosen model, a particular dimension or a representative animal; a remembered number only helps when it matches the question.
Pause whenever you need a break. Continue to the SizeItUp strategy guide for ratios and percentage error, or browse more puzzle games for a change of pace.
Common questions
Does SizeItUp have 70 games or 70 objects?
It is one game with 70 objects across six categories. Everything is the mixed gallery, alongside the six subject galleries.
Can I replay Daily five?
Yes. Daily five is replayable and uses the UTC date. Ordinary five-round exploring is also available.
Do I need a high score to add an object to the Collection?
No. Submitting the question adds that object to your discoveries; it does not require a perfect score.
What should I do if some pictures fail to load?
The game hides questions whose pictures did not load. Reload to retry, or choose another gallery with enough available objects. If the problem persists, use Help & report a problem on the game page.