The Daily Draw
One syringe, one mark, one attempt. The same vial for everybody that day, the target stated in units so no arithmetic stands between you and the pull, and a share string as the receipt. It is hand-eye, not knowledge — a first-timer can beat a chemist.
How to play it
Drag the plunger, tap anywhere on the barrel, or step it with the − and + buttons; the draw snaps to the nearest half unit, the finest mark a U-100 barrel carries. When it looks right, press DRAW. Your score is precision — how close the draw sat to the target, as a percentage — and the target line appears only once the attempt is spent. One attempt per UTC day. The − and + buttons are a full keyboard path, so the game never requires a pointer.
Practice mode, and the arithmetic
Practice unlocks once the day’s shot is taken — rehearsing the thing you only get one go at would rather spoil it. Three rounds, and the difference is that the target is given in micrograms, so you have to convert it yourself. After each draw the working is shown: vial size divided by water volume gives a concentration, the target divided by that concentration gives a volume, and on any insulin syringe one unit is one hundredth of a millilitre. That is the whole calculation, and the same one the peptide calculator runs on real numbers.
What it is not
It is a target-practice game about reading a graduated barrel. No compound is named, nothing is recommended, and no quantity here is a suggestion of what anyone should draw. If you want the real working for real numbers, that lives in the calculators; if you want to know whether what is in the vial is what the label says, that is what the lab tests are for.
U-100 SCALE · 0–30 UNITS · 0.5U SNAP · ONE ATTEMPT PER UTC DAY · NO COMPOUND NAMED, NO QUANTITY RECOMMENDED