Make each guess do useful work
Think of the game as range finding. Start with a useful estimate, read the feedback, and spend later guesses where they remove the most uncertainty.
Binary Search Method
When feedback gives you credible lower and upper bounds, choose a midpoint between them. If the midpoint is high, move the upper bound down; if it is low, move the lower bound up. This method needs real bounds from feedback and cannot guarantee a win.
Estimate from Package
Read the product name, count, weight, and size before choosing a number. A multipack or bulk format should be compared with a similar package, not a single unit. A rounded opening estimate is useful because its direction teaches you where to look next.
Unit Price Math
For a multi-item package, divide a familiar total estimate by the number of units to sanity-check your guess. Keep the package total as your game guess; unit math is only a way to catch an implausible starting point.
Worked Example
For a $12.99 target, try $20.00, then $10.00, then $15.00, then $12.50 as feedback points between high and low. The fourth guess wins because $12.50 is inside the $12.35–$13.63 winning range.
Four Guesses for $12.99
- $20.00High; move down.
- $10.00Low; move up.
- $15.00High and closer; take a smaller step.
- $12.50Inside the winning range.
Common Mistakes
- Ignoring package size and count.
- Moving only a few cents after far feedback.
- Chasing exact cents when a 5% band is enough.
- Repeating a guess without using its arrow.
FAQ
Should my first guess be precise?
No. A rounded number that gives useful direction is often a better opener.
When should I use a midpoint?
Use one after feedback gives you credible bounds on both sides.
Does unit price decide the answer?
No. It is a comparison aid; the challenge target is the package price.
How close must I be?
Within 5%. A $12.99 target accepts $12.35–$13.63.