Rules

How to Play

Calculate the target number using the given set of numbers and the mathematical operations , , and .

Get as many points as possible before the timer runs out.

The Timer

Every time you complete or submit a board, time will be added to the timer based on your score for that board. The amount of seconds added is your score times your multiplier.

The multiplier starts at 2. Every time you complete a board with the target number (a perfect score), your multiplier increases by 0.2 up to a maximum of 3. If you skip/submit a board with a score of 0, your multiplier decreases by 0.2 down to a minimum of 2.

Scoring

Your score depends on how close you are to the target number. For example, let's say the target number is 200. An exact match will get you a perfect score of 5; 1 away would be a score of 4; within a 1% range (2 away in this example) would be a score of 3; within a 5% range (10 away) would be a score of 2; and 10% (20 away) would be a score of 1. Any farther from the target and your score is 0.