Before you begin
Prism takes one hour and asks for your full attention. This is how it works.
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Set aside a full hour
The clock runs for sixty minutes from the first question and never pauses, not even if you close the tab.
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Choose a quiet place
Some puzzles move and some play short sequences. Sound is off unless you turn it on.
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Stay in this browser
Your session is tied to this browser. If you leave, come back here to continue where you stopped.
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Every answer is final
Questions come one at a time. You can skip a question, but you cannot go back to it.