$20 for writing a Spacechem puzzle that remains unsolved for 14 days when posted publicly and publicized on the Spacechem forums. Add another $20 if you write a detailed post on LW or crossposted from elsewhere explaining how you designed the puzzle and how one would go about solving it. Partial award for impressive attempts.
Some possible approaches:
If you’re extremely good at space optimization, write a single-reactor puzzle on the edge of your ability. Cram everything into the reactor and hope no one else can.
Encode some kind of public-key cryptography in Spacechem. Might be impossible.
$20 for writing a Spacechem puzzle that remains unsolved for 14 days when posted publicly and publicized on the Spacechem forums. Add another $20 if you write a detailed post on LW or crossposted from elsewhere explaining how you designed the puzzle and how one would go about solving it. Partial award for impressive attempts.
Some possible approaches:
If you’re extremely good at space optimization, write a single-reactor puzzle on the edge of your ability. Cram everything into the reactor and hope no one else can.
Encode some kind of public-key cryptography in Spacechem. Might be impossible.
More inspiration here.