💎 11 Diamond — Monthly Contest Official Terms
Last updated: July 29, 2026
1. The Contest
The 11 Diamond Monthly Contest ("Contest") is a skill-based competition. Each calendar month (UTC), registered players earn points by solving logic puzzles. The player with the most points at the end of the month wins the prize. No purchase is necessary and no payment is accepted; the game is free to play.
2. Prize
One (1) winner per month receives a 2-carat lab-grown diamond ring (approximate retail value stated on the site at the start of each month). The prize is not redeemable for cash. The winner is responsible for any taxes where applicable. Shipping is covered by the organizer to supported countries.
3. Eligibility
- Open to individuals aged 18 or older.
- One account per person. Additional accounts belonging to the same person are void.
- Void where prohibited by law. Employees of the organizer are not eligible.
4. Scoring
- Daily Challenge: 100 base points + up to 300 speed-bonus points, once per day (UTC).
- Endless Mode: 10–70 points per solved puzzle depending on board size, up to 30 scored puzzles per day.
- Referrals: 200 points when a friend signs up via your link and solves 3 Endless puzzles. Self-referrals do not count.
- Points reset to zero at 00:00 UTC on the 1st of each month. Ties are broken by whoever reached the score first.
5. Fair Play
All solutions are verified server-side. Automated play (bots, scripts, solvers), multiple accounts, falsified timing, or any exploitation of bugs is prohibited. The top 10 finishers are manually reviewed before the prize is awarded. The organizer may disqualify any account that, in its reasonable judgment, violated these terms, and may adjust or void affected scores.
6. Winner Notification
The winner is contacted at their registered email within 7 days of month end and must respond within 14 days with a valid shipping address, or an alternate winner (next ranked) is selected.
7. Privacy
We collect your email, nickname, gameplay records, and IP address solely to operate the game and the Contest (account access, leaderboards, fraud prevention, winner contact). We do not sell your data. You may request account deletion at any time by contacting us.
8. General
The organizer may modify these terms or cancel a monthly round for technical or legal reasons, with notice on this page. This Contest is not sponsored or endorsed by any platform. Contact: support@11diamond.com.