Skill Contests
Prove you know the math. Monthly challenges judged purely on accuracy and reasoning — no purchase, no stakes, no luck required.
Entries for this month close at the end of the month (your local time).
Blackjack Strategy Sprint
- Open the Blackjack Trainer in Challenge mode.
- Play 50 hands — the chart is hidden.
- Copy your score code and submit it below.
Ranking: highest accuracy wins; ties go to the faster time, then the earlier entry.
Start the sprintProbability Puzzle Challenge
Solve this month's puzzle and show your reasoning:
Loading this month's puzzle…
Judging: correct answer first, then clarity of explanation. Best explanation wins.
Prizes
Each month's prize pool is funded by sponsors and supporters and is posted on this page when confirmed. Every winner also gets a featured winner profile and a certificate. Sponsor a prize · Fund the pool.
Leaderboard
Results are published here after judging, showing first names or initials only, with winners' permission.
Fair play
One entry per person per challenge. Score codes are tamper-evident and we may ask finalists to repeat a challenge live by video call.
Enter this month's contest
Official rules (summary)
- No purchase necessary. Entry is free. Payment, donations or sponsorship never improve your chance of winning.
- Skill only. Winners are chosen solely on the published criteria (accuracy and time for the Sprint; correctness and clarity for the Puzzle). There is no element of chance in judging.
- Eligibility. Open to individuals aged 18+ (or the age of majority where they live) where such contests are lawful. Void where prohibited. e.casino team members and their households may not win.
- Entry period. Each challenge runs for a calendar month and closes at 23:59 on the last day of the month (entrant's local time). One entry per person per challenge.
- Judging & ties. Sprint: highest accuracy, then fastest time, then earliest entry. Puzzle: correct answers ranked by clarity and rigor of explanation by the e.casino editorial team. Decisions are final.
- Verification. Score codes must be valid. We may ask finalists to verify identity and age and to repeat the challenge live. Entries that appear tampered with are disqualified.
- Prizes. Prizes, if any, are announced on this page before or during the entry period. Prizes are non-transferable; we may substitute a prize of equal or greater value. Winners are responsible for any taxes.
- Notification. Winners are notified by email within 14 days of the close. If a winner doesn't respond within 14 days, a runner-up may be selected.
- Privacy. Entry data is used only to run the contest, as described in our privacy policy. With permission, winners' first names or initials and countries are published.
- Organizer. Contests are organized by e.casino. We may modify or cancel a contest if it can't run as planned, and will post any changes on this page.