New puzzles are waiting for you in 2021. Solve the posted puzzles or be yourself the one to propose new puzzles.

Take care! This year, the problems will be posted on the first and third Thursday of each month. First puzzles will be online on January, 21st.

Accept the challenge! Good luck!

• The scores were reset for all users. The scores from 2019 are now available in the archive section. Good luck in 2020!
• Each user can check by clicking the username how many points he /she earned and when.
• If you want to participate or post comments, please register here.
• Each user will receive points for fully or partially correct solutions, and he/she will be visible in the ranking.
• For problems using the site or suggestions, please send an e-mail to admin(at)be-logic.ro.
• To find the active problems, use the menu on the first line of the page or click here.
• By registering on the site, you agree to make public your data (e.g.,first name, last name), your solutions, observations, comments, etc.
• To unsubscribe, send an e-mail to admin(at)be-logic.ro and ask to unsubscribe.
• The users without activity / sent solutions become inactive (to reactivate the user, send an e-mail to admin(at)be-logic.ro).
• Good luck!