🏆 Arena Cup

Week 33

A timed weekly contest — everyone gets the same paper, and finishing it the first time moves your rating by how you did (you can sit past weeks any time).

This week's level: ≈ Thai MO (national)

A timed simulated paper — a mix of problems at this level. Answers are graded the moment you submit.

8 problems · 90 min

Past cups (sit any time)

Week 38 · this week Week 37 Week 36 Week 35 Week 34 Week 33

Rating changes only on your first entry each week · re-sit to practise (no re-rating).