Prepare for POSN Computer
From the basics to TOI
Learn step by step from camp-1 fundamentals, practise C++/Python in the browser with instant grading, and check your level with timed mock exams.
Real results from our students
In their own words (in Thai): students who went on to TOI medals and POSN camps.
Coming SoonPOSN Camp 2 Mastery - พิชิตค่าย 2 สอวน คอมพิวเตอร์
Teejuta Sriwaranon · Tee Hemjinda
-฿2000
FreeLearn, practise, then test yourself, all in one place
From your first lesson to exam day, without juggling different sites.
Step 1
Learn in order, from camp 1
Article and video lessons ordered from programming basics to competition algorithms. Your progress is saved, so you can pick up where you left off.
Step 2
Write code, get graded instantly
Write C++ or Python right in the browser, nothing to install. Submit and your code runs against test cases with instant results.
Step 3
Check your level with mock exams
Sit timed mock exams under real conditions, with instant scores and solutions, so you know where you stand before the real thing.
See mock exams
Taught by the RuffBlitz team
Every lesson and problem is written by our own team, ordered around what you need for POSN camps and TOI.
Stuck on something? Ask the team on Discord.
Frequently asked questions
What students and parents ask most before they start.