FYKOS

Experience physics with us!

FYKOS has been organizing non-profit educational events in physics for 39 years.

First Time Here? News About Us

Physics Brawl Online | Nov 26, 2025

Deadline Series 3 | Jan 11, 2026

Fyziklani | Feb 13, 2026

For Those Who Know FYKOS Well

News and Updates

Registration for Fyziklání is now open

Registration

We have opened registration for Fyziklání 2026, which will take place on February 13 in Prague. You can look forward to a team-based competition focused on solving interesting physics problems, as well as a rich accompanying program. So don't hesitate and register your team!

Results of Physics Brawl Online

Results

The 15th edition of the Fyziklání Online competition took place on November 26. You can see how the teams performed in the published results.

Our Main Events

What Do We Organize?

FYKOS organizes about ten educational events for high school students every year. Here you can find the main ones.

Page of All Events Calendar

1. 9. 2025

31. 5. 2026

Competitions and Excursions

Nov 26

Worldwide competition open to everyone

Feb 13

The largest team physics competition in Europe

Sep 1, 2025

May 31, 2026

FYKOS Series

Deadline Series 1

Oct 5

vodyanoy, cupcakes and an elliptical lens

Deadline Series 2

Nov 16

time, ball and induced interaction

Deadline Series 3

Jan 11

toilet paper, resistance and a drunken chamber

Deadline Series 4

Feb 22

trees, rocket and a jump to the Moon

Deadline Series 5

Mar 29

beans, beam and a small magnet

Deadline Series 6

May 10

swing, pancake and a devoured garden

Unconventional Physics Problems That Will Test Your Skills

Physics Correspondence Competition

Physics Correspondence Competition is our oldest traditional event. It takes place throughout the year and each edition is divided into 6 series (which are represented by their numbers on the timeline above). Here is a brief description of how the seminar works.

About the Competition Complete Rules Current Series Assignment

Check Out the Current Series Problems

You can find the directly here on the website. You don't have to solve all the problems, every attempt counts.

Upload Solutions to FKSDB

You can write by hand and scan or write directly electronically. We only accept the pdf format.

View Your Corrected Solutions

Our organizers will correct your solutions and send them back to you, helping you improve. We also publish sample solutions.

A Taste of Our Events

What Can You Experience With Us?