FYKOS

Experience physics with us!

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

First Time Here? News About Us

Deadline Series 4 | Feb 22, 2026

Deadline Series 5 | Mar 29, 2026

Deadline Series 6 | May 10, 2026

For Those Who Know FYKOS Well

News and Updates

Postponed submission deadline

Problem Statement

The submission deadline for Problem S in Series 5 is postponed to April 10, 2026, 23:59.

Fyziklání je za námi

Competition results

This year's Fyziklání is successfully behind us. You can already find the assignment and solutions to the problems or how the teams performed on the our website. At the same time, you can look forward to photos from the competition in the near future.

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?