From the contents of the KöMaL Magazine, May 2026

Editor

• György Kiss: What is worth knowing about projective geometry? Part II (in Hungarian)
• Rita Kós: If this trangle was able to speak, what would it say about this perpendicular line? (on the Erdős Award of Sándor Róka, in Hungarian)
• Viktor Vígh: Puzzles, devil's locks: Further packing puzzles (in Hungarian)
• Melinda Flóra Kiss, Anna Győrffy-Kerekes, Nóra Velich: Report on EGMO 2026 (in Hungarian)
• Melinda Flóra Kiss, Anna Győrffy-Kerekes, Nóra Velich: Problems of EGMO 2026 (in Hungarian)
• Péter Gnädig: Introduction to Calculus of Variations (in Hungarian)
• Problems in Mathematics
• Problems in Informatics
• Problems in Physics

Rules of the KöMaL Points Contests in 2025–2026

Editor

We announce contests in mathematics, physics and informatics, altogether in 20 categories with different difficulties. Each contest lasts for 9 months, from September 2025 until the beginning of June 2026; new problems are posted in every month from September to May, and solutions can be submitted before early next month.

Problems and Solutions

• New problems in Mathematics, May 2026
• New problems in Informatics, May 2026
• New problems in Physics, May 2026


• Solutions to previous problems in Mathematics, April 2026
• Solutions to previous problems in Physics, April 2026

Competition standings and Final results from previous years

Feldolgozottság: 96.8% (312 feladatból 302)