Last updated: 18 September 2026
Website operator
Holon Puzzle
Tomasz Karczewski
Block C-15, Südstraße 31
47475 Kamp-Lintfort
Germany
Website: Element Guru
Website address: element.guru
Contact
Email: kontakt@holonpuzzle.com
Phone: +49 176 79911047
Identification numbers
VAT identification number (USt-IdNr.): DE463088071
Business identification number (W-IdNr.): DE463088071-00001
Responsibility for editorial content
Person responsible for journalistic-editorial content pursuant to Section 18(2) MStV:
Tomasz Karczewski
Block C-15, Südstraße 31
47475 Kamp-Lintfort
Germany