The main organizer of the 19th World Sudoku Championship and 33rd World Puzzle Championship is Logic Masters India (LMI).

Website: http://logicmastersindia.com/
Email: wspc2026@logicmastersindia.com

Contact Person: Amit Sowani
Email: amitsowani@gmail.com
Phone No: (91) 9008422744
Address:
G-201 Rohan Vasantha
Varthur Main Road
Marathahalli
Bangalore - 560037
Karnataka