Logical and Mathematical Puzzles

Links

English

     I M M I
+  B E R N I
============
 R Ä T S E L

Replace the letters by figures in a way that the calculation becomes correct.

Softwarepatents

As we'll be affected by the software patents, we'd be happy if you would find the time to inform yourself about this issue: http://www.nosoftwarepatents.com/en/m/intro/index.html

Links to Other Pages of Puzzles

Collections of Puzzles

Rätsel, Puzzles und anderer Denksport: An extensive collection of puzzles of all types (in German).
Mathpuzzle.com: All about mathematical puzzles.
Die Rätselseiten vom Rätselmann: An extensive collection of puzzels of all types (in German).
erich's puzzle palace: A collection of puzzles by Erich Friedman.
Tim's World of Puzzle: Contains a lot of puzzles, among others those of past world puzzle championships.
Java and Puzzle World: Various interactive puzzles.
Rainer Typkes Kreuzzahlrätsellöser: A page on crossnumber puzzles (in German).
JapanischeRätselseite: (japanese language)
GotFacts: Some nice puzzles.

Puzzle Contests

pqrst (puzzles quaterly rate solve ten): Quaterly puzzle competition.
US Puzzle Championship The webpage of the annual US Puzzle Championship. Citizens from other countries may participate.
Internet puzzle solvers test: Homepage of puzzle club "Diogen" with regular puzzle competitions.
24-Hour Puzzle Championship: An 24 hours puzzle marathon in Budapest.
aNDreas' Puzzle Contest: Every few days a new puzzle occurs for solving.
PuzzleUp: A weekly puzzle competition.
Turkzeka: A contest with a weekly new puzzle.

Miscellaneous

World Puzzle Federation Homepage of the World Puzzle Federation.
Puzzle Games resources Directory of Puzzle Games related websites.
Logic Mazes: A page on mazes (of Robert Abbott).

If you know a puzzle page that is not mentioned but you think it should be, don't hesitate to send us an e-mail.

Last update: 14. 04. 2005