4chests.blogspot.ca
- Title
- Logic puzzles. Daily Treasure
- Meta Description
- Logic riddles inspired by the game of the Porcia's coffers of The Merchant of Venice that Raymond Smullyan says in his book: What Is the Name of This Book?
- Meta Keywords
- 4chests, riddles, brain teasers, chests, coffers, treasure, Raymond Smullyan, Porcia, book, diary, knights and knaves logic, recreational logic, curiosities, puzzle, logic, mathematics, Ian Stewart, Martin Gardner, Sam Loyd, Malba Tahan, Perelman Yakov, ingenious, brain, logic problems