Logic puzzle might be present in lieu of a grid in a puzzle about the location of different shops. Logic puzzle A logic puzzle is a puzzle deriving from the mathematics field of deduction. The logic puzzle was first produced by Charles Lutwidge Dodgson, who is better known under his pen name Lewis Carroll, the author of "Alice's Adventures in Wonderland". In his book "The Game of Logic" he introduced a game to solve problems such as confirming the conclusion "Some greyhounds are not fat" from the statements "No fat creatures run well" and "Some greyhounds run well". Puzzles like this, where
Charles Dodgson (bishop) Charles Dodgson (bishop) Charles Dodgson ( – 21 January 1795) was an English Anglican cleric who served in the Church of Ireland as the Bishop of Ossory (1765–1775) then Bishop of Elphin (1775–1795). Dodgson was born in Howden, Yorkshire. His date of birth is not recorded; he was baptised on 10 January 1722. His father, Christopher Dodgson (1696–1750), was the curate there. Charles Dodgson was educated at Westminster School and St. John's College, Cambridge. After ordination, he was appointed to the parish of Bintry, Norfolk in 1746. He moved to the north of England, keeping a school at Stanwix in