EntityQ1774662· pop 17· linked from 162 articleslogic puzzleSign in to savepuzzle deriving from the mathematics field of deductionConnectionsLewis CarrollEntitymathematicsEntitymagazineEntityAlice's Adventures in WonderlandEntityriddleEntityparadoxEntitysudokuEntitycrosswordEntitysyllogismEntitydeductive reasoningEntitypuzzleEntityoptical illusionEntityproblem solvingEntitydilemmaEntitymazeEntitychess problemEntitylogic programmingEntitypuzzle video gameEntityRaymond SmullyanEntityrecreational mathematicsEntityCategoriesInformal logicLogic puzzles