MathterRiddler @MathterRiddler · Mar 20 Puzzle from the Mathter website - Two Hashes: mathter.islands.co.il/en/questions/4… #Puzzle #Invariants #CaseAnalysisCheckingCases #MinimumandMaximumProblemsOptimizationProblems #ChessboardColoring #GridPaperGeometryLatticeGeometry 3
MathterRiddler @MathterRiddler · Feb 10 Puzzle from the Mathter website - Cats for Grandma: mathter.islands.co.il/en/questions/3… #Puzzle #ReasoningLogic #CaseAnalysisCheckingCases 5
MathterRiddler @MathterRiddler · Feb 8 Puzzle from the Mathter website: mathter.islands.co.il/en/questions/17 #Puzzle #PigeonholePrinciple #CaseAnalysisCheckingCases 4
MathterRiddler @MathterRiddler · Jan 29 Puzzle from the Mathter website - Two Hashes: mathter.islands.co.il/en/questions/4… #Puzzle #Invariants #CaseAnalysisCheckingCases #MinimumandMaximumProblemsOptimizationProblems #ChessboardColoring #GridPaperGeometryLatticeGeometry 9
MathterRiddler @MathterRiddler · Jan 8 Puzzle from the Mathter website - The Beaver and the Mole: mathter.islands.co.il/en/questions/4… #Puzzle #CaseAnalysisCheckingCases #Colorings #GridPaperGeometryLatticeGeometry 5
MathterRiddler @MathterRiddler · Dec 23, 2025 Puzzle from the Mathter website - Magic Fractions: mathter.islands.co.il/en/questions/5… #Puzzle #Fractions #CaseAnalysisCheckingCases 1