Croatian Competitions 2025

#CompetitionYearsProblemsYears
Croatian National Competitions
1Grade 91992–2026159
2Grade 101992–2026159
3Grade 111992–2026158
4Grade 121992–2026159
Croatian County-Level Competitions
5Grade 92015–202660
6Grade 102015–202660
7Grade 112015–202660
8Grade 122015–202660
Croatian School-Level Competitions
9Grade 92020–202649
10Grade 102020–202649
11Grade 112020–202649
12Grade 122020–202649
13Croatian Mathematical Olympiad2010–2025252
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ProblemSourceTags
Croatian Mathematical Olympiad 2025 Problem 1-1Croatian Mathematical Olympiad 2025AnglesGeometryPerpendicularityTriangle
Croatian Mathematical Olympiad 2025 Problem 1-2Croatian Mathematical Olympiad 2025CombinatoricsOptimizationPowers
Croatian Mathematical Olympiad 2025 Problem 1-3Croatian Mathematical Olympiad 2025DivisibilityNTPrimesSeq
Croatian Mathematical Olympiad 2025 Problem 2-1Croatian Mathematical Olympiad 2025DivisibilityNTSeq
Croatian Mathematical Olympiad 2025 Problem 2-2Croatian Mathematical Olympiad 2025AlgebraFunctionalPolynomials
Croatian Mathematical Olympiad 2025 Problem 2-3Croatian Mathematical Olympiad 2025CircumcircleGeometryIncircleOrthocenterTriangle
Croatian Mathematical Olympiad 2025 Problem 3-1Croatian Mathematical Olympiad 2025AlgebraFunctionsInequalities
Croatian Mathematical Olympiad 2025 Problem 3-2Croatian Mathematical Olympiad 2025CircumcircleCyclic quadGeometryQuad
Croatian Mathematical Olympiad 2025 Problem 3-3Croatian Mathematical Olympiad 2025CombinatoricsCountingOptimization
Croatian Mathematical Olympiad 2025 Problem 4-1Croatian Mathematical Olympiad 2025BoardCombinatoricsOptimization
Croatian Mathematical Olympiad 2025 Problem 4-2Croatian Mathematical Olympiad 2025DivisibilityFactorialNT
Croatian Mathematical Olympiad 2025 Problem 4-3Croatian Mathematical Olympiad 2025AbsAlgebraInequalitiesOptimization
Grade 9 2025 Problem 1Grade 9 2025AbsAlgebraSystems
Grade 9 2025 Problem 2Grade 9 2025AlgebraSystems
Grade 9 2025 Problem 3Grade 9 2025AlgebraExpNT
Grade 9 2025 Problem 4Grade 9 2025BoardCombinatoricsTiling
Grade 9 2025 Problem 5Grade 9 2025AnglesGeometryParallelogram
Grade 10 2025 Problem 1Grade 10 2025AlgebraSystems
Grade 10 2025 Problem 2Grade 10 2025Optimization3D
Grade 10 2025 Problem 3Grade 10 2025ExpNT
Grade 10 2025 Problem 4Grade 10 2025CircumcircleGeometryTriangle
Grade 10 2025 Problem 5Grade 10 2025BoardCombinatoricsCounting
Grade 11 2025 Problem 1Grade 11 2025AlgebraExpSystems
Grade 11 2025 Problem 2Grade 11 2025DivisibilityNT
Grade 11 2025 Problem 3Grade 11 2025CombinatoricsOptimizationTables
Grade 11 2025 Problem 4Grade 11 2025CircumcircleGeometryTriangle
Grade 11 2025 Problem 5Grade 11 2025FactorialNTPrimes
Grade 12 2025 Problem 1Grade 12 2025DivisibilityModNT
Grade 12 2025 Problem 2Grade 12 2025AlgebraFunctional
Grade 12 2025 Problem 3Grade 12 2025DivisibilityNT
Grade 12 2025 Problem 4Grade 12 2025AnglesGeometryIsoscelesTriangle
Grade 12 2025 Problem 5Grade 12 2025BoardColoringCombinatoricsOptimization
Grade 9 2025 Problem 1Grade 9 2025AlgebraEqOptimization
Grade 9 2025 Problem 2Grade 9 2025AreaGeometryPerpendicularityTriangle
Grade 9 2025 Problem 3Grade 9 2025DivisibilityFactorialNT
Grade 9 2025 Problem 4Grade 9 2025AlgebraInequalitiesOptimization
Grade 9 2025 Problem 5Grade 9 2025BoardCombinatoricsOptimization
Grade 10 2025 Problem 1Grade 10 2025AreaCircleGeometryOptimization
Grade 10 2025 Problem 2Grade 10 2025AlgebraRadicalsSystems
Grade 10 2025 Problem 3Grade 10 2025CompositeNTPrimesQuadratics
Grade 10 2025 Problem 4Grade 10 2025GeometryPerpendicularityRight triangleTriangle
Grade 10 2025 Problem 5Grade 10 2025BoardCombinatoricsOptimization
Grade 11 2025 Problem 1Grade 11 2025AlgebraEqExpTrigonometry
Grade 11 2025 Problem 2Grade 11 2025NTOptimizationPowers
Grade 11 2025 Problem 3Grade 11 2025AlgebraSumsTrigonometry
Grade 11 2025 Problem 4Grade 11 2025GeometryIncircleRight triangleTriangle
Grade 11 2025 Problem 5Grade 11 2025CombinatoricsGraphsOptimizationPolygon
Grade 12 2025 Problem 1Grade 12 2025AlgebraRecurrencesSeq
Grade 12 2025 Problem 2Grade 12 2025AlgebraComplexSystems
Grade 12 2025 Problem 3Grade 12 2025EqNTPowers