Croatian Competitions 2023

#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 2023 Problem 1-1Croatian Mathematical Olympiad 2023DivisibilityNTSeq
Croatian Mathematical Olympiad 2023 Problem 1-2Croatian Mathematical Olympiad 2023CombinatoricsGamesTiling
Croatian Mathematical Olympiad 2023 Problem 1-3Croatian Mathematical Olympiad 2023CircumcircleGeometryParallelogramPolygon
Croatian Mathematical Olympiad 2023 Problem 1-4Croatian Mathematical Olympiad 2023ConstructionNTRational
Croatian Mathematical Olympiad 2023 Problem 2-1Croatian Mathematical Olympiad 2023AlgebraFunctional
Croatian Mathematical Olympiad 2023 Problem 2-2Croatian Mathematical Olympiad 2023CombinatoricsConstructionOptimization
Croatian Mathematical Olympiad 2023 Problem 2-3Croatian Mathematical Olympiad 2023CircleCollinearGeometryTriangle
Croatian Mathematical Olympiad 2023 Problem 2-4Croatian Mathematical Olympiad 2023NTPowersCoprime
Croatian Mathematical Olympiad 2023 Problem I-1Croatian Mathematical Olympiad 2023AlgebraInequalitiesSeq
Croatian Mathematical Olympiad 2023 Problem I-2Croatian Mathematical Olympiad 2023CombinatoricsGamesOptimization
Croatian Mathematical Olympiad 2023 Problem I-3Croatian Mathematical Olympiad 2023CircumcircleCollinearGeometryQuadTangent
Croatian Mathematical Olympiad 2023 Problem I-4Croatian Mathematical Olympiad 2023DivisibilityFactorialNTPrimes
Croatian Mathematical Olympiad 2023 Problem M-1Croatian Mathematical Olympiad 2023AlgebraInequalities
Croatian Mathematical Olympiad 2023 Problem M-2Croatian Mathematical Olympiad 2023CombinatoricsConstructionOptimizationSquare
Croatian Mathematical Olympiad 2023 Problem M-3Croatian Mathematical Olympiad 2023CentroidCircumcircleGeometryTriangle
Croatian Mathematical Olympiad 2023 Problem M-4Croatian Mathematical Olympiad 2023DiophantineDivisibilityNT
Grade 9 2023 Problem 1Grade 9 2023DiophantineNTPrimes
Grade 9 2023 Problem 2Grade 9 2023AbsAlgebraInequalitiesOptimization
Grade 9 2023 Problem 3Grade 9 2023AnglesGeometryLengthsPerpendicularityTriangle
Grade 9 2023 Problem 4Grade 9 2023AlgebraSystems
Grade 9 2023 Problem 5Grade 9 2023CombinatoricsCountingSeq
Grade 10 2023 Problem 1Grade 10 2023AreaGeometryOptimization3D
Grade 10 2023 Problem 2Grade 10 2023AlgebraQuadraticsRationalRadicals
Grade 10 2023 Problem 3Grade 10 2023CombinatoricsGeometryPolygonTriangle
Grade 10 2023 Problem 4Grade 10 2023CircleCircumcircleGeometryTangentTriangle
Grade 10 2023 Problem 5Grade 10 2023ConstructionDivisibilityNT
Grade 11 2023 Problem 1Grade 11 2023CountingGeometryLogTriangle
Grade 11 2023 Problem 2Grade 11 2023DivisibilityNTParity
Grade 11 2023 Problem 3Grade 11 2023AnglesGeometryTriangle
Grade 11 2023 Problem 4Grade 11 2023AlgebraCountingInequalitiesOptimization
Grade 11 2023 Problem 5Grade 11 2023BoardCombinatoricsGames
Grade 12 2023 Problem 1Grade 12 2023AlgebraPolynomialsSeq
Grade 12 2023 Problem 2Grade 12 2023ComplexCountingDigitsSums
Grade 12 2023 Problem 3Grade 12 2023AreaConstructionGeometrySquare
Grade 12 2023 Problem 4Grade 12 2023GeometryLengthsOrthocenterTriangle
Grade 12 2023 Problem 5Grade 12 2023DivisibilityFunctionalNT
Grade 9 2023 Problem 1Grade 9 2023AlgebraDiophantineEq
Grade 9 2023 Problem 2Grade 9 2023AlgebraEqSystems
Grade 9 2023 Problem 3Grade 9 2023NTPrimesSeq
Grade 9 2023 Problem 4Grade 9 2023GeometryIncircleTangentTriangle
Grade 9 2023 Problem 5Grade 9 2023CombinatoricsConstructionCounting
Grade 10 2023 Problem 1Grade 10 2023AlgebraFunctions
Grade 10 2023 Problem 2Grade 10 2023AlgebraEqPolynomialsQuadratics
Grade 10 2023 Problem 3Grade 10 2023DiophantineExpNTPrimes
Grade 10 2023 Problem 4Grade 10 2023GeometryParallelogramPerpendicularity
Grade 10 2023 Problem 5Grade 10 2023CombinatoricsGCDNTCoprime
Grade 11 2023 Problem 1Grade 11 2023AlgebraEqExp
Grade 11 2023 Problem 2Grade 11 2023CountingEqTrigonometry
Grade 11 2023 Problem 3Grade 11 2023AnglesGeometryTriangle
Grade 11 2023 Problem 4Grade 11 2023AlgebraEqRational