Croatian Competitions 2026

#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
Grade 9 2026 Problem 1Grade 9 2026AbsAlgebraSystems
Grade 9 2026 Problem 2Grade 9 2026AlgebraInequalitiesRadicals
Grade 9 2026 Problem 3Grade 9 2026AreaCoordGeometrySquare
Grade 9 2026 Problem 4Grade 9 2026CombinatoricsCountingTiling
Grade 9 2026 Problem 5Grade 9 2026DiophantineNTPowers
Grade 10 2026 Problem 1Grade 10 2026AreaGeometryOptimizationRight triangle
Grade 10 2026 Problem 2Grade 10 2026AlgebraCountingFunctions
Grade 10 2026 Problem 3Grade 10 2026DivisibilityNT
Grade 10 2026 Problem 4Grade 10 2026CombinatoricsOptimizationTiling
Grade 10 2026 Problem 5Grade 10 2026CircumcircleGeometryOrthocenterTriangle
Grade 11 2026 Problem 1Grade 11 2026AlgebraSums
Grade 11 2026 Problem 2Grade 11 2026AlgebraEqExp
Grade 11 2026 Problem 3Grade 11 2026LogNT
Grade 11 2026 Problem 4Grade 11 2026CircleGeometryIncircleTriangle
Grade 11 2026 Problem 5Grade 11 2026CombinatoricsEquilateralGames
Grade 12 2026 Problem 1Grade 12 2026AlgebraSeq
Grade 12 2026 Problem 2Grade 12 2026CircleCircumcircleGeometryRight triangle
Grade 12 2026 Problem 3Grade 12 2026DivisibilityGCDNT
Grade 12 2026 Problem 4Grade 12 2026AlgebraCountingPolynomials
Grade 12 2026 Problem 5Grade 12 2026CombinatoricsGraphsOptimization
Grade 9 2026 Problem 1Grade 9 2026AlgebraEq
Grade 9 2026 Problem 2Grade 9 2026AlgebraDiophantineNTSystems
Grade 9 2026 Problem 3Grade 9 2026AnglesAreaGeometryTriangle
Grade 9 2026 Problem 4Grade 9 2026AlgebraFunctionsSystems
Grade 9 2026 Problem 5Grade 9 2026BoardCombinatoricsTiling
Grade 10 2026 Problem 1Grade 10 2026AlgebraInequalitiesQuadratics
Grade 10 2026 Problem 2Grade 10 2026DivisibilityNTOptimization
Grade 10 2026 Problem 3Grade 10 2026EquilateralGeometrySquare
Grade 10 2026 Problem 4Grade 10 2026AlgebraEqInequalities
Grade 10 2026 Problem 5Grade 10 2026BoardCombinatoricsGamesOptimization
Grade 11 2026 Problem 1Grade 11 2026AlgebraLogSystems
Grade 11 2026 Problem 2Grade 11 2026AlgebraInequalitiesTrigonometry
Grade 11 2026 Problem 3Grade 11 2026DivisibilityNTRadicals
Grade 11 2026 Problem 4Grade 11 2026AnglesAreaGeometryQuad
Grade 11 2026 Problem 5Grade 11 2026CombinatoricsConstruction
Grade 12 2026 Problem 1Grade 12 2026AlgebraSeq
Grade 12 2026 Problem 2Grade 12 2026AlgebraComplexRational
Grade 12 2026 Problem 3Grade 12 2026CombinatoricsGraphsOptimization
Grade 12 2026 Problem 4Grade 12 2026DivisibilityNTRadicalsSeq
Grade 12 2026 Problem 5Grade 12 2026CircleGeometryPerpendicularityRight triangle
Grade 9 2026 Problem 1Grade 9 2026AlgebraPolynomials
Grade 9 2026 Problem 2Grade 9 2026AreaGeometryRight triangleTriangle
Grade 9 2026 Problem 3Grade 9 2026AlgebraSystems
Grade 9 2026 Problem 4Grade 9 2026DivisibilityNT
Grade 9 2026 Problem 5Grade 9 2026AlgebraSeq
Grade 9 2026 Problem 6Grade 9 2026DiophantineNT
Grade 9 2026 Problem 7Grade 9 2026CombinatoricsOptimizationTables
Grade 10 2026 Problem 1Grade 10 2026AlgebraInequalitiesRadicals
Grade 10 2026 Problem 2Grade 10 2026AlgebraCoordOptimizationQuadratics
Grade 10 2026 Problem 3Grade 10 2026GeometryRight triangleTriangle