Problems - Školjka

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Problem	Source	Tags
Grade 9 2013 Problem 2	Grade 9 2013	Diophantine NT
Grade 9 2013 Problem 3	Grade 9 2013	Geometry Inequalities Right triangle
Grade 9 2013 Problem 4	Grade 9 2013	Area Geometry Polygon
Grade 9 2013 Problem 5	Grade 9 2013	Combinatorics Optimization
Grade 9 2014 Problem 1	Grade 9 2014	Algebra Divisibility Mod Polynomials
Grade 9 2014 Problem 2	Grade 9 2014	Counting Divisibility NT
Grade 9 2014 Problem 3	Grade 9 2014	Circle Geometry Lengths Perpendicularity
Grade 9 2014 Problem 4	Grade 9 2014	Abs Algebra Eq Seq
Grade 9 2014 Problem 5	Grade 9 2014	Combinatorics Games Optimization
Grade 9 2015 Problem 1	Grade 9 2015	Algebra Systems
Grade 9 2015 Problem 2	Grade 9 2015	Divisibility Mod NT
Grade 9 2015 Problem 3	Grade 9 2015	Algebra Inequalities
Grade 9 2015 Problem 4	Grade 9 2015	Algebra NT
Grade 9 2015 Problem 5	Grade 9 2015	Circle Collinear Geometry
Grade 9 2016 Problem 1	Grade 9 2016	Algebra Sums
Grade 9 2016 Problem 2	Grade 9 2016	Circle Geometry Lengths
Grade 9 2016 Problem 3	Grade 9 2016	Algebra Systems
Grade 9 2016 Problem 4	Grade 9 2016	Algebra NT
Grade 9 2016 Problem 5	Grade 9 2016	Coloring Combinatorics Counting
Grade 9 2017 Problem 1	Grade 9 2017	Algebra Digits Eq NT
Grade 9 2017 Problem 2	Grade 9 2017	Construction NT Parity
Grade 9 2017 Problem 3	Grade 9 2017	Algebra Inequalities Optimization
Grade 9 2017 Problem 4	Grade 9 2017	Circumcircle Collinear Geometry Triangle
Grade 9 2017 Problem 5	Grade 9 2017	Board Coloring Combinatorics
Grade 9 2018 Problem 1	Grade 9 2018	Algebra Systems
Grade 9 2018 Problem 2	Grade 9 2018	Coord Geometry Right triangle
Grade 9 2018 Problem 3	Grade 9 2018	NT Primes
Grade 9 2018 Problem 4	Grade 9 2018	Angles Geometry Triangle
Grade 9 2018 Problem 5	Grade 9 2018	Combinatorics Optimization
Grade 9 2019 Problem 1	Grade 9 2019	Algebra Eq
Grade 9 2019 Problem 2	Grade 9 2019	Geometry Incircle NT Right triangle Triangle
Grade 9 2019 Problem 3	Grade 9 2019	Algebra Inequalities
Grade 9 2019 Problem 4	Grade 9 2019	Combinatorics NT
Grade 9 2019 Problem 5	Grade 9 2019	Angles Geometry Isosceles Perpendicularity Triangle
Grade 9 2020 Problem 1	Grade 9 2020	Abs Algebra Optimization
Grade 9 2020 Problem 2	Grade 9 2020	Algebra Diophantine NT
Grade 9 2020 Problem 3	Grade 9 2020	Angles Geometry Incircle Orthocenter Triangle
Grade 9 2020 Problem 4	Grade 9 2020	Algebra Inequalities Optimization
Grade 9 2020 Problem 5	Grade 9 2020	Board Coloring Combinatorics Tiling
Grade 9 2021 Problem 1	Grade 9 2021	Algebra Systems
Grade 9 2021 Problem 2	Grade 9 2021	Diophantine Mod NT
Grade 9 2021 Problem 3	Grade 9 2021	Angles Geometry Trapezoid
Grade 9 2021 Problem 4	Grade 9 2021	Abs Algebra Inequalities Optimization
Grade 9 2021 Problem 5	Grade 9 2021	Combinatorics Counting
Grade 9 2022 Problem 1	Grade 9 2022	Algebra Systems
Grade 9 2022 Problem 2	Grade 9 2022	Abs Algebra Eq
Grade 9 2022 Problem 3	Grade 9 2022	Angles Geometry Isosceles Similarity Triangle
Grade 9 2022 Problem 4	Grade 9 2022	Diophantine NT Powers
Grade 9 2022 Problem 5	Grade 9 2022	Combinatorics Graphs Optimization Polygon
Grade 9 2023 Problem 1	Grade 9 2023	Diophantine NT Primes