Školjka
Archive
Problems
Register
NT
×
Log in
☰
Search
NT
×
Search
All sources
International Competitions
-- International Mathematical Olympiad
-- Middle European Mathematical Olympiad
Local Competitions
-- Croatian Competitions
-- -- Croatian Mathematical Olympiad
-- -- Croatian National Competitions
-- -- -- Grade 9
-- -- -- Grade 10
-- -- -- Grade 11
-- -- -- Grade 12
-- -- Croatian County-Level Competitions
-- -- -- Grade 9
-- -- -- Grade 10
-- -- -- Grade 11
-- -- -- Grade 12
-- -- Croatian School-Level Competitions
-- -- -- Grade 9
-- -- -- Grade 10
-- -- -- Grade 11
-- -- -- Grade 12
All years
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
2006
2005
2004
2003
2002
2001
2000
1999
1998
1997
1996
1995
1994
1993
1992
1991
1990
1989
1988
1987
1986
1985
1984
1983
1982
1981
1979
1978
1977
1976
1975
1974
1973
1972
1971
1970
1969
1968
1967
1966
1965
1964
1963
1962
1961
1960
1959
455 results
❏
▤
Problem
Source
Tags
Grade 10 2022 Problem 6
Grade 10 2022
Counting
NT
Optimization
Grade 10 2023 Problem 2
Grade 10 2023
Algebra
NT
Quadratics
Grade 10 2023 Problem 3
Grade 10 2023
NT
Primes
Grade 10 2023 Problem 6
Grade 10 2023
Algebra
NT
Systems
Grade 10 2024 Problem 6
Grade 10 2024
Diophantine
Divisibility
NT
Grade 10 2025 Problem 3
Grade 10 2025
Digits
NT
Grade 10 2026 Problem 4
Grade 10 2026
Algebra
NT
Quadratics
Grade 10 2026 Problem 7
Grade 10 2026
NT
Rational
Grade 10 2015 Problem 3
Grade 10 2015
Diophantine
NT
Powers
Grade 10 2016 Problem 3
Grade 10 2016
Counting
Diophantine
NT
Grade 10 2017 Problem 1
Grade 10 2017
Diophantine
NT
Primes
Grade 10 2017 Problem 5
Grade 10 2017
Combinatorics
Divisibility
NT
Grade 10 2018 Problem 3
Grade 10 2018
Algebra
NT
Quadratics
Grade 10 2018 Problem 5
Grade 10 2018
Combinatorics
Divisibility
NT
Grade 10 2019 Problem 2
Grade 10 2019
Diophantine
NT
Powers
Grade 10 2020 Problem 2
Grade 10 2020
GCD
LCM
NT
Grade 10 2021 Problem 2
Grade 10 2021
NT
Primes
Grade 10 2022 Problem 3
Grade 10 2022
Divisibility
NT
Grade 10 2022 Problem 5
Grade 10 2022
Digits
Divisibility
NT
Grade 10 2023 Problem 3
Grade 10 2023
Diophantine
Exp
NT
Primes
Grade 10 2023 Problem 5
Grade 10 2023
Combinatorics
GCD
NT
Coprime
Grade 10 2024 Problem 3
Grade 10 2024
Diophantine
NT
Primes
Grade 10 2025 Problem 3
Grade 10 2025
Composite
NT
Primes
Quadratics
Grade 10 2026 Problem 2
Grade 10 2026
Divisibility
NT
Optimization
Grade 11 1992 Problem 1
Grade 11 1992
Construction
NT
Grade 11 1995 Problem 1
Grade 11 1995
Divisibility
NT
Optimization
Grade 11 1996 Problem 4
Grade 11 1996
NT
Rational
Seq
Grade 11 1997 Problem 1
Grade 11 1997
Diophantine
Divisibility
NT
Grade 11 1998 Problem 4
Grade 11 1998
Digits
Divisibility
NT
Grade 11 2000 Problem 2
Grade 11 2000
Digits
Divisibility
NT
Grade 11 2001 Problem 4
Grade 11 2001
Combinatorics
NT
Primes
Grade 11 2002 Problem 2
Grade 11 2002
NT
Powers
Sums
Grade 11 2005 Problem 1
Grade 11 2005
Eq
Factorial
NT
Grade 11 2007 Problem 1
Grade 11 2007
Divisibility
Mod
NT
Grade 11 2008 Problem 3
Grade 11 2008
Abs
NT
Optimization
Grade 11 2009 Problem 1
Grade 11 2009
Diophantine
NT
Grade 11 2010 Problem 2
Grade 11 2010
NT
Primes
Grade 11 2011 Problem 2
Grade 11 2011
Diophantine
Eq
NT
Grade 11 2011 Problem 4
Grade 11 2011
Algebra
Inequalities
NT
Grade 11 2012 Problem 3
Grade 11 2012
NT
Primes
Radicals
Grade 11 2012 Problem 4
Grade 11 2012
Divisibility
Geometry
NT
Quad
Grade 11 2012 Problem 5
Grade 11 2012
NT
Seq
Grade 11 2013 Problem 2
Grade 11 2013
Diophantine
NT
Primes
Grade 11 2014 Problem 3
Grade 11 2014
Construction
Diophantine
NT
Grade 11 2015 Problem 2
Grade 11 2015
Diophantine
NT
Primes
Grade 11 2016 Problem 2
Grade 11 2016
NT
Powers
Grade 11 2017 Problem 2
Grade 11 2017
NT
Parity
Grade 11 2018 Problem 3
Grade 11 2018
Divisibility
NT
Grade 11 2019 Problem 2
Grade 11 2019
Counting
Divisibility
NT
Grade 11 2020 Problem 1
Grade 11 2020
Algebra
Diophantine
NT
Systems
‹ Prev
1
…
5
6
7
8
9
10
Next ›