Problems solved: 173

Cubical squares	Divisibility by 4	6 Apart
Tommorow's day	Arithmetic derivative	Relatively prime with 2020
Infinite game	Sum of four	Tan-Sin
Oh-matrix	Odd polynomial	Prime powers
VNT	Odd divisors	Switchers
Many digits	Product of differences	Test
Numbers ratio	Area of triangle	Random answer
One three-digit number	Temirlan's cake	Squared fours
Exactly two roots	Convex triangle	2020 Palindromes
Friendly rooks	Triangle in hyperbola	Positive product of sums
Just sequence	Special square	Similar polynomials
C Sum	Math lesson	Money date
Tricky sequence	Sum of digits 2020	2020 digit
Polynomial without 4	Half of Octahedron	Weird equation
Angle chasing	2+1	Square multiples of 24
Expanding brackets	All such	Almost squared numbers
Cool-divisble numbers	Not your business	x[x]
Minimizing Fibb	Equilateral Triangles	335577
Again these rooks	Four on a circle	Function
Simple expression	Parking	Progressive sequence
NRD pair	U turn	Small triangular numbers
Viet said	Bingo!	Weird games
Sequenta	5th power equation	First geometry
Sum probability	Point O	Powers of 6
Solutions on the interval	Tricky polynomial	MTMTK System
More dominos	Too much	Diameter
Zero sequence	What a function	Sqaure in square
Pentagon	Circled	Tricky
5 instead of 1	Bools and cows	Novirus
Permutational Polynomial	Fill the square	Fancy meal
Nice polynomial	Also palindrome	Powered Numbers (Duplicate)
Daniyar's Friends	Lucky numbers	Flip
!Fancy cubic	Total inversion	Powered Numbers
Not fibbo	Subsets Collection	New FE
Polynomial Probability	Big set	6-sums
Concetric	Gineq	Sharingan
Cuboid	Base4	0,1,2 polynomial
Digital Cubes	Almost fixed	Odd factors
Simple sum	Fancy integral	Small triangle
Lin does shopping	Interesting functions	Obtuser
Factorial Factor	Regular Polygons	Discriminant
Just Easy Sum	Reverse Product	Binary Sum
Sequence	Sum of Digits	Maximum of Minimum
Lin's Octagon	Friendly Team	Five Primes
Number Coloring	Rational Irrational	Fractions
Rational Polynomial	Triangle in Hexagon	Product of areas
Sum of Squares	Quadratic	Lin the Racoon's Debut
Cube Cube Square	Hold me	Simple Altai
Max Area	Lin's Numbers	Flights
New Cake	Triangle and Square	Pencils
Lin Jumper	Friends Playing	MathForces Store
ADAD	ADAD (Duplicate)	Poly
Not constant	Seven eleven	Smallest degree
Revolution	Random numbers	Negative roots
Chords	Irreducible Fractions	Quadratic Sets
Magic Ruler	Smallest fraction	Soccer Game
Unordered triplet	Probability computer	Four equal angles
Integer sequence	Uneven numbers

Games

Under construction