D Flags 
200 
69 
WebSearch

2020 digit 
200 
403 
Algebra,
Digits

Half Integers 
500 
2 
Combinatorics,
Geometry

Ohmatrix 
300 
121 
Algebra,
LinearAlgebra,
Matrices

Cubical squares 
100 
494 
Algebra,
Exponents

Test 
100 
618 

Fractions 
300 
74 
Algebra

Sum of four 
100 
314 
Combinatorics,
Digits

Viet said 
500 
91 
NumberTheory

Special square 
500 
51 
NumberTheory,
Squares

Numbers ratio 
100 
515 
Algebra,
Arithmetics

Product of differences 
300 
86 
Algebra,
Inequalities

Ordered papers 
300 
26 
Combinatorics

Divisible sets 
300 
4 
Combinatorics

Triangle in hyperbola 
400 
59 
Algebra,
Geometry,
Coordinates

Positive product of sums 
300 
58 
Algebra,
Equations,
NumberTheory

Convex triangle 
400 
37 
Geometry,
Combinatorics

Zeros and Ones 
300 
17 
Combinatorics

Integer sequence 
400 
6 
Algebra,
Sequences

Powers of 6 
500 
36 
Numbertheory,
Equations

Relatively prime with 2020 
200 
191 
NumberTheory,
PrimeNumbers

Squared fours 
200 
157 
NumberTheory,
Algebra

Divisibility by 4 
200 
177 
NumberTheory,
Digits

C Sum 
300 
95 
Algebra,
Combinatorics,
Formulas

2020 Palindromes 
100 
291 
Combinatorics,
Palindromes

Odd divisors 
300 
76 
NumberTheory,
Divisors

Quadratic Sets 
400 
4 
Combinatorics,
Sets,
Algebra

Diameter 
400 
50 
Geometry,
Perpendiculars

Polynomial without 4 
400 
40 
Algebra,
Polynomials

Tricky sequence 
500 
28 
NumberTheory,
Algebra,
Sequences

Friendly rooks 
200 
135 
Combinatorics,
Chess

All such 
400 
58 
NumberTheory,
Equations

Similar polynomials 
500 
47 
Algebra,
Polynomials

x[x] 
400 
46 
NumberTheory,
FloorFunction

Weird equation 
200 
181 
Algebra,
Polynomials

First geometry 
400 
55 
Geometry,
Circles,
Tangents

Tricky polynomial 
600 
41 
Algebra,
Polynomials,
ComplexNumbers

Area of triangle 
200 
173 
Geometry,
Squares,
Areas

Many digits 
400 
94 
Algebra

335577 
500 
32 
NumberTheory,
Powers

Independence 
300 
10 
Combinatorics,
Probabilities

Rooks 
600 
14 
Combinatorics

One threedigit number 
200 
227 
Algebra,
Inequalities

Friends Playing 
600 
16 
Combinatorics

Sum of digits 2020 
200 
133 
NumberTheory,
Digits

Progressive sequence 
500 
18 
Algebra,
NumberTheory,
Sequences

Angle chasing 
300 
122 
Geometry,
AngleChasing

Lin's Numbers 
400 
28 
NumberTheory,
Algebra

Hexagonial 
300 
8 
Geometry,
Hexagons

Lin the Racoon's Debut 
600 
16 
Combinatorics,
Raccoon

What a function 
400 
37 
Algebra,
Functions

Tricky 
400 
59 
NumberTheory

Almost squared numbers 
300 
40 
NumberTheory

Concetric 
200 
49 
Geometry

Odd factors 
500 
26 

Excirlce 
400 
2 
Geometry

School Clubs 
500 
3 
Combinatorics

Also palindrome 
400 
41 
Digits

Reverse Product 
400 
33 
Combinatorics,
NumberTheory

Just sequence 
300 
136 
Algebra,
Sequences

Function 
300 
183 
Algebra,
FunctionalEquations

Prime powers 
400 
37 

Air MF 
500 
5 
Combinatorics

Minimizing Fibb 
400 
112 
Algebra,
Sequences

Inverse Sum in Triangle 
500 
10 
Geometry

Tommorow's day 
100 
579 
Algebra,
Digits

TanSin 
500 
37 
Geometry,
Trigonometry

Exactly two roots 
400 
43 
NumberTheory,
Equations

NRD pair 
200 
85 
NumberTheory,
PrimeNumbers

Sqaure in square 
600 
35 
Geometry,
Squares

Orthocenter 
600 
12 
Geometry,
Circles,
Tangents

Functional Eq 
700 
15 
Algebra,
FunctionalEquations

Revolution 
300 
16 
Combinatorics

Square multiples of 24 
200 
205 

Simple expression 
300 
75 
Algebra,
Combinatorics

Zero sequence 
200 
63 
Algebra,
Sequences

6 Apart 
500 
85 
Geometry,
3D

Arithmetic derivative 
500 
39 
NumberTheory,
Functions

Unfair Game 
400 
29 
Combinatorics

U turn 
200 
139 
Algebra,
NumberTheory,
Digits

Fancy meal 
300 
71 

VNT 
500 
96 
NumberTheory,
LTE

Circled 
700 
12 
Geometry,
Combinatorics

Interesting functions 
600 
12 
NumberTheory

MTMTK System 
400 
19 
Algebra,
Equations

Irreducible Fractions 
200 
49 
NumberTheory

Switchers 
400 
42 
Combinatorics,
Sets

Sequenta 
300 
60 
Algebra,
Sequences

Fancy point 
500 
11 
Geometry

New FE 
300 
47 
FunctionalEquations

More dominos 
400 
28 
Combinatorics

Simple sum 
300 
26 
Algebra,
Sums

Gineq 
300 
45 
Geometry

Money date 
100 
266 
Combinatorics,
Probabilities

Concatenate 
500 
14 
NumberTheory

Equilateral Triangles 
200 
194 
Combinatorics,
Grids

Good Order 
600 
3 
Algebra,
NumberTheory

Random answer 
100 
387 
Random

2+1 
200 
217 
Algebra,
Arithmetics

Cooldivisble numbers 
300 
62 
NumberTheory,
Digits

Rational Irrational 
300 
28 
Algebra,
NumberTheory

Random numbers 
400 
14 
Algebra,
Combinatorics

Semiperimeter 
200 
34 
Geometry

Mathrix 
600 
2 
Algebra,
NumberTheory,
Matrices

Soccer Game 
500 
9 
Combinatorics

Half of Octahedron 
400 
123 
Combinatorics,
Graphs

Powered Numbers (Duplicate) 
300 
49 
Algebra,
NumberTheory

Friendly Team 
400 
10 
Combinatorics

Prime Sets 
500 
8 
Combinatorics,
NumberTheory

Sum of Digits 
200 
56 
NumberTheory,
Digits

Digital Cubes 
100 
55 
Algebra,
Digits

Small triangular numbers 
200 
123 
Algebra,
NumberTheory

ADAD (Duplicate) 
400 
39 
Geometry,
Circles

MathForces Store 
500 
32 
Combinatorics

Max Area 
300 
33 
Geometry

Expanding brackets 
300 
139 
Algebra,
Polynomials

Lucky numbers 
100 
101 
Digits,
Algebra

Simple Altai 
400 
17 
NumberTheory

Chords 
300 
9 
Geometry,
Circles

New Cake 
400 
25 
Geometry

Math lesson 
400 
39 
NumberTheory,
Combinatorics

Parking 
300 
178 
Combinatorics

Point O 
400 
95 
Geometry

5th power equation 
500 
59 
Algebra,
Equations

Obtuser 
400 
18 
Combinatorics,
Geometry

Hold me 
500 
17 
Algebra

ADAD 
400 
37 
Geometry,
Circles

Sequence 
300 
41 
NumberTheory

Almost fixed 
400 
10 
Combinatorics,
Algebra

Subsets Collection 
600 
24 
Combinatorics,
Sets

Sum of Squares 
500 
24 
Geometry

Cuboid 
300 
26 
NumberTheory

Equiangular Hexagon 
400 
10 

Flip 
200 
56 
Algebra,
NumberTheory,
Digits

Love Triangle 
400 
4 
Combinatorics

Four on a circle 
400 
43 
Geometry,
Circles

Maximum of Minimum 
500 
25 
Algebra,
Inequalities

Polynomial Probability 
600 
26 

Rational Polynomial 
400 
24 
Algebra,
Polynomials

Checkboard 
600 
3 
Combinatorics

Base4 
300 
28 
NumberTheory

Powered Numbers 
300 
50 
Algebra,
NumberTheory

Administrative function 
900 
9 

Not your business 
200 
179 
Geometry,
Tangents

0,1,2 polynomial 
400 
20 
Combinatorics,
Algebra

Lin Jumper 
500 
14 
Combinatorics

Smallest number 
600 
240 
Algebra

Odd polynomial 
400 
101 
Algebra,
Polynomials

Permutational Polynomial 
500 
30 
Algebra

Smallest degree 
400 
5 
Algebra,
Polynomials

Not fibbo 
300 
46 
Algebra,
Sequences

!Fancy FE 
500 
9 
Algebra,
Polynomials

Temirlan's cake 
100 
655 
Algebra,
Arithmetics

Fill the square 
400 
16 
Combinatorics,
Algebra

Rotating Hexagon 
600 
2 
Geometry,
Combinatorics

Sum probability 
300 
72 
Combinatorics,
Algebra,
Probablilities

Lin does shopping 
200 
23 
Algebra,
NumberTheory

5 instead of 1 
200 
169 

Just Easy Sum 
100 
86 
Algebra

!Fancy cubic 
300 
64 
Algebra,
NumberTheory

Discriminant 
400 
29 
Algebra,
Polynomials

Factorial Factor 
200 
48 
NumberTheory,
Combinatorics

6sums 
100 
71 
Algebra

Triangle and Square 
200 
46 
Geometry

Weird games 
500 
20 
Combinatorics

Cyclic Q 
600 
13 
Geometry

Binary Sum 
500 
22 
NumberTheory,
Algebra

Again these rooks 
600 
55 
Combinatorics,
Boards

Bingo! 
200 
124 
Combinatorics,
Probabilities

Sharp inequality 
500 
9 
Algebra,
Inequalities

Triangle in Hexagon 
200 
45 
Geometry,
Probabilities

Cemicirlces 
300 
11 
Geometry,
Areas

Cube Cube Square 
300 
24 
Algebra,
NumberTheory

Big set 
400 
15 
Combinatorics

Five Primes 
100 
81 
NumberTheory

Negative roots 
300 
21 
Algebra

Solutions on the interval 
300 
53 
Algebra,
Equations

Not constant 
300 
22 
Algebra,
NumberTheory

Regular Polygons 
200 
44 
Geometry,
Combinatorics

Daniyar's Friends 
300 
27 

Pencils 
400 
7 
Combinatorics

Poly 
600 
9 
Algebra

!Fancy grid 
700 
8 
Combinatorics,
Graphs

Where is my husband 
500 
23 
Combinatorics,
TrueFalse

Infinite game 
500 
38 
Combinatorics,
Games

Quadratic 
300 
40 
Algebra,
NumberTheory

!Fancy polygon 
400 
38 
Geometry,
3D

Lin's Octagon 
300 
39 
Combinatorics

Cyclic Areas 
300 
20 
Geometry,
Areas

!Fancy sequence 
600 
8 
Combinatorics,
NumberTheory

Nice polynomial 
700 
7 
Algebra

Pentagon 
500 
17 
Geometry,
Combinatorics,
Pentagons

Product of areas 
300 
38 
Geometry

Monochromatics 
400 
5 
Combinatorics,
Graphs

Total inversion 
500 
31 
Combinatorics,
Geometry

Fancy limit 
400 
31 
Algebra,
Sequences

Lin's Game 
400 
9 
Combinatorics,
Games

Small triangle 
600 
13 
Geometry,
Areas

Nice Integer 
400 
5 
NumberTheory,
Algebra,
Polynomials

Number Coloring 
400 
21 
Combinatorics

Novirus 
300 
78 
Combinatorics,
Graphs

Too much 
600 
25 
Algebra,
Equations

Sharingan 
500 
10 
Geometry

Fancy integral 
700 
30 
Algebra,
Sums,
Integrals

Seven eleven 
200 
42 
Algebra

Bools and cows 
200 
146 
Random,
Combinatorics

Fancy polynomial 
800 
20 
Algebra,
Polynomials

Flights 
500 
9 
Combinatorics,
Graphs
