Total inversion 
500 
32 
Combinatorics,
Geometry

Lin's Game 
400 
9 
Combinatorics,
Games

Probability computer 
300 
42 
Combinatorics

Simple Altai 
400 
23 
NumberTheory

Test 
100 
957 

Ohmatrix 
300 
153 
Algebra,
LinearAlgebra,
Matrices

2020 digit 
200 
550 
Algebra,
Digits

Cyclic Areas 
300 
29 
Geometry,
Areas

Product of differences 
300 
131 
Algebra,
Inequalities

Sum of four 
100 
466 
Combinatorics,
Digits

Special square 
500 
56 
NumberTheory,
Squares

Viet said 
500 
112 
NumberTheory

Lin Jumper 
500 
15 
Combinatorics

Regular Polygons 
200 
53 
Geometry,
Combinatorics

Monochromatics 
400 
7 
Combinatorics,
Graphs

Positive product of sums 
300 
77 
Algebra,
Equations,
NumberTheory

Half Integers 
500 
2 
Combinatorics,
Geometry

Relatively prime with 2020 
200 
257 
NumberTheory,
PrimeNumbers

Lin the Racoon's Debut 
600 
18 
Combinatorics,
Raccoon

Odd divisors 
300 
95 
NumberTheory,
Divisors

Convex triangle 
400 
39 
Geometry,
Combinatorics

C Sum 
300 
128 
Algebra,
Combinatorics,
Formulas

Powers of 6 
500 
41 
Numbertheory,
Equations

5th power equation 
500 
63 
Algebra,
Equations

Polynomial without 4 
400 
44 
Algebra,
Polynomials

Nice Integer 
400 
5 
NumberTheory,
Algebra,
Polynomials

All such 
400 
69 
NumberTheory,
Equations

Divisibility by 4 
200 
245 
NumberTheory,
Digits

Tricky sequence 
500 
30 
NumberTheory,
Algebra,
Sequences

Similar polynomials 
500 
54 
Algebra,
Polynomials

P1 
300 
0 

Triangle in hyperbola 
400 
63 
Algebra,
Geometry,
Coordinates

335577 
500 
36 
NumberTheory,
Powers

Many digits 
400 
112 
Algebra

x[x] 
400 
63 
NumberTheory,
FloorFunction

Money date 
100 
351 
Combinatorics,
Probabilities

First geometry 
400 
63 
Geometry,
Circles,
Tangents

Excirlce 
400 
3 
Geometry

2020 Palindromes 
100 
411 
Combinatorics,
Palindromes

2+1 
200 
273 
Algebra,
Arithmetics

Novirus 
300 
83 
Combinatorics,
Graphs

Progressive sequence 
500 
18 
Algebra,
NumberTheory,
Sequences

Naruto cubed 
300 
0 

These Triangles 
300 
22 
Geometry,
Combinatorics

!Fancy polygon 
400 
38 
Geometry,
3D

Binary polindromes 
300 
8 

Air MF 
500 
6 
Combinatorics

Good Order 
600 
3 
Algebra,
NumberTheory

Daniyar's Friends 
300 
28 

Right Square 
300 
0 

What a function 
400 
38 
Algebra,
Functions

Tricky polynomial 
600 
48 
Algebra,
Polynomials,
ComplexNumbers

Lin's Numbers 
400 
33 
NumberTheory,
Algebra

Odd factors 
500 
27 

Almost squared numbers 
300 
49 
NumberTheory

Bingo! 
200 
165 
Combinatorics,
Probabilities

Lin does shopping 
200 
30 
Algebra,
NumberTheory

Hold me 
500 
21 
Algebra

Just sequence 
300 
157 
Algebra,
Sequences

Interesting permutations 
600 
6 
NumberTheory

P5 
300 
0 

TanSin 
500 
39 
Geometry,
Trigonometry

Almost fixed 
400 
14 
Combinatorics,
Algebra

Friendly rooks 
200 
174 
Combinatorics,
Chess

Exactly two roots 
400 
51 
NumberTheory,
Equations

Weird games 
500 
20 
Combinatorics

Prime powers 
400 
38 

Sqaure in square 
600 
39 
Geometry,
Squares

Ordered papers 
300 
34 
Combinatorics

Orthocenter 
600 
12 
Geometry,
Circles,
Tangents

Bools and cows 
200 
173 
Random,
Combinatorics

Zero sequence 
200 
77 
Algebra,
Sequences

Arithmetic derivative 
500 
43 
NumberTheory,
Functions

NRD pair 
200 
100 
NumberTheory,
PrimeNumbers

Tricky 
400 
61 
NumberTheory

Squared fours 
200 
213 
NumberTheory,
Algebra

Switchers 
400 
44 
Combinatorics,
Sets

Nice polynomial 
700 
7 
Algebra

Fancy meal 
300 
76 

One threedigit number 
200 
271 
Algebra,
Inequalities

MTMTK System 
400 
21 
Algebra,
Equations

Prime Sets 
500 
8 
Combinatorics,
NumberTheory

Angle chasing 
300 
136 
Geometry,
AngleChasing

Concetric 
200 
70 
Geometry

More dominos 
400 
31 
Combinatorics

Weird equation 
200 
211 
Algebra,
Polynomials

VNT 
500 
99 
NumberTheory,
LTE

!Fancy grid 
700 
9 
Combinatorics,
Graphs

Friendly Team 
400 
12 
Combinatorics

Fancy point 
500 
11 
Geometry

Permutational Polynomial 
500 
33 
Algebra

Magic Ruler 
500 
7 
Geometry,
Combinatorics

Cubical squares 
100 
663 
Algebra,
Exponents

Powered Numbers (Duplicate) 
300 
52 
Algebra,
NumberTheory

Friends Playing 
600 
18 
Combinatorics

Equilateral Triangles 
200 
223 
Combinatorics,
Grids

Concatenate 
500 
15 
NumberTheory

Tommorow's day 
100 
689 
Algebra,
Digits

ADAD (Duplicate) 
400 
40 
Geometry,
Circles

Circled 
700 
13 
Geometry,
Combinatorics

Quadratic Sets 
400 
9 
Combinatorics,
Sets,
Algebra

Sequenta 
300 
70 
Algebra,
Sequences

U turn 
200 
152 
Algebra,
NumberTheory,
Digits

Max Area 
300 
40 
Geometry

Numbers ratio 
100 
634 
Algebra,
Arithmetics

Subsets Collection 
600 
27 
Combinatorics,
Sets

Four equal angles 
200 
81 
Geometry

Semiperimeter 
200 
42 
Geometry

New Cake 
400 
29 
Geometry

Sum of Squares 
500 
24 
Geometry

Fractions 
300 
121 
Algebra

Digital Cubes 
100 
106 
Algebra,
Digits

Rational Irrational 
300 
34 
Algebra,
NumberTheory

Parking 
300 
191 
Combinatorics

Simple expression 
300 
85 
Algebra,
Combinatorics

Area of triangle 
200 
212 
Geometry,
Squares,
Areas

Four on a circle 
400 
43 
Geometry,
Circles

Base4 
300 
33 
NumberTheory

Sharp inequality 
500 
10 
Algebra,
Inequalities

Powered Numbers 
300 
51 
Algebra,
NumberTheory

Small triangular numbers 
200 
138 
Algebra,
NumberTheory

Rational Polynomial 
400 
25 
Algebra,
Polynomials

Interesting functions 
600 
12 
NumberTheory

Difference of squares 
200 
58 
Combinatorics,
NumberTheory

Unfair Game 
400 
31 
Combinatorics

Triangle in Hexagon 
200 
58 
Geometry,
Probabilities

Gineq 
300 
54 
Geometry

Flights 
500 
9 
Combinatorics,
Graphs

Irreducible Fractions 
200 
89 
NumberTheory

Expanding brackets 
300 
152 
Algebra,
Polynomials

Random answer 
100 
492 
Random

Random numbers 
400 
18 
Algebra,
Combinatorics

0,1,2 polynomial 
400 
21 
Combinatorics,
Algebra

Diameter 
400 
54 
Geometry,
Perpendiculars

Square multiples of 24 
200 
236 

Smallest fraction 
300 
30 
Algebra,
NumberTheory

Divisible sets 
300 
6 
Combinatorics

Solutions on the interval 
300 
60 
Algebra,
Equations

Where is my husband 
500 
23 
Combinatorics,
TrueFalse

Polynomial Probability 
600 
27 

Zeros and Ones 
300 
26 
Combinatorics

Uneven numbers 
100 
164 
NumberTheory

Fill the square 
400 
16 
Combinatorics,
Algebra

Pencils 
400 
7 
Combinatorics

Sum probability 
300 
84 
Combinatorics,
Algebra,
Probablilities

Simple sum 
300 
31 
Algebra,
Sums

Sharingan 
500 
11 
Geometry

Just Easy Sum 
100 
165 
Algebra

Lin's Octagon 
300 
45 
Combinatorics

Independence 
300 
10 
Combinatorics,
Probabilities

Point O 
400 
98 
Geometry

Sum of digits 2020 
200 
155 
NumberTheory,
Digits

Love Triangle 
400 
6 
Combinatorics

Not fibbo 
300 
57 
Algebra,
Sequences

Integer sequence 
400 
13 
Algebra,
Sequences

6sums 
100 
134 
Algebra

Number Coloring 
400 
23 
Combinatorics

Cooldivisble numbers 
300 
69 
NumberTheory,
Digits

!Fancy cubic 
300 
68 
Algebra,
NumberTheory

Binary Sum 
500 
27 
NumberTheory,
Algebra

Temirlan's cake 
100 
785 
Algebra,
Arithmetics

Math lesson 
400 
42 
NumberTheory,
Combinatorics

Fancy limit 
400 
31 
Algebra,
Sequences

Cube Cube Square 
300 
28 
Algebra,
NumberTheory

Smallest degree 
400 
11 
Algebra,
Polynomials

Soccer Game 
500 
11 
Combinatorics

Odd polynomial 
400 
103 
Algebra,
Polynomials

Five Primes 
100 
161 
NumberTheory

ADAD 
400 
37 
Geometry,
Circles

Again these rooks 
600 
58 
Combinatorics,
Boards

Rooks 
600 
16 
Combinatorics

Mathrix 
600 
5 
Algebra,
NumberTheory,
Matrices

Obtuser 
400 
19 
Combinatorics,
Geometry

Small triangle 
600 
15 
Geometry,
Areas

Seven eleven 
200 
64 
Algebra

Factorial Factor 
200 
65 
NumberTheory,
Combinatorics

Cemicirlces 
300 
21 
Geometry,
Areas

Infinite game 
500 
42 
Combinatorics,
Games

Rotating Hexagon 
600 
3 
Geometry,
Combinatorics

New FE 
300 
52 
FunctionalEquations

Not constant 
300 
28 
Algebra,
NumberTheory

5 instead of 1 
200 
186 

Revolution 
300 
23 
Combinatorics

Lucky numbers 
100 
163 
Digits,
Algebra

Big set 
400 
15 
Combinatorics

Teleporting button 
300 
19 
Combinatorics,
Probabilities

Pentagon 
500 
17 
Geometry,
Combinatorics,
Pentagons

Cuboid 
300 
28 
NumberTheory

Function 
300 
205 
Algebra,
FunctionalEquations

Sum of Digits 
200 
75 
NumberTheory,
Digits

Reverse Product 
400 
36 
Combinatorics,
NumberTheory

Sequence 
300 
46 
NumberTheory

Hexagonial 
300 
14 
Geometry,
Hexagons

!Fancy FE 
500 
9 
Algebra,
Polynomials

!Fancy sequence 
600 
8 
Combinatorics,
NumberTheory

MathForces Store 
500 
32 
Combinatorics

Maximum of Minimum 
500 
27 
Algebra,
Inequalities

Cyclic Q 
600 
16 
Geometry

School Clubs 
500 
3 
Combinatorics

Smallest number 
600 
244 
Algebra

Flip 
200 
65 
Algebra,
NumberTheory,
Digits

Minimizing Fibb 
400 
121 
Algebra,
Sequences

Chords 
300 
12 
Geometry,
Circles

Unordered triplet 
300 
57 
Algebra,
NumberTheory

Quadratic 
300 
51 
Algebra,
NumberTheory

Not your business 
200 
193 
Geometry,
Tangents

Administrative function 
900 
9 

Negative roots 
300 
39 
Algebra

Poly 
600 
10 
Algebra

Fancy integral 
700 
32 
Algebra,
Sums,
Integrals

Discriminant 
400 
35 
Algebra,
Polynomials

Too much 
600 
27 
Algebra,
Equations

Triangle and Square 
200 
68 
Geometry

Also palindrome 
400 
46 
Digits

Fancy polynomial 
800 
20 
Algebra,
Polynomials

D Flags 
200 
74 
WebSearch

Product of areas 
300 
42 
Geometry

6 Apart 
500 
89 
Geometry,
3D

Inverse Sum in Triangle 
500 
11 
Geometry

Functional Eq 
700 
16 
Algebra,
FunctionalEquations

Checkboard 
600 
3 
Combinatorics

Equiangular Hexagon 
400 
11 

Half of Octahedron 
400 
123 
Combinatorics,
Graphs
