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Puzzle of the Week
Simple CPU Emulation 1
by SunMan
Simple CPU Emulation 1
XP
+50 XP
Completed by 124 CodinGamers
0
done
To start
The Fastest
by [CG]jupoulton
The Fastest
XP
+50 XP
Completed by 4,679 CodinGamers
0
done
The greatest number
by Magus
The greatest number
XP
+50 XP
Completed by 2,699 CodinGamers
0
done
Porcupine Fever
by Unihedron
Porcupine Fever
XP
+50 XP
Completed by 619 CodinGamers
0
done
May the Triforce be with you!
by Ninsuo
May the Triforce be with you!
XP
+50 XP
Completed by 2,411 CodinGamers
0
done
Gravity
by [CG]Maxime
Gravity
XP
+50 XP
Completed by 2,400 CodinGamers
0
done
Minimal number of swaps
by Delgan
Minimal number of swaps
XP
+50 XP
Completed by 2,130 CodinGamers
0
done
Brackets, extreme edition.
by Plopx
Brackets, extreme edition.
XP
+50 XP
Completed by 2,019 CodinGamers
0
done
Google Interview - The Two Egg Problem
by OlogN
Google Interview - The Two Egg Problem
XP
+50 XP
Completed by 1,431 CodinGamers
0
done
Sandpile addition
by TwelveOThirteen
Sandpile addition
XP
+50 XP
Completed by 1,029 CodinGamers
0
done
Rubik®
by [CG]jupoulton
Rubik®
XP
+50 XP
Completed by 1,949 CodinGamers
0
done
Bruce Lee
by mploux
Bruce Lee
XP
+50 XP
Completed by 767 CodinGamers
0
done
Magic stones
by i-d-k
Magic stones
XP
+50 XP
Completed by 1,117 CodinGamers
0
done
Simplify Selection Ranges
by xmetrix
Simplify Selection Ranges
XP
+50 XP
Completed by 1,644 CodinGamers
0
done
Sum of divisors
by nicola
Sum of divisors
XP
+50 XP
Completed by 1,512 CodinGamers
0
done
The hungry duck - part 1
by schubc
The hungry duck - part 1
XP
+50 XP
Completed by 701 CodinGamers
0
done
Game of life
by rnd495
Game of life
XP
+50 XP
Completed by 1,501 CodinGamers
0
done
Folding Paper
by VilBoub
Folding Paper
XP
+50 XP
Completed by 966 CodinGamers
0
done
Simple safecracking
by Shomz
Simple safecracking
XP
+50 XP
Completed by 1,230 CodinGamers
0
done
Cards castle
by Shoko84
Cards castle
XP
+50 XP
Completed by 935 CodinGamers
0
done
Apple tree
by input.txt
Apple tree
XP
+50 XP
Completed by 340 CodinGamers
0
done
Magic Square
by brexe
Magic Square
XP
+50 XP
Completed by 299 CodinGamers
0
done
Monday Tuesday Happy Days
by Bob
Monday Tuesday Happy Days
XP
+50 XP
Completed by 592 CodinGamers
0
done
Number of letters in a number - Binary
by btharper
Number of letters in a number - Binary
XP
+50 XP
Completed by 853 CodinGamers
0
done
Highest truncated pyramid
by TwelveOThirteen
Highest truncated pyramid
XP
+50 XP
Completed by 593 CodinGamers
0
done
Elevator
by dimp
Elevator
XP
+50 XP
Completed by 921 CodinGamers
0
done
Text alignment
by Bob
Text alignment
XP
+50 XP
Completed by 1,137 CodinGamers
0
done
Flood fill Example
by CyberLemonade
Flood fill Example
XP
+50 XP
Completed by 94 CodinGamers
0
done
These Romans are crazy!
by VilBoub
These Romans are crazy!
XP
+50 XP
Completed by 1,154 CodinGamers
0
done
Micro Assembly
by Blubbor
Micro Assembly
XP
+50 XP
Completed by 751 CodinGamers
0
done
The hungry duck - part 2
by schubc
The hungry duck - part 2
XP
+50 XP
Completed by 515 CodinGamers
0
done
Simple fraction to mixed number
by MMMAAANNN
Simple fraction to mixed number
XP
+50 XP
Completed by 894 CodinGamers
0
done
ASCII ART : Glass Stacking
by loveCoding
ASCII ART : Glass Stacking
XP
+50 XP
Completed by 937 CodinGamers
0
done
Ancestors & Descendants
by .EagleDawn.
Ancestors & Descendants
XP
+50 XP
Completed by 838 CodinGamers
0
done
The experience for creating puzzles
by BlitzProg
The experience for creating puzzles
XP
+50 XP
Completed by 759 CodinGamers
0
done
Longest Palindrome
by Coni
Longest Palindrome
XP
+50 XP
Completed by 378 CodinGamers
0
done
Format string validation
by Unihedron
Format string validation
XP
+50 XP
Completed by 106 CodinGamers
0
done
Bust speeding vehicles
by Solid
Bust speeding vehicles
XP
+50 XP
Completed by 900 CodinGamers
0
done
Kolakoski Sequence
by Orabig
Kolakoski Sequence
XP
+50 XP
Completed by 578 CodinGamers
0
done
Turing machine
by ValNykol
Turing machine
XP
+50 XP
Completed by 433 CodinGamers
0
done
Completed Mahjong Hands
by Unihedron
Completed Mahjong Hands
XP
+50 XP
Completed by 47 CodinGamers
0
done
Anagrams
by player_one
Anagrams
XP
+50 XP
Completed by 717 CodinGamers
0
done
Ascii Graph
by Merome
Ascii Graph
XP
+50 XP
Completed by 826 CodinGamers
0
done
Balanced ternary computer: encode
by BorisZ
Balanced ternary computer: encode
XP
+50 XP
Completed by 592 CodinGamers
0
done
DDCG Mapper
by Amendil
DDCG Mapper
XP
+50 XP
Completed by 805 CodinGamers
0
done
Timer for Clash of Code
by Lupilum
Timer for Clash of Code
XP
+50 XP
Completed by 487 CodinGamers
0
done
The River I.
by ng201
The River I.
XP
+50 XP
Completed by 175 CodinGamers
0
done
Hangman
by [CPC]glau
Hangman
XP
+50 XP
Completed by 522 CodinGamers
0
done
The Urinal Problem
by Har
The Urinal Problem
XP
+50 XP
Completed by 657 CodinGamers
0
done
Find the replacement
by Unihedron
Find the replacement
XP
+50 XP
Completed by 144 CodinGamers
0
done
Next car license plate ?
by VilBoub
Next car license plate ?
XP
+50 XP
Completed by 498 CodinGamers
0
done
Langton's ant
by Delgan
Langton's ant
XP
+50 XP
Completed by 545 CodinGamers
0
done
Snake encoding
by Driikolu
Snake encoding
XP
+50 XP
Completed by 665 CodinGamers
0
done
Levenshtein distance
by Steuh
Levenshtein distance
XP
+50 XP
Completed by 337 CodinGamers
0
done
7-segment display
by scrauler
7-segment display
XP
+50 XP
Completed by 654 CodinGamers
0
done
n Queens
by VilBoub
n Queens
XP
+50 XP
Completed by 345 CodinGamers
0
done
Egyptian multiplication
by MoonCoder
Egyptian multiplication
XP
+50 XP
Completed by 535 CodinGamers
0
done
Army ants
by DJ_NikJ
Army ants
XP
+50 XP
Completed by 527 CodinGamers
0
done
The max surface box
by VinceKanabo
The max surface box
XP
+50 XP
Completed by 406 CodinGamers
0
done
Elementary cellular automaton
by LauMJ
Elementary cellular automaton
XP
+50 XP
Completed by 519 CodinGamers
0
done
Monthly System
by firefliesalco
Monthly System
XP
+50 XP
Completed by 147 CodinGamers
0
done
Text formatting
by Cezariusz
Text formatting
XP
+50 XP
Completed by 132 CodinGamers
0
done
Divide the factorial
by Paradox
Divide the factorial
XP
+50 XP
Completed by 443 CodinGamers
0
done
KGood
by DJ_NikJ
KGood
XP
+50 XP
Completed by 461 CodinGamers
0
done
Jack Silver: The Casino Part1
by informatics
Jack Silver: The Casino Part1
XP
+50 XP
Completed by 479 CodinGamers
0
done
Zergling rush
by ValNykol
Zergling rush
XP
+50 XP
Completed by 381 CodinGamers
0
done
Numeral system
by Vinatorul
Numeral system
XP
+50 XP
Completed by 162 CodinGamers
0
done
Box of Cigars
by CyberLemonade
Box of Cigars
XP
+50 XP
Completed by 74 CodinGamers
0
done
Hanoi tower
by Bob
Hanoi tower
XP
+50 XP
Completed by 290 CodinGamers
0
done
Recurring Decimals
by TheNinja
Recurring Decimals
XP
+50 XP
Completed by 512 CodinGamers
0
done
Vote counting
by Amendil
Vote counting
XP
+50 XP
Completed by 532 CodinGamers
0
done
Chess cavalry
by Arglanir
Chess cavalry
XP
+50 XP
Completed by 474 CodinGamers
0
done
Nature of quadrilaterals
by nicola
Nature of quadrilaterals
XP
+50 XP
Completed by 388 CodinGamers
0
done
The Travelling Salesman Problem
by Hackerman007
The Travelling Salesman Problem
XP
+50 XP
Completed by 99 CodinGamers
0
done
Maze
by Bob
Maze
XP
+50 XP
Completed by 519 CodinGamers
0
done
Spreadsheet Labels
by Porthos3
Spreadsheet Labels
XP
+50 XP
Completed by 487 CodinGamers
0
done
Bingo!
by Yanahma
Bingo!
XP
+50 XP
Completed by 80 CodinGamers
0
done
The River II.
by ng201
The River II.
XP
+50 XP
Completed by 112 CodinGamers
0
done
Magic count of numbers
by InstouT94
Magic count of numbers
XP
+50 XP
Completed by 78 CodinGamers
0
done
Count of Primes in a number grid
by vulca
Count of Primes in a number grid
XP
+50 XP
Completed by 108 CodinGamers
0
done
CGFunge interpreter
by player_one
CGFunge interpreter
XP
+50 XP
Completed by 401 CodinGamers
0
done
Candies
by Elliot
Candies
XP
+50 XP
Completed by 446 CodinGamers
0
done
Plight Of The Fellowship Of The Ring
by CyberLemonade
Plight Of The Fellowship Of The Ring
XP
+50 XP
Completed by 72 CodinGamers
0
done
Brackets, Enhanced Edition
by JBM
Brackets, Enhanced Edition
XP
+50 XP
Completed by 304 CodinGamers
0
done
Inertia ride
by Keelhaul
Inertia ride
XP
+50 XP
Completed by 296 CodinGamers
0
done
1010(1)
by Syneil
1010(1)
XP
+50 XP
Completed by 117 CodinGamers
0
done
Polydivisible number
by dwarfie
Polydivisible number
XP
+50 XP
Completed by 56 CodinGamers
0
done
Paper-folding curve
by java_coffee_cup
Paper-folding curve
XP
+50 XP
Completed by 95 CodinGamers
0
done
Mini sudoku solver
by nicola
Mini sudoku solver
XP
+50 XP
Completed by 408 CodinGamers
0
done
Drawing Polygons
by PauloVilela
Drawing Polygons
XP
+50 XP
Completed by 302 CodinGamers
0
done
Mystery sums
by Neonox
Mystery sums
XP
+50 XP
Completed by 394 CodinGamers
0
done
The Holy Grail
by Blem
The Holy Grail
XP
+50 XP
Completed by 370 CodinGamers
0
done
To Sky's Edge
by Keelhaul
To Sky's Edge
XP
+50 XP
Completed by 243 CodinGamers
0
done
Skylines
by Heino
Skylines
XP
+50 XP
Completed by 186 CodinGamers
0
done
The Grand Festival - I
by CyberLemonade
The Grand Festival - I
XP
+50 XP
Completed by 54 CodinGamers
0
done
Queneau Numbers
by VonRickroll
Queneau Numbers
XP
+50 XP
Completed by 307 CodinGamers
0
done
Vortex
by MadKnight
Vortex
XP
+50 XP
Completed by 301 CodinGamers
0
done
Boggle
by Bob
Boggle
XP
+50 XP
Completed by 361 CodinGamers
0
done
Dominoes solver
by VilBoub
Dominoes solver
XP
+50 XP
Completed by 28 CodinGamers
0
done
How time flies
by Doomer3D
How time flies
XP
+50 XP
Completed by 275 CodinGamers
0
done
Simple Awalé
by seb
Simple Awalé
XP
+50 XP
Completed by 62 CodinGamers
0
done
OneWay City
by anst
OneWay City
XP
+50 XP
Completed by 267 CodinGamers
0
done
Minimax Simple Example
by Wildcat
Minimax Simple Example
XP
+50 XP
Completed by 49 CodinGamers
0
done
Quarternion Multiplication
by TheNinja
Quarternion Multiplication
XP
+50 XP
Completed by 286 CodinGamers
0
done
Rugby score
by Bob
Rugby score
XP
+50 XP
Completed by 273 CodinGamers
0
done
XML MDF-2016
by NikoNikoSuru
XML MDF-2016
XP
+50 XP
Completed by 309 CodinGamers
0
done
Laser and mirrors
by Arglanir
Laser and mirrors
XP
+50 XP
Completed by 227 CodinGamers
0
done
Morellet’s random lines
by nicola
Morellet’s random lines
XP
+50 XP
Completed by 41 CodinGamers
0
done
Order of Oopserations!
by Stashio
Order of Oopserations!
XP
+50 XP
Completed by 115 CodinGamers
0
done
The Grand Festival - II
by CyberLemonade
The Grand Festival - II
XP
+50 XP
Completed by 39 CodinGamers
0
done
Organic Compounds 🔬
by CyberLemonade
Organic Compounds 🔬
XP
+50 XP
Completed by 59 CodinGamers
0
done
Hidden word
by nicola
Hidden word
XP
+50 XP
Completed by 140 CodinGamers
0
done
The Highest Building
by Konrad_Wer
The Highest Building
XP
+50 XP
Completed by 233 CodinGamers
0
done
Fractal Carpet
by Sethius
Fractal Carpet
XP
+50 XP
Completed by 248 CodinGamers
0
done
CGS minifier
by Amendil
CGS minifier
XP
+50 XP
Completed by 300 CodinGamers
0
done
What's so complex about Mandelbrot?
by asteriskman
What's so complex about Mandelbrot?
XP
+50 XP
Completed by 69 CodinGamers
0
done
The barnyard
by nicola
The barnyard
XP
+50 XP
Completed by 274 CodinGamers
0
done
Expand the polynomial
by nicola
Expand the polynomial
XP
+50 XP
Completed by 38 CodinGamers
0
done
The two piles difference
by Steuh
The two piles difference
XP
+50 XP
Completed by 122 CodinGamers
0
done
Minimax exercise
by aCat
Minimax exercise
XP
+50 XP
Completed by 69 CodinGamers
0
done
A-star exercise
by aCat
A-star exercise
XP
+50 XP
Completed by 71 CodinGamers
0
done
Reverse Polish Notation
by nicola
Reverse Polish Notation
XP
+50 XP
Completed by 265 CodinGamers
0
done
Unfolding paper
by input.txt
Unfolding paper
XP
+50 XP
Completed by 57 CodinGamers
0
done
TXT2HTML
by Merome
TXT2HTML
XP
+50 XP
Completed by 248 CodinGamers
0
done
Chess moves on FEN position
by scrauler
Chess moves on FEN position
XP
+50 XP
Completed by 199 CodinGamers
0
done
Carmichael numbers
by nicola
Carmichael numbers
XP
+50 XP
Completed by 189 CodinGamers
0
done
Gravity Tumbler
by JBM
Gravity Tumbler
XP
+50 XP
Completed by 166 CodinGamers
0
done
Alternative vote
by [CG]Maxime
Alternative vote
XP
+50 XP
Completed by 244 CodinGamers
0
done
Unflood The World
by input.txt
Unflood The World
XP
+50 XP
Completed by 178 CodinGamers
0
done
Hill Notation and Hill Order
by btharper
Hill Notation and Hill Order
XP
+50 XP
Completed by 176 CodinGamers
0
done
Dungeon Designer
by Arglanir
Dungeon Designer
XP
+50 XP
Completed by 42 CodinGamers
0
done
Disks intersection
by Amendil
Disks intersection
XP
+50 XP
Completed by 212 CodinGamers
0
done
Connect four
by Bob
Connect four
XP
+50 XP
Completed by 218 CodinGamers
0
done
Execution Circle
by Skreamly
Execution Circle
XP
+50 XP
Completed by 135 CodinGamers
0
done
Minesweeper
by VilBoub
Minesweeper
XP
+50 XP
Completed by 205 CodinGamers
0
done
Factorial vs Exponential
by ValNykol
Factorial vs Exponential
XP
+50 XP
Completed by 147 CodinGamers
0
done
Self-driving car testing
by Merome
Self-driving car testing
XP
+50 XP
Completed by 139 CodinGamers
0
done
Musical Intervals
by JBM
Musical Intervals
XP
+50 XP
Completed by 29 CodinGamers
0
done
Staircases
by sampriti
Staircases
XP
+50 XP
Completed by 208 CodinGamers
0
done
Horse-racing Hyperduals
by JBM
Horse-racing Hyperduals
XP
+50 XP
Completed by 138 CodinGamers
0
done
Bulls and Cows
by player_one
Bulls and Cows
XP
+50 XP
Completed by 196 CodinGamers
0
done
Hit the road
by mouton5000
Hit the road
XP
+50 XP
Completed by 119 CodinGamers
0
done
Bulk Email Generator
by JBM
Bulk Email Generator
XP
+50 XP
Completed by 135 CodinGamers
0
done
Texas Holdem
by AdamHill
Texas Holdem
XP
+50 XP
Completed by 146 CodinGamers
0
done
Max Rect
by java_coffee_cup
Max Rect
XP
+50 XP
Completed by 45 CodinGamers
0
done
2048 scores
by CyberLemonade
2048 scores
XP
+50 XP
Completed by 33 CodinGamers
0
done
Dominoes Path
by SharkyRS
Dominoes Path
XP
+50 XP
Completed by 186 CodinGamers
0
done
Sliding puzzle
by raphi
Sliding puzzle
XP
+50 XP
Completed by 145 CodinGamers
0
done
The Beautiful sequence
by dogther
The Beautiful sequence
XP
+50 XP
Completed by 132 CodinGamers
0
done
The Ultimate Test
by SamSi
The Ultimate Test
XP
+50 XP
Completed by 173 CodinGamers
0
done
Heart of the City
by SamSi
Heart of the City
XP
+50 XP
Completed by 140 CodinGamers
0
done
2.5D maze
by nicola
2.5D maze
XP
+50 XP
Completed by 163 CodinGamers
0
done
Advanced Tree
by Shoko84
Advanced Tree
XP
+50 XP
Completed by 115 CodinGamers
0
done
Near-Palindromes
by JBM
Near-Palindromes
XP
+50 XP
Completed by 124 CodinGamers
0
done
Reversed Look-and-say
by elthaniel
Reversed Look-and-say
XP
+50 XP
Completed by 123 CodinGamers
0
done
Gravity Centrifuge
by JBM
Gravity Centrifuge
XP
+50 XP
Completed by 34 CodinGamers
0
done
Gravity Centrifuge Tuning
by JBM
Gravity Centrifuge Tuning
XP
+50 XP
Completed by 25 CodinGamers
0
done
Code your own Automaton2000, step 1
by Magus
Code your own Automaton2000, step 1
XP
+50 XP
Completed by 68 CodinGamers
0
done
Castle Siege
by TheNinja
Castle Siege
XP
+50 XP
Completed by 148 CodinGamers
0
done
Cryptarithm
by Bob
Cryptarithm
XP
+50 XP
Completed by 136 CodinGamers
0
done
Monte Carlo Tree Search exercise
by aCat
Monte Carlo Tree Search exercise
XP
+50 XP
Completed by 25 CodinGamers
0
done
Test before Validate!
by bloublou
Test before Validate!
XP
+50 XP
Completed by 132 CodinGamers
0
done
The water jug riddle from Die Hard 3
by tyrcho
The water jug riddle from Die Hard 3
XP
+50 XP
Completed by 104 CodinGamers
0
done
Binary neural network - Part 1
by player_one
Binary neural network - Part 1
XP
+50 XP
Completed by 61 CodinGamers
0
done
Erdős Number
by Delgan
Erdős Number
XP
+50 XP
Completed by 109 CodinGamers
0
done
Divine!
by Bob
Divine!
XP
+50 XP
Completed by 110 CodinGamers
0
done
Binary Permutations
by TheNinja
Binary Permutations
XP
+50 XP
Completed by 104 CodinGamers
0
done
Tetris
by Bob
Tetris
XP
+50 XP
Completed by 100 CodinGamers
0
done
Electrical grid
by yoha
Electrical grid
XP
+50 XP
Completed by 99 CodinGamers
0
done
The Lucky Number
by dogther
The Lucky Number
XP
+50 XP
Completed by 91 CodinGamers
0
done
Othello
by nicola
Othello
XP
+50 XP
Completed by 96 CodinGamers
0
done
Binary neural network - Part 2
by player_one
Binary neural network - Part 2
XP
+50 XP
Completed by 46 CodinGamers
0
done
Wall Street
by MasterJos
Wall Street
XP
+50 XP
Completed by 52 CodinGamers
0
done
2×2×2 Rubik’s cube movements
by nicola
2×2×2 Rubik’s cube movements
XP
+50 XP
Completed by 59 CodinGamers
0
done
Cheat Solving
by JBM
Cheat Solving
XP
+50 XP
Completed by 41 CodinGamers
0
done
X egg problem
by Romario
X egg problem
XP
+50 XP
Completed by 52 CodinGamers
0
done
Xorandor
by Blackfich
Xorandor
XP
+50 XP
Completed by 49 CodinGamers
0
done
Parsing context-free grammar
by aCat
Parsing context-free grammar
XP
+50 XP
Completed by 30 CodinGamers
0
done
Pascal Trapezoid
by player_one
Pascal Trapezoid
XP
+50 XP
Completed by 55 CodinGamers
0
done
The Crime Scene
by mainge2036
The Crime Scene
XP
+50 XP
Completed by 65 CodinGamers
0
done
Horse-hyperracing Hyperduals
by JBM
Horse-hyperracing Hyperduals
XP
+50 XP
Completed by 52 CodinGamers
0
done
Prime Transformations
by TheNinja
Prime Transformations
XP
+50 XP
Completed by 60 CodinGamers
0
done
The Burglar's Dilemna
by Keelhaul
The Burglar's Dilemna
XP
+50 XP
Completed by 48 CodinGamers
0
done
Squares order
by VilBoub
Squares order
XP
+50 XP
Completed by 67 CodinGamers
0
done
Chemical Equation Balancing
by btharper
Chemical Equation Balancing
XP
+50 XP
Completed by 46 CodinGamers
0
done
Fill the square!
by SatineChatounette
Fill the square!
XP
+50 XP
Completed by 61 CodinGamers
0
done
Universe Conquest
by Enygma
Universe Conquest
XP
+50 XP
Completed by 61 CodinGamers
0
done
Misère Nim
by magaiti
Misère Nim
XP
+50 XP
Completed by 41 CodinGamers
0
done
Hitori solver
by VilBoub
Hitori solver
XP
+50 XP
Completed by 20 CodinGamers
0
done
Flood the World
by Aries
Flood the World
XP
+50 XP
Completed by 46 CodinGamers
0
done
Einstein's riddle solver
by OroshiX
Einstein's riddle solver
XP
+50 XP
Completed by 40 CodinGamers
0
done
Rocket mice
by player_one
Rocket mice
XP
+50 XP
Completed by 27 CodinGamers
0
done
CodinDice
by BlitzProg
CodinDice
XP
+50 XP
Completed by 37 CodinGamers
0
done
Spy the Spies
by player_one
Spy the Spies
XP
+50 XP
Completed by 38 CodinGamers
0
done
Cubax Folding
by masterglob
Cubax Folding
XP
+50 XP
Completed by 22 CodinGamers
0
done
Hourglass
by GabrielEm
Hourglass
XP
+50 XP
Completed by 31 CodinGamers
0
done
Haunted Manor
by [CG]jupoulton
Haunted Manor
XP
+50 XP
Completed by 40 CodinGamers
0
done
Ticket to Ride: Europe
by player_one
Ticket to Ride: Europe
XP
+50 XP
Completed by 17 CodinGamers
0
done
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