Collatz in all languages in chars. Cheevos Holes Recent Holes Langs Medals Misc All Holes 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir F# Factor Forth Fortran Gleam Go GolfScript Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig 05AB1E ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Groovy Harbour Hare Haxe Hush Hy iogii Knight Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir F# Factor Forth Fortran Gleam Go GolfScript Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig Experimental Language 05AB1E ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Groovy Harbour Hare Haxe Hush Hy iogii Knight Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Hole All 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 900th Natanaelel 🇸🇪 835 83 8 Jul 2023 902nd CLOStrophobic 🇮🇹 835 89 14 Feb 2025 903rd Steffan153 🇫🇮 835 97 18 Jan 2023 904th SirBogman 🇺🇸 834 36 5 May 2022 904th HPWiz 🇳🇿 834 36 7 May 2022 904th Natanaelel 🇸🇪 834 36 15 Jun 2022 904th Steffan153 🇫🇮 834 36 18 Jan 2023 904th codereport 🇨🇦 834 36 1 Jun 2024 904th GolfinK 834 36 21 Nov 2024 904th lifthrasiir 🇰🇷 834 36 1 Dec 2024 904th GolfingSuccess 🇬🇷 834 36 20 Mar 2025 912th ChiefChippy2 834 56 4 May 2022 912th aksyristos 834 56 29 Jan 2023 912th anter69 🇭🇺 834 56 12 Feb 2024 912th 3dm4n 🇫🇮 834 56 11 Mar 2024 912th lgrandco 834 56 9 Oct 2024 912th tatzyr 🇯🇵 834 56 10 Dec 2024 912th vishal-mohanty 834 56 26 mins ago 919th moustave 834 67 7 Nov 2024 920th inverseLorentz 🇦🇺 834 69 3 Jun 2024 920th CLOStrophobic 🇮🇹 834 69 28 May 2025 922nd ovs-code 🇩🇪 834 85 11 Dec 2023 923rd p-vf 🇨🇭 834 93 24 Jun 2022 923rd Smetalo 834 93 25 Aug 2022 923rd malworthy 834 93 19 Aug 2024 926th Alex-x90 🇺🇸 833 74 4 Dec 2022 926th undersquire 833 74 24 Jun 2023 926th rdmsr 833 74 24 Jun 2023 926th Bmrl7 833 74 9 Jul 2023 926th Vinterion 833 74 6 Nov 2023 926th namelessiw 833 74 28 Dec 2023 926th Jonatan6 🇩🇰 833 74 15 Mar 2024 926th Mandrzejy 🇵🇱 833 74 12 Apr 2024 926th kaurakeksi 🇫🇮 833 74 29 Dec 2024 935th Shanethegamer 🇺🇸 833 82 15 May 2023 936th dokutan 833 88 9 Jun 2024 937th nwellnhof 🇩🇪 833 117 16 Nov 2022 938th Steffan153 🇫🇮 832 55 21 Dec 2022 939th Shanethegamer 🇺🇸 832 57 15 Dec 2022 939th anter69 🇭🇺 832 57 23 Feb 2023 939th stefangimmillaro 832 57 6 May 2023 942nd elisherer 🇮🇱 832 64 5 Jun 2022 942nd Ashikpaul 🇮🇳 832 64 29 Jul 2022 942nd LukeBridges 🇬🇧 832 64 26 Oct 2022 942nd florton 832 64 18 Jan 2023 942nd DayDun 🇸🇪 832 64 24 Jan 2023 942nd lyphyser 832 64 3 Jun 2023 942nd Davr1 🇨🇿 832 64 14 Oct 2023 942nd stellartux 832 64 26 Dec 2023 942nd goodwyna21 832 64 12 Nov 2024 942nd xShadowBlade 832 64 26 Dec 2024 942nd richard-oelze 🇩🇪 832 64 20 days ago 953rd MeWhenI 🇻🇦 832 101 5 May 2022 954th emplv 🇱🇻 832 124 31 Oct 2022 955th Natanaelel 🇸🇪 830 39 10 Feb 2025 956th ovs-code 🇩🇪 830 60 3 Aug 2024 956th GrayJoKing 🇦🇺 830 60 24 Oct 2024 956th Shanethegamer 🇺🇸 830 60 19 Dec 2024 959th alphafalfa 830 65 23 Aug 2024 960th sean-niemann 🇺🇸 829 67 5 May 2022 960th pschmid0 🇺🇸 829 67 5 Aug 2022 960th arobson13 🇨🇦 829 67 11 Apr 2023 960th janbehrens 🇩🇪 829 67 17 May 2023 964th rollershutter 829 78 8 Jul 2022 964th destofr 829 78 25 Aug 2022 964th 5quiwyrm 829 78 4 Sep 2022 964th thej10n 829 78 12 Jun 2024 964th SwordF-Official 829 78 27 Apr 2025 969th yashima 829 141 19 Oct 2024 970th tkr-sh 🇫🇷 828 102 20 Aug 2022 970th trist224 🇫🇷 828 102 14 Dec 2022 972nd GolfingSuccess 🇬🇷 828 150 18 Jan 2025 972nd ovs-code 🇩🇪 828 150 27 Mar 2025 974th msbranicky 827 100 5 Oct 2023 974th dokutan 827 100 3 Oct 2024 Prev 901–975 of 3,260 Next