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 134th dokutan 931 60 15 Aug 2024 134th jatloe 931 60 26 Aug 2024 134th emgordon154 931 60 6 Sep 2024 134th starfihs 931 60 12 Oct 2024 134th CaedenHarper 🇨🇦 931 60 3 Nov 2024 134th 5quiwyrm 931 60 12 Nov 2024 134th plcc0 931 60 26 Mar 2025 134th yujh-yujh 🇬🇸 931 60 28 Mar 2025 134th albanian-laundromat 931 60 12 Apr 2025 134th Mukundan314 931 60 17 Apr 2025 161st canissimia 🇦🇶 930 51 6 May 2022 161st Lydxn 🇨🇦 930 51 6 May 2022 161st primo-ppcg 🇹🇭 930 51 6 May 2022 161st pardouin 🇫🇷 930 51 12 Apr 2025 165th primo-ppcg 🇹🇭 930 58 13 Nov 2022 165th clockworknazo 930 58 15 Nov 2022 165th Lydxn 🇨🇦 930 58 7 Feb 2023 165th xsot 🇸🇬 930 58 28 Jun 2024 165th Salutations45 930 58 18 Dec 2024 170th grey0ut 929 48 8 Apr 2025 171st m-tkach 🇺🇦 928 91 5 May 2022 171st 09cf 928 91 4 Oct 2023 173rd stefangimmillaro 928 126 4 May 2022 173rd Irratix 🇳🇱 928 126 4 May 2022 173rd MeWhenI 🇻🇦 928 126 4 May 2022 173rd janbehrens 🇩🇪 928 126 4 May 2022 173rd shellbertt 🇨🇦 928 126 4 May 2022 173rd inventshah 928 126 4 May 2022 173rd m-tkach 🇺🇦 928 126 4 May 2022 173rd sean-niemann 🇺🇸 928 126 4 May 2022 173rd nwellnhof 🇩🇪 928 126 4 May 2022 173rd Shanethegamer 🇺🇸 928 126 4 May 2022 173rd ScottHamper 928 126 5 May 2022 173rd ovs-code 🇩🇪 928 126 5 May 2022 173rd 5quiwyrm 928 126 4 Sep 2022 173rd KrausRaus 🇺🇸 928 126 9 Sep 2022 173rd Betuaredead 928 126 5 Jan 2023 173rd annaproxy 928 126 7 Jan 2023 173rd Yewzir 🇧🇪 928 126 12 Feb 2023 173rd Jacob385 928 126 4 Mar 2024 173rd dokutan 928 126 17 Mar 2024 173rd eMGeeneer 928 126 15 Jun 2024 173rd mrondon8 928 126 2 Dec 2024 194th GolfingSuccess 🇬🇷 926 49 12 Aug 2024 194th Shanethegamer 🇺🇸 926 49 12 Aug 2024 194th Steffan153 🇫🇮 926 49 12 Aug 2024 194th MeWhenI 🇻🇦 926 49 13 Aug 2024 194th DialFrost 🇸🇬 926 49 13 Aug 2024 194th GrayJoKing 🇦🇺 926 49 15 Aug 2024 194th btnlq 926 49 16 Aug 2024 194th emgordon154 926 49 19 Aug 2024 194th ovs-code 🇩🇪 926 49 19 Aug 2024 194th mousetail 🇳🇱 926 49 13 Sep 2024 194th lynn 926 49 20 Dec 2024 194th weeble 926 49 20 Dec 2024 194th sean-niemann 🇺🇸 926 49 11 Jan 2025 207th emplv 🇱🇻 926 60 5 May 2022 207th GrayJoKing 🇦🇺 926 60 6 May 2022 207th targrik 926 60 24 Dec 2024 207th xsot 🇸🇬 926 60 1 May 2025 211th ovs-code 🇩🇪 925 52 16 Jan 2024 211th kg583 🇺🇸 925 52 24 Jan 2024 211th Shanethegamer 🇺🇸 925 52 24 Mar 2024 211th pardouin 🇫🇷 925 52 11 Jul 2024 211th Steffan153 🇫🇮 925 52 17 Aug 2024 211th sean-niemann 🇺🇸 925 52 24 Jan 2025 217th Lydxn 🇨🇦 924 38 4 May 2022 217th GrayJoKing 🇦🇺 924 38 5 May 2022 217th Steffan153 🇫🇮 924 38 16 Dec 2022 217th ovs-code 🇩🇪 924 38 30 Dec 2023 221st GrayJoKing 🇦🇺 924 70 13 Jul 2024 221st FlyingPenguin223 924 70 4 Oct 2024 221st jipsong 🇩🇪 924 70 5 Apr 2025 224th MeWhenI 🇻🇦 923 68 23 Feb 2023 224th JayXon 🇺🇸 923 68 4 Mar 2025 Prev 151–225 of 3,261 Next