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 Hilbert Curve 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 Minesweeper 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 Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi 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 Groovy 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 Harbour Hare Haxe Hush Hy iogii Knight Luau 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 Groovy 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 Harbour Hare Haxe Hush Hy iogii Knight Luau 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 Hilbert Curve 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 Minesweeper 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 Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 901st sean-niemann 🇺🇸 839 76 107ms 8 Oct 2024 902nd Codsilla 🇨🇦 838 51 258ms 1 Jul 2022 903rd frankgraziano 838 66 4ms 20 Apr 2025 904th Andriamanitra 🇫🇮 838 83 12ms 17 Apr 2023 904th Natanaelel 🇸🇪 838 83 11ms 8 Jul 2023 906th emplv 🇱🇻 838 124 27ms 31 Oct 2022 907th MeWhenI 🇻🇦 838 164 1,609ms 15 days ago 908th ovs-code 🇩🇪 837 85 17ms 11 Dec 2023 909th Steffan153 🇫🇮 837 97 33ms 18 Jan 2023 910th CatsAreFluffy 837 101 75ms 18 Feb 2023 910th annaproxy 837 101 54ms 9 May 2023 910th wojtekmal 837 101 53ms 15 Nov 2023 910th HumanoidCPU 837 101 51ms 6 May 2024 910th eMGeeneer 837 101 363ms 27 Jun 2024 910th bac0id 837 101 53ms 29 Jun 2024 910th michaelmoynihan 837 101 387ms 3 Sep 2025 910th snoozingnewt 🇺🇸 837 101 371ms 6 Oct 2025 918th dokutan 836 88 49ms 9 Jun 2024 919th SirBogman 🇺🇸 835 36 9ms 5 May 2022 919th Natanaelel 🇸🇪 835 36 90ms 15 Jun 2022 919th Steffan153 🇫🇮 835 36 91ms 18 Jan 2023 919th codereport 🇨🇦 835 36 8ms 1 Jun 2024 919th GolfinK 835 36 9ms 21 Nov 2024 919th lifthrasiir 🇰🇷 835 36 9ms 1 Dec 2024 919th GolfingSuccess 🇬🇷 835 36 10ms 20 Mar 2025 926th scpchicken 🇵🇼 835 55 11ms 4 May 2022 926th SirBogman 🇺🇸 835 55 8ms 5 May 2022 926th Shanethegamer 🇺🇸 835 55 6ms 19 May 2023 926th DialFrost 🇸🇬 835 55 11ms 14 Feb 2025 930th inverseLorentz 🇦🇺 835 69 176ms 3 Jun 2024 930th Yewzir 🇧🇪 835 69 110ms 24 Dec 2024 930th CLOStrophobic 🇮🇹 835 69 174ms 28 May 2025 933rd Re-Adventures 🇮🇳 835 116 260ms 16 Jul 2023 933rd Yewzir 🇧🇪 835 116 256ms 7 Feb 2024 935th ChiefChippy2 834 56 39ms 4 May 2022 935th aksyristos 834 56 41ms 29 Jan 2023 935th anter69 🇭🇺 834 56 39ms 12 Feb 2024 935th 3dm4n 🇫🇮 834 56 52ms 11 Mar 2024 935th lgrandco 834 56 41ms 9 Oct 2024 935th tatzyr 🇯🇵 834 56 40ms 10 Dec 2024 941st moustave 834 67 22ms 7 Nov 2024 942nd Alex-x90 🇺🇸 834 74 2ms 4 Dec 2022 942nd undersquire 834 74 3ms 24 Jun 2023 942nd rdmsr 834 74 2ms 24 Jun 2023 942nd Bmrl7 834 74 3ms 9 Jul 2023 942nd Vinterion 834 74 3ms 6 Nov 2023 942nd namelessiw 834 74 3ms 28 Dec 2023 942nd Jonatan6 🇩🇰 834 74 3ms 15 Mar 2024 942nd Mandrzejy 🇵🇱 834 74 5ms 12 Apr 2024 942nd kaurakeksi 🇫🇮 834 74 3ms 29 Dec 2024 951st Shanethegamer 🇺🇸 834 82 155ms 15 May 2023 952nd p-vf 🇨🇭 834 93 317ms 24 Jun 2022 952nd Smetalo 834 93 315ms 25 Aug 2022 952nd malworthy 834 93 329ms 19 Aug 2024 955th Natanaelel 🇸🇪 833 39 196ms 10 Feb 2025 956th Steffan153 🇫🇮 833 55 78ms 21 Dec 2022 957th Shanethegamer 🇺🇸 833 57 1,051ms 15 Dec 2022 957th anter69 🇭🇺 833 57 876ms 23 Feb 2023 957th stefangimmillaro 833 57 891ms 6 May 2023 960th elisherer 🇮🇱 833 64 14ms 5 Jun 2022 960th Ashikpaul 🇮🇳 833 64 12ms 29 Jul 2022 960th LukeBridges 🇬🇧 833 64 10ms 26 Oct 2022 960th florton 833 64 14ms 18 Jan 2023 960th DayDun 🇸🇪 833 64 10ms 24 Jan 2023 960th lyphyser 833 64 11ms 3 Jun 2023 960th Davr1 🇨🇿 833 64 10ms 14 Oct 2023 960th stellartux 833 64 12ms 26 Dec 2023 960th goodwyna21 833 64 11ms 12 Nov 2024 960th xShadowBlade 833 64 11ms 26 Dec 2024 960th richard-oelze 🇩🇪 833 64 14ms 4 Aug 2025 971st MeWhenI 🇻🇦 833 101 26ms 5 May 2022 972nd nwellnhof 🇩🇪 833 117 1,569ms 16 Nov 2022 973rd MeWhenI 🇻🇦 832 90 40ms 13 Feb 2025 974th ovs-code 🇩🇪 831 60 140ms 3 Aug 2024 974th GrayJoKing 🇦🇺 831 60 142ms 24 Oct 2024 First Prev 901–975 of 3,459 Next Last