The Hilbert Curve hole will go live in approximately 2 days. Why not try and solve it ahead of time?
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 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 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 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 600th jipsong 🇩🇪 879 89 7 Apr 2025 602nd ravnskjaer 🇩🇰 879 133 11 Sep 2024 603rd sisyphus-ppcg 🇦🇺 878 40 31 Jan 2023 603rd sean-niemann 🇺🇸 878 40 8 Mar 2025 605th steffan-polygolf 877 74 14 Feb 2024 606th primo-ppcg 🇹🇭 876 193 14 days ago 607th GrayJoKing 🇦🇺 875 72 31 May 2022 607th Shanethegamer 🇺🇸 875 72 1 Jun 2022 607th Steffan153 🇫🇮 875 72 10 Dec 2022 610th ovs-code 🇩🇪 875 73 22 Jul 2023 611th Shanethegamer 🇺🇸 875 81 19 Dec 2023 611th emgordon154 875 81 29 Jul 2025 613th Shanethegamer 🇺🇸 875 142 27 Mar 2025 613th DialFrost 🇸🇬 875 142 28 Mar 2025 613th emgordon154 875 142 10 Apr 2025 616th Shanethegamer 🇺🇸 874 51 15 May 2023 617th Grrisly 874 74 25 Mar 2024 618th Shanethegamer 🇺🇸 874 152 9 Sep 2023 618th emgordon154 874 152 2 Oct 2024 618th DialFrost 🇸🇬 874 152 27 Oct 2024 621st rucin93 🇵🇱 873 57 4 Aug 2024 621st dokutan 873 57 9 Aug 2024 623rd c0d3-4-F00d 🇩🇪 873 61 6 May 2022 623rd jackkav 873 61 26 Jun 2022 623rd TechNolaByte 873 61 6 Jul 2022 623rd Heathcorp 🇦🇺 873 61 17 Jul 2022 623rd C0de5mith 🇺🇸 873 61 3 Aug 2022 623rd sebipopa 🇷🇴 873 61 18 Aug 2022 623rd moikaturns 🇬🇧 873 61 25 Sep 2022 623rd FlorianCassayre 🇫🇷 873 61 27 Sep 2022 623rd Mazn3k 873 61 1 Feb 2023 623rd tvcv901 873 61 22 Mar 2023 623rd unfinishedprogram 873 61 19 Jul 2023 623rd snoozingnewt 🇺🇸 873 61 23 Sep 2023 623rd funnyboy-roks 873 61 9 May 2024 623rd bac0id 873 61 29 Jun 2024 623rd madex 🇩🇪 873 61 9 Jul 2024 623rd FortuiteMan 🇫🇷 873 61 10 Oct 2024 623rd RobertHoeh 873 61 5 Apr 2025 623rd LvLError 873 61 29 May 2025 623rd Lv0Sys 🇵🇱 873 61 30 May 2025 623rd miles-evan 873 61 24 days ago 643rd NerdyMcNerd42 873 64 26 Oct 2022 643rd tpasfieldERAU 873 64 14 Nov 2022 643rd CheeseCake628 🇳🇴 873 64 6 Jan 2023 643rd adamnielson42 🇺🇸 873 64 25 Apr 2023 643rd nathsou 🇫🇷 873 64 2 Sep 2023 643rd zwxzwxzwx21 873 64 30 Jan 2024 643rd steffan-polygolf 873 64 8 Mar 2024 643rd Jacob385 873 64 4 Apr 2024 643rd gallium-gonzollium 873 64 26 Aug 2024 652nd GrayJoKing 🇦🇺 873 84 19 Jun 2022 652nd primo-ppcg 🇹🇭 873 84 29 Jun 2022 654th althryenix 873 134 25 Jul 2022 654th MrGagnonHPS 873 134 1 Nov 2023 654th noescareno 873 134 31 May 2025 654th Schmitt-Very-Cool 873 134 16 Jun 2025 658th Shanethegamer 🇺🇸 872 66 4 May 2022 658th scpchicken 🇵🇼 872 66 5 May 2022 658th sisyphus-ppcg 🇦🇺 872 66 6 May 2022 658th Natanaelel 🇸🇪 872 66 15 Jun 2022 658th Z-snails 872 66 27 Feb 2023 658th Jeremy-Stafford 872 66 27 Feb 2023 658th alomiF 872 66 1 Sep 2023 658th btnlq 872 66 17 Oct 2023 666th johnnythedoggie 872 72 13 May 2022 666th kaascevich 872 72 8 Jul 2025 668th DialFrost 🇸🇬 872 73 3 Jun 2025 669th HPWiz 🇳🇿 871 49 4 May 2022 669th JayXon 🇺🇸 871 49 5 May 2022 669th Steffan153 🇫🇮 871 49 10 Dec 2022 669th ovs-code 🇩🇪 871 49 24 Oct 2023 669th sean-niemann 🇺🇸 871 49 12 Jul 2024 674th c0d3-4-F00d 🇩🇪 871 89 5 May 2022 674th fkantelberg 871 89 15 Jul 2023 Prev 601–675 of 3,263 Next