Roman to Arabic in all languages in chars. Achievements Cheevos Holes Languages Medals Miscellaneous 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 Taxicab 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 Erlang 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 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 Erlang 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 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 Taxicab Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 526th HPWiz 🇳🇿 733 98 18ms 5 Sep 2021 526th jakobkordez 🇸🇮 733 98 21ms 31 Oct 2022 526th Rubiksmath 733 98 19ms 5 Sep 2023 526th ovs-code 🇩🇪 733 98 35ms 27 Jan 2024 526th elgan65536 733 98 20ms 31 Mar 2024 526th 4atj 733 98 18ms 30 Jun 2025 532nd SirBogman 🇺🇸 727 66 47ms 20 Mar 2022 533rd sisyphus-ppcg 🇦🇺 727 89 404ms 16 Jan 2024 533rd MeWhenI 🇻🇦 727 89 454ms 24 May 2024 533rd CaedenHarper 🇨🇦 727 89 522ms 30 Sep 2025 533rd snoozingnewt 🇺🇸 727 89 370ms 7 days ago 537th CaedenHarper 🇨🇦 727 104 14ms 17 Aug 2025 538th kg583 🇺🇸 727 114 14ms 28 Sep 2025 539th xnor-gate 726 99 40ms 18 Sep 2021 539th wh3n3v3r 🇨🇿 726 99 29ms 8 Nov 2024 541st AlephSquirrel 726 138 5ms 29 Jul 2023 542nd treeowl 726 153 352ms 25 Feb 2019 543rd Lydxn 🇨🇦 725 139 373ms 30 Jun 2021 543rd ScottHamper 725 139 380ms 1 Jul 2021 543rd dokutan 725 139 410ms 14 days ago 546th MeWhenI 🇻🇦 724 128 35ms 10 Oct 2023 546th rucin93 🇵🇱 724 128 28ms 22 Apr 2025 548th o0lit3 🇺🇸 722 61 24ms 27 Sep 2020 548th Lydxn 🇨🇦 722 61 205ms 31 Dec 2021 548th DialFrost 🇸🇬 722 61 195ms 25 Jan 2023 548th ovs-code 🇩🇪 722 61 184ms 3 Oct 2023 548th iczelia 🇩🇪 722 61 177ms 22 days ago 548th blaztoma 🇱🇹 722 61 181ms 5 days ago 554th Waffle3z 722 124 18ms 17 Apr 2022 555th laikoni 722 154 393ms 23 Feb 2019 556th MeWhenI 🇻🇦 721 98 2,454ms 24 Oct 2024 557th prplz 🇦🇺 720 81 903ms 17 Jun 2020 557th Feniske 🇫🇷 720 81 2,522ms 26 Nov 2023 559th xyangst 720 105 12ms 4 Oct 2024 559th Salutations45 720 105 12ms 11 Jan 2025 561st ndren 719 90 409ms 5 May 2024 561st DialFrost 🇸🇬 719 90 511ms 4 Jun 2024 563rd inventshah 719 100 20ms 14 Apr 2021 563rd lynn 719 100 20ms 29 Nov 2021 563rd CedricGebistorf 719 100 20ms 2 Mar 2022 563rd scpchicken 🇵🇼 719 100 19ms 4 May 2022 563rd AlephSquirrel 719 100 25ms 6 Dec 2022 563rd bricknellj 719 100 18ms 25 Jan 2023 563rd LogicalJoe 719 100 21ms 24 May 2023 563rd janbehrens 🇩🇪 719 100 20ms 17 Jun 2023 563rd bizy-coder 719 100 22ms 27 Jan 2024 563rd 5cw 🇺🇸 719 100 19ms 5 Jul 2024 563rd firegene 🇮🇪 719 100 19ms 30 Jan 2025 563rd edsrzf 🇳🇿 719 100 19ms 29 Jun 2025 563rd KasperKivimaeki 🇫🇮 719 100 23ms 30 Jun 2025 563rd wuduculfre 719 100 19ms 22 Jul 2025 577th Shanethegamer 🇺🇸 714 88 16ms 30 Oct 2023 578th Attero 🇸🇪 713 106 14ms 28 Oct 2020 578th jared-hughes 713 106 18ms 3 Aug 2022 578th coreynash 713 106 17ms 16 Feb 2024 581st antimon2 🇯🇵 712 83 1,018ms 18 Aug 2025 582nd mrondon8 712 101 21ms 5 Sep 2021 582nd Artemis21 🇬🇧 712 101 25ms 10 Jan 2025 584th Shanethegamer 🇺🇸 712 139 59ms 30 Jun 2022 585th HPWiz 🇳🇿 711 48 52ms 4 Oct 2021 586th AlephSquirrel 711 91 536ms 21 Jan 2024 586th Jacob385 711 91 512ms 13 Nov 2024 588th ovs-code 🇩🇪 709 92 147ms 20 Nov 2024 588th dokutan 709 92 134ms 20 Apr 2025 590th raphaelimahorn 707 107 16ms 17 Aug 2021 590th scpchicken 🇵🇼 707 107 13ms 26 Jan 2022 590th itsh01 707 107 16ms 3 Apr 2022 590th solmyr2000 707 107 15ms 11 Jun 2022 590th rifatx 707 107 14ms 17 Mar 2023 590th acollett89 707 107 13ms 4 Aug 2025 596th Attero 🇸🇪 705 102 22ms 25 Sep 2020 597th Shanethegamer 🇺🇸 704 115 74ms 30 Oct 2023 598th user189032 703 158 345ms 30 May 2019 599th Yewzir 🇧🇪 702 172 62ms 9 Jun 2024 600th strout 699 159 368ms 14 Dec 2023 First Prev 526–600 of 1,437 Next Last