Roman to Arabic 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 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 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 526th HPWiz 🇳🇿 733 98 24ms 5 Sep 2021 526th jakobkordez 🇸🇮 733 98 20ms 31 Oct 2022 526th Rubiksmath 733 98 18ms 5 Sep 2023 526th ovs-code 🇩🇪 733 98 50ms 27 Jan 2024 526th elgan65536 733 98 28ms 31 Mar 2024 526th 4atj 733 98 20ms 30 Jun 2025 532nd SirBogman 🇺🇸 727 66 47ms 20 Mar 2022 533rd CaedenHarper 🇨🇦 727 104 13ms 17 Aug 2025 534th kg583 🇺🇸 727 114 15ms 28 Sep 2025 535th sisyphus-ppcg 🇦🇺 726 89 404ms 16 Jan 2024 535th MeWhenI 🇻🇦 726 89 454ms 24 May 2024 535th CaedenHarper 🇨🇦 726 89 522ms 30 Sep 2025 538th xnor-gate 726 99 58ms 18 Sep 2021 538th wh3n3v3r 🇨🇿 726 99 20ms 8 Nov 2024 540th AlephSquirrel 726 138 5ms 29 Jul 2023 541st treeowl 726 153 352ms 25 Feb 2019 542nd Lydxn 🇨🇦 725 139 373ms 30 Jun 2021 542nd ScottHamper 725 139 380ms 1 Jul 2021 542nd dokutan 725 139 410ms 26 hours ago 545th janbehrens 🇩🇪 724 122 472ms 18 May 2023 546th Waffle3z 722 124 18ms 17 Apr 2022 547th laikoni 722 154 393ms 23 Feb 2019 548th o0lit3 🇺🇸 721 61 24ms 27 Sep 2020 548th Lydxn 🇨🇦 721 61 205ms 31 Dec 2021 548th DialFrost 🇸🇬 721 61 195ms 25 Jan 2023 548th ovs-code 🇩🇪 721 61 184ms 3 Oct 2023 548th iczelia 🇩🇪 721 61 177ms 9 days ago 553rd MeWhenI 🇻🇦 721 98 2,454ms 24 Oct 2024 554th prplz 🇦🇺 720 81 1,043ms 17 Jun 2020 554th Feniske 🇫🇷 720 81 2,793ms 26 Nov 2023 556th xyangst 720 105 17ms 4 Oct 2024 556th Salutations45 720 105 13ms 11 Jan 2025 558th inventshah 719 100 27ms 14 Apr 2021 558th lynn 719 100 27ms 29 Nov 2021 558th CedricGebistorf 719 100 22ms 2 Mar 2022 558th scpchicken 🇵🇼 719 100 19ms 4 May 2022 558th AlephSquirrel 719 100 33ms 6 Dec 2022 558th bricknellj 719 100 21ms 25 Jan 2023 558th LogicalJoe 719 100 19ms 24 May 2023 558th janbehrens 🇩🇪 719 100 24ms 17 Jun 2023 558th bizy-coder 719 100 20ms 27 Jan 2024 558th 5cw 🇺🇸 719 100 21ms 5 Jul 2024 558th firegene 🇮🇪 719 100 28ms 30 Jan 2025 558th edsrzf 🇳🇿 719 100 29ms 29 Jun 2025 558th KasperKivimaeki 🇫🇮 719 100 27ms 30 Jun 2025 558th wuduculfre 719 100 21ms 22 Jul 2025 572nd ndren 718 90 409ms 5 May 2024 572nd DialFrost 🇸🇬 718 90 511ms 4 Jun 2024 574th Shanethegamer 🇺🇸 714 88 16ms 30 Oct 2023 575th Attero 🇸🇪 713 106 13ms 28 Oct 2020 575th jared-hughes 713 106 17ms 3 Aug 2022 575th coreynash 713 106 13ms 16 Feb 2024 578th antimon2 🇯🇵 712 83 1,088ms 18 Aug 2025 579th mrondon8 712 101 24ms 5 Sep 2021 579th Artemis21 🇬🇧 712 101 20ms 10 Jan 2025 581st Shanethegamer 🇺🇸 712 139 59ms 30 Jun 2022 582nd HPWiz 🇳🇿 711 48 52ms 4 Oct 2021 583rd AlephSquirrel 710 91 536ms 21 Jan 2024 583rd Jacob385 710 91 512ms 13 Nov 2024 585th ovs-code 🇩🇪 709 92 147ms 20 Nov 2024 585th dokutan 709 92 134ms 20 Apr 2025 587th raphaelimahorn 707 107 16ms 17 Aug 2021 587th scpchicken 🇵🇼 707 107 13ms 26 Jan 2022 587th itsh01 707 107 13ms 3 Apr 2022 587th solmyr2000 707 107 12ms 11 Jun 2022 587th rifatx 707 107 15ms 17 Mar 2023 587th acollett89 707 107 12ms 4 Aug 2025 593rd Attero 🇸🇪 705 102 24ms 25 Sep 2020 594th user189032 703 158 345ms 30 May 2019 595th Yewzir 🇧🇪 702 172 62ms 9 Jun 2024 596th Shanethegamer 🇺🇸 699 115 74ms 30 Oct 2023 597th strout 699 159 368ms 14 Dec 2023 598th Alessandro-Balconi 🇮🇹 698 49 84ms 14 Jul 2023 598th Shanethegamer 🇺🇸 698 49 81ms 7 Dec 2024 600th HumanoidCPU 698 103 24ms 7 Jun 2024 First Prev 526–600 of 1,401 Next Last