Arabic to Roman 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 600th emgordon154 678 127 29ms 1 Aug 2024 602nd stefangimmillaro 678 168 4,082ms 10 Nov 2024 602nd MeWhenI 🇻🇦 678 168 2,538ms 2 Dec 2024 604th kimbo 🇺🇸 678 227 298ms 17 Dec 2022 605th GrayJoKing 🇦🇺 677 68 13ms 15 Apr 2021 606th southpolenator 677 199 69ms 10 Jun 2023 607th janbehrens 🇩🇪 675 176 346ms 17 Apr 2025 608th targrik 674 129 50ms 4 Sep 2025 609th Shanethegamer 🇺🇸 673 116 472ms 16 Jan 2024 610th Ripick 673 184 425ms 12 Jul 2025 611th janbehrens 🇩🇪 673 215 363ms 7 Jan 2022 612th SirBogman 🇺🇸 672 58 8ms 22 Mar 2022 613th MeWhenI 🇻🇦 672 116 672ms 1 Feb 2024 614th MeWhenI 🇻🇦 672 141 14ms 1 Feb 2024 615th Shanethegamer 🇺🇸 672 177 403ms 28 Jan 2024 616th Shanethegamer 🇺🇸 671 115 646ms 8 Jan 2022 617th duckyluuk 🇳🇱 671 181 67ms 16 Dec 2024 618th JDiLenarda 🇫🇷 671 205 1,403ms 22 Nov 2023 619th Shanethegamer 🇺🇸 669 159 143ms 24 May 2025 620th Shanethegamer 🇺🇸 669 185 616ms 28 Jan 2024 621st Shanethegamer 🇺🇸 669 214 120ms 28 Jan 2024 622nd AlephSquirrel 667 129 20ms 15 Aug 2022 622nd 5cw 🇺🇸 667 129 20ms 8 May 2025 624th stackotter 665 227 117ms 29 May 2023 625th Jonatan6 🇩🇰 663 203 69ms 3 Aug 2023 626th SirBogman 🇺🇸 663 375 547ms 23 Nov 2022 627th primo-ppcg 🇹🇭 662 130 21ms 6 Oct 2021 628th Shanethegamer 🇺🇸 661 233 293ms 28 Jan 2024 628th targrik 661 233 297ms 3 Jul 2025 630th Yewzir 🇧🇪 660 161 174ms 13 Sep 2023 631st darkoboshkovski 659 155 12ms 12 Jun 2023 632nd MeWhenI 🇻🇦 659 176 9ms 16 Jun 2023 633rd MeWhenI 🇻🇦 659 249 169ms 1 Feb 2024 634th scpchicken 🇵🇼 657 70 18ms 6 Jan 2023 635th p-vf 🇨🇭 657 181 383ms 21 Nov 2021 636th Steffan153 🇫🇮 656 119 591ms 30 May 2024 636th Babafaba 656 119 490ms 11 Sep 2025 638th annaproxy 656 222 346ms 1 Aug 2022 639th prestosilver 🇺🇸 655 156 11ms 2 hours ago 640th MichalMarsalek 🇨🇿 655 189 433ms 22 Jan 2023 640th DestyNova 🇮🇪 655 189 441ms 15 Apr 2025 642nd jared-hughes 654 97 51ms 16 Apr 2022 643rd AlephSquirrel 654 133 21ms 15 Feb 2023 643rd jbt 654 133 21ms 25 Dec 2023 645th clockworknazo 653 140 24ms 27 Feb 2023 646th stefangimmillaro 653 182 438ms 17 Sep 2024 647th BlankSpruce 651 207 429ms 26 Aug 2022 648th Jonatan6 🇩🇰 650 157 11ms 4 Aug 2023 649th janbehrens 🇩🇪 649 134 14ms 12 Nov 2023 650th HumanoidCPU 649 223 420ms 13 days ago 651st mokymok 🇺🇸 647 133 19ms 23 Jul 2021 651st evan18c 647 133 23ms 27 Apr 2025 653rd kmathis22 646 224 421ms 24 Oct 2025 654th Shanethegamer 🇺🇸 645 147 48ms 28 Jan 2024 655th MeWhenI 🇻🇦 644 165 175ms 1 Feb 2024 656th emgordon154 644 177 2,772ms 9 Aug 2025 657th nsprd 644 209 393ms 19 Jan 2024 658th Fishron 642 134 22ms 21 Oct 2021 659th MeWhenI 🇻🇦 642 159 12ms 25 Aug 2023 660th itsh01 640 136 20ms 9 Aug 2021 661st jared-hughes 640 181 8ms 18 Jul 2022 662nd AlephSquirrel 639 122 530ms 21 Jan 2024 662nd JunkIce 639 122 437ms 3 Dec 2024 664th JGDoerrer 639 257 188ms 15 Feb 2022 665th jared-hughes 638 211 394ms 24 Jun 2022 666th stefangimmillaro 635 137 16ms 12 Sep 2024 667th MeWhenI 🇻🇦 635 195 814ms 27 Jul 2024 668th emgordon154 634 123 486ms 1 Aug 2024 669th xnor-gate 633 136 337ms 4 Dec 2021 669th cingulataluke 633 136 47ms 29 Aug 2023 671st KatieLG 🇬🇧 632 143 1,107ms 17 Nov 2023 672nd kkoenig 631 244 302ms 30 Dec 2023 673rd h3ra993huskp 🇯🇵 629 230 384ms 3 Nov 2024 674th okaponta 629 261 185ms 13 Jan 2024 675th davitf 628 137 19ms 28 Jul 2020 First Prev 601–675 of 1,836 Next Last