ISBN 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 Calendar 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 Tower of Hanoi 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 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 Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers 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 ArkScript 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 ArkScript 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 Calendar 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 Tower of Hanoi 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 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 Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 481st m-tkach 🇺🇦 800 137 61ms 15 Jan 2022 481st sean-niemann 🇺🇸 800 137 60ms 3 Feb 2024 483rd MeWhenI 🇻🇦 799 101 4ms 23 May 2023 484th mtirado1 799 108 2ms 6 May 2023 485th edsrzf 🇳🇿 798 114 7ms 22 Aug 2025 486th MeWhenI 🇻🇦 798 137 2ms 12 Sep 2022 487th typeswitch-dev 🇵🇹 797 121 8ms 14 Aug 2023 488th Shanethegamer 🇺🇸 796 84 79ms 9 Jun 2022 489th Shanethegamer 🇺🇸 796 168 25ms 28 Apr 2022 490th Shanethegamer 🇺🇸 795 159 30ms 20 Jul 2023 491st igmcdowell 794 89 10ms 24 Feb 2022 491st inventshah 794 89 10ms 21 Jun 2022 491st olleicua 🇺🇸 794 89 11ms 3 Feb 2024 491st kpal81xd 794 89 12ms 15 Sep 2024 491st KatieLG 🇬🇧 794 89 9ms 5 Oct 2025 496th Yewzir 🇧🇪 794 185 1,707ms 21 May 2024 497th gitbedd 🇬🇧 793 87 10ms 10 Jan 2022 497th yzhs 🇩🇪 793 87 11ms 21 Mar 2022 497th CheeseCake628 🇳🇴 793 87 10ms 16 Feb 2023 497th HumanoidCPU 793 87 10ms 2 Mar 2025 501st MeWhenI 🇻🇦 793 116 2ms 5 Jul 2024 502nd stefangimmillaro 792 152 145ms 28 Oct 2023 503rd dokutan 791 79 411ms 15 Aug 2024 503rd Babafaba 791 79 430ms 7 Nov 2025 505th kg583 🇺🇸 791 102 4ms 30 Nov 2025 506th edsrzf 🇳🇿 790 160 32ms 5 May 2025 506th m-tkach 🇺🇦 790 160 31ms 5 May 2025 508th Shanethegamer 🇺🇸 789 115 342ms 21 Apr 2022 509th error256 789 238 1,528ms 18 Apr 2025 510th Steffan153 🇫🇮 787 57 61ms 29 Aug 2024 510th pardouin 🇫🇷 787 57 65ms 2 Sep 2025 512th prplz 🇦🇺 787 70 287ms 19 Jan 2022 512th SirBogman 🇺🇸 787 70 232ms 19 May 2022 514th ovs-code 🇩🇪 786 85 82ms 27 May 2024 515th m-tkach 🇺🇦 786 117 2ms 11 Jan 2022 515th prestosilver 🇺🇸 786 117 2ms 22 days ago 517th sean-niemann 🇺🇸 786 127 40ms 1 Dec 2023 518th ovs-code 🇩🇪 786 153 234ms 21 Jun 2023 519th Lydxn 🇨🇦 785 53 3ms 27 Feb 2023 520th weliveinhell 🇭🇹 785 90 10ms 11 Jan 2024 521st tomh1012 785 98 396ms 31 Jan 2022 521st pkim 785 98 358ms 6 Apr 2023 521st danielxbauer 785 98 356ms 6 Apr 2023 521st meinsiedler 785 98 363ms 6 Apr 2023 521st postie77 785 98 372ms 8 May 2023 526th KrausRaus 🇺🇸 785 106 8ms 11 Nov 2023 527th CaedenHarper 🇨🇦 784 78 758ms 30 Sep 2025 528th MeWhenI 🇻🇦 783 112 156ms 4 Aug 2023 529th DialFrost 🇸🇬 782 166 41ms 7 May 2025 530th Salutations45 781 66 1ms 2 Jan 2025 531st GrayJoKing 🇦🇺 781 93 70ms 9 Dec 2023 532nd lynn 781 154 153ms 11 Mar 2022 532nd The3gs 781 154 159ms 18 Aug 2023 534th adyache 🇺🇸 779 91 8ms 2 Aug 2023 535th sean-niemann 🇺🇸 779 118 2ms 3 Feb 2024 536th edsrzf 🇳🇿 779 133 1,295ms 26 Apr 2025 537th DialFrost 🇸🇬 779 241 1,475ms 18 Apr 2025 538th msbranicky 778 112 2ms 10 Oct 2023 539th AlephSquirrel 778 130 6ms 21 Oct 2024 540th adamnielson42 🇺🇸 777 91 10ms 26 Apr 2023 540th luuumine 🇫🇷 777 91 10ms 12 Nov 2025 542nd Skleni 777 99 366ms 6 Apr 2023 543rd LHLaurini 🇧🇷 777 141 59ms 17 Jul 2024 544th DialFrost 🇸🇬 776 113 118ms 24 May 2025 545th hellwue 775 89 10ms 8 Feb 2023 545th elgan65536 775 89 17ms 29 Mar 2024 545th AdamMorris377 775 89 10ms 29 Jul 2024 545th RaBa21 🇭🇺 775 89 17ms 19 Jul 2025 549th MichalMarsalek 🇨🇿 775 117 360ms 21 Apr 2022 550th dokutan 774 79 763ms 8 Sep 2025 551st xsot 🇸🇬 773 58 38ms 6 Jul 2025 551st sean-niemann 🇺🇸 773 58 33ms 3 Aug 2025 553rd LHLaurini 🇧🇷 773 119 1ms 17 Jul 2024 553rd solisolu 773 119 2ms 25 Nov 2025 555th primo-ppcg 🇹🇭 772 131 6ms 20 Jan 2023 556th kmathis22 772 138 444ms 30 Oct 2025 557th emgordon154 771 81 409ms 1 Aug 2024 558th clockworknazo 771 85 4ms 25 Mar 2023 559th call23re 771 112 2ms 12 Jan 2022 560th strout 771 145 148ms 15 Aug 2022 First Prev 481–560 of 1,568 Next Last