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 Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Multitap Input 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) Taxicab Numbers 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers Huffman Encoder NFA Simulator Nim Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 ArkScript 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Multitap Input 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) Taxicab Numbers 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers Huffman Encoder NFA Simulator Nim Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 799th eranws 693 102 11ms 23 Dec 2024 802nd ovs-code 🇩🇪 692 89 501ms 5 Jul 2024 803rd jgbaldwinbrown 692 133 1ms 13 Oct 2022 803rd klixel 🇨🇦 692 133 2ms 27 Nov 2023 805th retrohun 690 75 2ms 9 Nov 2022 806th xsot 🇸🇬 690 100 12ms 21 Jul 2023 806th inventshah 690 100 11ms 3 Aug 2023 806th StefanHabel 🇨🇦 690 100 12ms 5 Sep 2023 806th MeWhenI 🇻🇦 690 100 11ms 7 Dec 2023 806th lynn 690 100 10ms 21 Jun 2024 806th ryyyn 🇺🇸 690 100 10ms 28 Oct 2025 806th CaedenHarper 🇨🇦 690 100 11ms 30 Nov 2025 813th Shanethegamer 🇺🇸 689 89 133ms 8 Jan 2025 813th emplv 🇱🇻 689 89 137ms 28 Mar 2025 813th ovs-code 🇩🇪 689 89 136ms 17 Apr 2025 816th Yewzir 🇧🇪 687 112 439ms 1 Dec 2023 816th michelebastione 🇮🇹 687 112 445ms 20 Sep 2025 818th kkoenig 687 193 328ms 1 Jan 2024 818th rifatx 687 193 332ms 23 Jul 2024 820th denkyuu1 686 103 10ms 23 Feb 2026 821st cbrt-x 686 163 148ms 18 Sep 2023 822nd luuumine 🇫🇷 686 176 163ms 24 Nov 2025 823rd janbehrens 🇩🇪 685 85 303ms 23 Jun 2023 824th RockOfStone 685 126 1ms 30 Jul 2022 825th lynn 684 38 39ms 22 Jul 2022 826th m-tkach 🇺🇦 684 90 530ms 21 Jan 2024 827th 0e4ef622 683 101 11ms 21 Jun 2022 827th bricknellj 683 101 15ms 22 Jun 2024 827th blaztoma 🇱🇹 683 101 11ms 8 Mar 2026 827th firegene 🇮🇪 683 101 10ms 12 days ago 831st DialFrost 🇸🇬 682 90 138ms 3 Nov 2024 832nd janbehrens 🇩🇪 682 155 403ms 23 Jun 2023 833rd IlkkaTakala 682 162 67ms 1 Dec 2023 834th error256 680 66 39ms 8 May 2025 835th MeWhenI 🇻🇦 680 81 375ms 28 Jan 2023 836th a6166231 🇨🇳 680 104 10ms 29 May 2025 837th DialFrost 🇸🇬 679 84 5ms 14 Aug 2024 838th bumchen 678 163 66ms 6 Apr 2023 839th bizy-coder 677 91 410ms 1 Apr 2024 839th MeWhenI 🇻🇦 677 91 489ms 24 May 2024 839th AlephSquirrel 677 91 496ms 3 Jul 2024 839th CaedenHarper 🇨🇦 677 91 505ms 30 Nov 2025 843rd MeWhenI 🇻🇦 677 346 12ms 28 Aug 2023 844th gnuvince 676 45 2ms 29 Jun 2025 845th b10011 🇫🇮 676 102 10ms 14 Jan 2023 845th bzijlema 🇳🇱 676 102 10ms 15 Oct 2024 845th moustave 676 102 11ms 25 Jun 2025 845th FoxInTheClouds 676 102 11ms 20 Feb 2026 845th edsrzf 🇳🇿 676 102 10ms 4 Mar 2026 845th madex 🇩🇪 676 102 10ms 15 Mar 2026 845th Emutis 🇱🇹 676 102 11ms 1 Apr 2026 845th scpchicken 🇵🇼 676 102 10ms 17 days ago 845th BrunoVisnadi 🇧🇷 676 102 10ms 16 days ago 845th vang1ong7ang 🇦🇶 676 102 10ms 6 days ago 855th HumanoidCPU 676 136 1ms 4 Mar 2025 856th Shanethegamer 🇺🇸 675 99 89ms 12 Dec 2022 857th fabianrieder 675 114 473ms 6 Apr 2023 858th fantaize 675 179 161ms 10 Mar 2026 859th prestosilver 🇺🇸 674 164 71ms 23 Mar 2026 860th jacobly0 🇺🇸 674 193 46ms 18 Sep 2025 861st MeWhenI 🇻🇦 674 199 25ms 2 Oct 2024 862nd alexsave 673 105 9ms 8 Nov 2024 862nd acollett89 673 105 10ms 1 Aug 2025 862nd LordSir101 673 105 10ms 16 Aug 2025 865th MeWhenI 🇻🇦 672 246 8ms 30 Nov 2023 866th violeta-desantis 671 137 2ms 27 Sep 2023 867th stefangimmillaro 670 67 36ms 26 Dec 2024 868th inventshah 670 92 557ms 21 Jan 2024 869th janbehrens 🇩🇪 670 103 11ms 23 Jun 2023 869th orthoplex 🇨🇽 670 103 10ms 25 Nov 2023 869th abc7-12 670 103 10ms 26 Jun 2024 869th Lv0Sys 🇵🇱 670 103 10ms 6 Dec 2025 869th FortuiteMan 🇫🇷 670 103 14ms 18 Dec 2025 874th msbranicky 670 165 65ms 20 Aug 2023 874th Herbert00709 🇵🇱 670 165 64ms 15 Mar 2026 876th SirBogman 🇺🇸 669 59 32ms 8 Sep 2022 877th janbehrens 🇩🇪 669 115 442ms 23 Jun 2023 878th albanian-laundromat 🇺🇸 669 350 12ms 27 days ago 879th SirBogman 🇺🇸 667 39 42ms 4 Oct 2022 880th zakariamouhid 667 106 9ms 14 May 2023 881st SirBogman 🇺🇸 666 150 38ms 4 Dec 2022 882nd varhammer 🇷🇺 666 152 7ms 7 Nov 2024 883rd bac0id 665 159 393ms 26 Sep 2023 884th msbranicky 664 261 1,713ms 15 days ago 885th swbbl 663 83 281ms 5 Feb 2022 885th Feniske 🇫🇷 663 83 256ms 8 Aug 2022 887th Shanethegamer 🇺🇸 663 86 4ms 14 Aug 2024 888th VictorFordham 663 104 10ms 20 Feb 2023 888th Alex-x90 🇺🇸 663 104 10ms 3 Aug 2023 888th mathisfun271 663 104 11ms 5 Feb 2024 888th EnTerr 663 104 10ms 8 Sep 2024 888th KasperKivimaeki 🇫🇮 663 104 11ms 11 Jul 2025 888th phSHARP 663 104 11ms 2 Apr 2026 894th roavin 663 116 417ms 23 Jun 2022 894th hamhub7 663 116 424ms 9 Aug 2022 894th bac0id 663 116 436ms 22 Sep 2023 894th CaedenHarper 🇨🇦 663 116 430ms 16 Oct 2025 898th NewDefectus 🇮🇱 662 46 2ms 14 Jan 2022 899th BloodStormKnight 661 107 12ms 15 Oct 2022 899th LukeBridges 🇬🇧 661 107 13ms 8 Nov 2022 First Prev 801–900 of 1,635 Next Last