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 501st mtirado1 799 108 2ms 6 May 2023 502nd Shanethegamer 🇺🇸 799 168 25ms 28 Apr 2022 503rd edsrzf 🇳🇿 798 114 7ms 22 Aug 2025 504th MeWhenI 🇻🇦 797 105 7ms 9 May 2024 505th typeswitch-dev 🇵🇹 797 121 8ms 14 Aug 2023 506th emgordon154 797 125 7ms 6 Mar 2026 507th kg583 🇺🇸 797 137 37ms 16 days ago 508th Shanethegamer 🇺🇸 796 84 81ms 9 Jun 2022 509th adyache 🇺🇸 796 91 9ms 2 Aug 2023 510th emgordon154 796 234 1,200ms 18 Apr 2025 510th error256 796 234 1,209ms 8 Feb 2026 512th h3ra993huskp 🇯🇵 795 133 420ms 30 Nov 2025 513th stefangimmillaro 795 152 151ms 28 Oct 2023 514th DialFrost 🇸🇬 794 72 749ms 4 Sep 2025 515th igmcdowell 794 89 12ms 24 Feb 2022 515th inventshah 794 89 13ms 21 Jun 2022 515th olleicua 🇺🇸 794 89 11ms 3 Feb 2024 515th kpal81xd 794 89 10ms 15 Sep 2024 515th KatieLG 🇬🇧 794 89 10ms 5 Oct 2025 520th gitbedd 🇬🇧 793 87 11ms 10 Jan 2022 520th yzhs 🇩🇪 793 87 12ms 21 Mar 2022 520th CheeseCake628 🇳🇴 793 87 11ms 16 Feb 2023 520th HumanoidCPU 793 87 10ms 2 Mar 2025 524th MeWhenI 🇻🇦 793 116 2ms 5 Jul 2024 525th Shanethegamer 🇺🇸 791 115 399ms 21 Apr 2022 526th ovs-code 🇩🇪 790 153 240ms 21 Jun 2023 527th KrausRaus 🇺🇸 789 106 5ms 11 Nov 2023 528th Steffan153 🇫🇮 787 57 70ms 29 Aug 2024 528th pardouin 🇫🇷 787 57 66ms 2 Sep 2025 530th prplz 🇦🇺 787 70 396ms 19 Jan 2022 530th SirBogman 🇺🇸 787 70 219ms 19 May 2022 532nd sean-niemann 🇺🇸 787 127 40ms 1 Dec 2023 533rd Lydxn 🇨🇦 786 53 4ms 27 Feb 2023 534th ovs-code 🇩🇪 786 85 85ms 27 May 2024 535th m-tkach 🇺🇦 786 117 1ms 11 Jan 2022 535th prestosilver 🇺🇸 786 117 2ms 16 Dec 2025 537th weliveinhell 🇭🇹 785 90 10ms 11 Jan 2024 538th tomh1012 785 98 468ms 31 Jan 2022 538th pkim 785 98 479ms 6 Apr 2023 538th danielxbauer 785 98 472ms 6 Apr 2023 538th meinsiedler 785 98 482ms 6 Apr 2023 538th postie77 785 98 469ms 8 May 2023 538th arcpolaris 785 98 447ms 22 days ago 544th lynn 785 154 164ms 11 Mar 2022 544th The3gs 785 154 168ms 18 Aug 2023 546th prestosilver 🇺🇸 784 116 400ms 8 days ago 547th LHLaurini 🇧🇷 784 141 59ms 17 Jul 2024 548th Shanethegamer 🇺🇸 783 90 2,665ms 28 Oct 2024 549th DialFrost 🇸🇬 783 166 44ms 7 May 2025 550th Salutations45 782 66 2ms 2 Jan 2025 551st GrayJoKing 🇦🇺 781 93 70ms 9 Dec 2023 552nd dokutan 780 79 382ms 15 Aug 2024 552nd Babafaba 780 79 483ms 7 Nov 2025 554th DialFrost 🇸🇬 780 113 151ms 24 May 2025 555th MeWhenI 🇻🇦 780 137 2ms 12 Sep 2022 556th edsrzf 🇳🇿 780 155 289ms 23 Mar 2026 557th imperfect-fourth 780 170 328ms 16 Mar 2026 558th sean-niemann 🇺🇸 779 118 1ms 3 Feb 2024 559th edsrzf 🇳🇿 779 133 1,541ms 26 Apr 2025 560th msbranicky 778 112 2ms 10 Oct 2023 561st AlephSquirrel 778 130 6ms 21 Oct 2024 562nd albanian-laundromat 🇺🇸 778 167 48ms 19 Mar 2026 563rd adamnielson42 🇺🇸 777 91 10ms 26 Apr 2023 563rd luuumine 🇫🇷 777 91 10ms 12 Nov 2025 565th Skleni 777 99 472ms 6 Apr 2023 566th MichalMarsalek 🇨🇿 777 117 415ms 21 Apr 2022 567th hellwue 775 89 12ms 8 Feb 2023 567th elgan65536 🇺🇸 775 89 18ms 29 Mar 2024 567th AdamMorris377 775 89 11ms 29 Jul 2024 567th RaBa21 🇭🇺 775 89 20ms 19 Jul 2025 571st andersk 🇺🇸 775 156 244ms 30 Oct 2022 571st emgordon154 775 156 239ms 14 Mar 2025 573rd xsot 🇸🇬 774 58 38ms 6 Jul 2025 573rd sean-niemann 🇺🇸 774 58 38ms 3 Aug 2025 575th DialFrost 🇸🇬 774 91 2,658ms 25 Oct 2024 576th GolfingSuccess 🇬🇷 774 108 5ms 4 hours ago 577th MeWhenI 🇻🇦 774 224 1,712ms 11 days ago 578th LHLaurini 🇧🇷 773 119 1ms 17 Jul 2024 578th solisolu 773 119 1ms 25 Nov 2025 580th DialFrost 🇸🇬 773 241 1,206ms 18 Apr 2025 581st error256 772 74 804ms 13 Feb 2026 582nd primo-ppcg 🇹🇭 772 131 7ms 20 Jan 2023 583rd nwellnhof 🇩🇪 771 54 5ms 22 May 2022 584th clockworknazo 771 85 4ms 25 Mar 2023 585th call23re 771 112 2ms 12 Jan 2022 586th primo-ppcg 🇹🇭 771 118 383ms 9 Apr 2022 587th strout 771 145 148ms 15 Aug 2022 588th Shanethegamer 🇺🇸 770 157 151ms 8 Oct 2022 589th scpchicken 🇵🇼 769 55 145ms 13 Mar 2022 590th MeWhenI 🇻🇦 769 130 41ms 30 Dec 2025 591st maxpelic 🇺🇸 768 92 11ms 5 Jul 2022 591st astdefu 768 92 11ms 10 Dec 2022 591st two-bad 🇬🇧 768 92 11ms 25 Feb 2024 591st dokutan 768 92 10ms 15 Jun 2025 595th Steffan153 🇫🇮 768 132 14ms 5 Jul 2024 596th sjrct 767 90 10ms 5 Aug 2024 596th webmiche 767 90 13ms 3 Nov 2025 598th prestosilver 🇺🇸 767 226 1,650ms 14 days ago 599th Shanethegamer 🇺🇸 766 76 426ms 12 Oct 2022 599th stefangimmillaro 766 76 1,584ms 8 Jan 2023 First Prev 501–600 of 1,633 Next Last