All holes in Ruby in bytes. 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 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 Maze Medal Tally 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 Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Mandelbrot Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle 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 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 Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 Maze Medal Tally 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 Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Mandelbrot Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Holes Points Bytes Time 601st Marcel-Brouette 1 563 48 26 Aug 2018 602nd ashtraypettingzoo 🇺🇸 1 556 45 16 Feb 2023 602nd hacker112 🇸🇪 1 556 45 1 Jul 2024 604th alexkurowski 1 551 49 8 Nov 2017 605th ngocbd 🇻🇳 1 549 71 31 Aug 2021 606th BuoyantPigeon 1 543 92 10 Aug 2019 607th jthorup84 1 541 109 22 Nov 2017 608th sstadick 1 540 50 24 Jan 2018 609th kenakingkong 1 540 63 4 May 2021 610th Import-Meow 2 540 330 31 May 2022 611th Schmitt-Very-Cool 3 539 1,434 18 Jul 2024 612th JesseNoEyes 🇺🇸 1 532 47 26 Sep 2024 613th Krtecik 1 529 51 9 Feb 2024 614th PotatoSaladOverlord 1 526 95 18 Jan 2024 615th hyvyys 1 525 59 22 Sep 2020 616th vcxl-l 1 522 67 21 Aug 2024 617th sech1p 🇵🇱 1 521 48 30 Dec 2020 617th martinnorling 🇸🇪 1 521 48 6 Feb 2022 617th eiburns 1 521 48 7 Sep 2023 617th SwordF-Official 1 521 48 4 days ago 621st serene 1 515 97 12 May 2023 622nd jansekulowicz 1 512 82 8 May 2022 623rd b-paul 1 510 49 25 Dec 2020 624th hiracky16 1 508 61 15 Dec 2019 625th juntuu 1 508 65 24 Mar 2019 626th gotbadger 1 498 233 21 Nov 2024 627th takafan 🇨🇳 1 497 155 13 Sep 2023 628th ze-h 🇺🇸 1 492 63 18 May 2022 629th andymac-2 1 492 195 7 Jul 2024 630th DNNX 1 491 55 3 Jan 2020 631st kittrz9 5 491 4,212 7 Dec 2017 632nd AntoineBlondon 1 490 51 10 Jul 2024 632nd Mikey-Beep 🇬🇧 1 490 51 25 Dec 2024 634th Dominoscompute 1 490 102 18 Jul 2022 635th namelessiw 1 485 103 28 Jul 2023 636th ferblape 1 483 116 26 Dec 2020 637th LHLaurini 🇧🇷 1 483 528 14 Jul 2024 638th gpolumbo-broad 1 481 52 14 Mar 2019 639th ArturLukianov 1 481 104 17 Dec 2020 639th abbasmoosajee07 1 481 104 12 days ago 641st Ripick 1 477 65 17 Mar 2024 642nd Adix-null 🇱🇹 2 477 1,065 1 Aug 2023 643rd j-Ewan 1 476 105 15 Feb 2022 644th axpepper 1 473 93 29 Sep 2018 645th GWStuart 2 473 1,124 15 Sep 2023 646th lyqio 1 472 89 4 Dec 2024 647th pengu1n-master 1 472 106 11 Dec 2021 647th copoer 1 472 106 28 Feb 2023 647th keelimeguy 🇺🇸 1 472 106 24 Oct 2023 650th Drew-j-Smith 1 467 75 11 Jan 2023 651st johnreitano 1 467 422 21 Dec 2022 652nd MaxElf999 1 463 67 14 Dec 2022 653rd kkittlive 1 463 108 5 Oct 2020 654th Msleizak 🇫🇷 3 460 2,187 14 Dec 2023 655th twocatsinatrenchcoat 1 459 109 25 Apr 2022 656th Smetalo 1 458 72 25 Aug 2022 657th Lucca-mito 1 446 112 18 Apr 2018 658th Nekall 1 444 126 2 Jun 2022 659th markturner 1 440 75 30 Nov 2020 660th sm1lko 1 439 57 14 Dec 2022 661st jiaminglimjm 🇲🇾 1 434 113 12 Dec 2019 662nd hrubymar10 1 427 117 18 Feb 2024 663rd baseconnect-akizuki 1 415 118 8 Feb 2023 664th Phil-Bergeman 1 410 122 27 Mar 2018 664th MarkStockwellZA 1 410 122 7 Jan 2022 666th mosegontar 1 410 139 6 Jul 2022 667th hankhng 1 407 123 7 Oct 2020 668th 104210 1 404 104 19 May 2022 669th RyanRogan 1 403 77 15 Apr 2020 670th KyanJeuring 1 400 125 7 Sep 2022 671st kurkale6ka 4 400 2,993 29 Dec 2023 672nd Sticky-Bits 1 394 127 19 Apr 2019 672nd SniperSmiley 🇺🇸 1 394 127 3 Aug 2022 674th RoscoeDaWah 🇬🇧 1 391 128 22 Mar 2023 675th bobbysq 1 390 100 30 May 2023 Prev 601–675 of 771 Next