Christmas Trees in Ruby in bytes. 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) 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 NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab 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) 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 NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 1st radarek 🇵🇱 1,000 55 35ms 16 hours ago 2nd Lydxn 🇨🇦 982 56 39ms 4 May 2023 2nd pardouin 🇫🇷 982 56 37ms 1 Sep 2025 4th janlelis 965 57 41ms 5 Jan 2020 4th primo-ppcg 🇹🇭 965 57 35ms 3 Dec 2020 4th han-yan 965 57 37ms 12 Dec 2020 4th jaredcrystal 🇺🇸 965 57 38ms 14 Dec 2020 4th simonista 965 57 37ms 15 Dec 2020 4th roor0 965 57 36ms 18 Dec 2020 4th GrayJoKing 🇦🇺 965 57 37ms 18 Dec 2020 4th nwellnhof 🇩🇪 965 57 36ms 1 Oct 2021 4th sisyphus-ppcg 🇦🇺 965 57 37ms 4 Feb 2022 4th MeWhenI 🇻🇦 965 57 39ms 1 Jul 2022 4th OhmNomNom 965 57 35ms 20 Oct 2022 4th Steffan153 🇫🇮 965 57 37ms 20 Feb 2023 4th JayXon 🇺🇸 965 57 36ms 24 Apr 2023 4th Natanaelel 🇸🇪 965 57 35ms 22 Nov 2023 4th ovs-code 🇩🇪 965 57 36ms 8 Jul 2024 4th sean-niemann 🇺🇸 965 57 36ms 7 Aug 2025 4th blaztoma 🇱🇹 965 57 38ms 7 Mar 2026 21st maths22 🇺🇸 948 58 35ms 10 Dec 2020 21st jstanley0 948 58 36ms 12 Dec 2020 21st jbbarth 🇫🇷 948 58 37ms 9 Aug 2021 21st SirBogman 🇺🇸 948 58 40ms 15 Jan 2025 21st denkyuu1 948 58 37ms 22 Mar 2026 26th prplz 🇦🇺 932 59 37ms 28 Oct 2020 26th lynn 932 59 36ms 25 May 2022 26th stefangimmillaro 932 59 40ms 3 Feb 2023 26th D-MOVE 🇵🇭 932 59 37ms 6 Dec 2025 30th TFeld00 🇩🇰 917 60 37ms 7 Jun 2019 30th Irratix 🇳🇱 917 60 39ms 27 Jun 2022 30th jared-hughes 917 60 41ms 12 Sep 2022 30th Shanethegamer 🇺🇸 917 60 37ms 26 Mar 2024 30th DialFrost 🇸🇬 917 60 37ms 26 Jan 2026 30th Sxltry 917 60 36ms 14 Mar 2026 36th hiddicop 🇸🇪 902 61 37ms 22 Jan 2021 36th olivermrose 🇺🇸 902 61 38ms 7 Oct 2021 38th n1LS 887 62 35ms 2 Oct 2019 38th RowdyLemon 887 62 36ms 14 Dec 2020 38th liemvo 🇻🇳 887 62 35ms 7 May 2021 38th Lv0Sys 🇵🇱 887 62 43ms 29 Nov 2025 42nd brianlwatson 873 63 37ms 9 Dec 2020 42nd Waffle3z 873 63 37ms 21 Jan 2021 42nd NewDefectus 🇮🇱 873 63 35ms 10 Feb 2021 42nd emgordon154 873 63 35ms 17 Nov 2024 42nd olleicua 🇺🇸 873 63 37ms 13 Jun 2025 47th biinari 859 64 39ms 25 Mar 2018 47th Ardena 859 64 39ms 11 Dec 2020 47th 4hg 🇺🇸 859 64 38ms 8 Nov 2022 50th michaelbaudino 846 65 36ms 18 Oct 2020 50th anter69 🇭🇺 846 65 38ms 3 Aug 2021 50th badboj40 846 65 37ms 14 Feb 2023 50th dokutan 846 65 37ms 30 Apr 2024 50th kroolp 🇵🇱 846 65 38ms 14 Jul 2024 55th TheZwierzLF 🇵🇱 833 66 39ms 21 Dec 2025 56th takebackfr 821 67 37ms 7 Dec 2021 56th Andriamanitra 🇫🇮 821 67 39ms 21 Jul 2022 56th Haksell 🇦🇶 821 67 38ms 22 Feb 2023 56th snoozingnewt 🇨🇦 821 67 37ms 26 Jan 2026 60th acornellier 809 68 36ms 9 Dec 2018 60th tarotaro0 809 68 37ms 2 Oct 2019 60th aydamak 809 68 38ms 15 May 2024 63rd robymus 797 69 37ms 18 Sep 2018 63rd shraiwi 797 69 37ms 30 Sep 2019 63rd KatieLG 🇬🇧 797 69 38ms 10 Apr 2022 63rd FlyingPenguin223 797 69 36ms 2 Nov 2023 67th yzhs 🇩🇪 786 70 38ms 6 Sep 2020 67th james-logan 786 70 37ms 9 Dec 2020 67th aksyristos 786 70 41ms 27 days ago 70th dwayneparton 775 71 37ms 13 May 2020 71st yokasuretsu 753 73 37ms 16 Apr 2018 72nd LostSyntax21 🇬🇧 743 74 38ms 10 Sep 2024 73rd 0xddom 733 75 38ms 18 Dec 2019 74th snltd 724 76 37ms 14 Oct 2019 74th eggplants 🇯🇵 724 76 38ms 26 Nov 2020 74th madex 🇩🇪 724 76 37ms 20 days ago 77th proton 🇩🇪 714 77 36ms 9 Jun 2020 77th bstrautin 714 77 37ms 12 Jun 2020 77th annaproxy 714 77 38ms 22 Oct 2023 80th segiddins 696 79 37ms 24 Aug 2018 1–80 of 104 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