Collatz in Python in chars. 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 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 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 Calendar Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA 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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 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 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 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 Calendar Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 674th gabrielsqw 576 99 23ms 24 Oct 2023 674th sciencedjinn 576 99 16ms 8 Nov 2024 674th MrNiknoc 576 99 18ms 15 Jun 2025 679th OppositeShark 570 100 18ms 19 Jul 2022 679th NOS4A5I 570 100 17ms 10 Jan 2023 679th lomarbrick 570 100 19ms 16 May 2023 679th karlaacastro44 570 100 18ms 5 May 2025 683rd markus-rekdal 564 101 28ms 10 May 2022 683rd fraserli 🇦🇺 564 101 23ms 2 May 2023 683rd FCORMERAIS 564 101 18ms 6 Mar 2024 683rd yhm138 564 101 13ms 16 Feb 2025 683rd MinecraftFan69420 564 101 20ms 14 days ago 688th AndersH3 🇸🇪 559 102 14ms 17 May 2023 688th JulieGermainUNT 559 102 19ms 2 Apr 2025 690th rajlath 553 103 19ms 7 Jan 2023 690th mnurzia 553 103 17ms 12 Oct 2023 690th sqrteipi 553 103 21ms 2 Apr 2024 690th calum12345 553 103 20ms 26 Mar 2025 690th SectorCorruptor 553 103 26ms 14 Aug 2025 695th winigo3 548 104 24ms 8 Aug 2022 695th zt14427 548 104 17ms 30 Apr 2023 695th IoLimmer 548 104 16ms 24 Jul 2024 698th LordSir101 543 105 18ms 19 Jul 2022 698th tmanternach 543 105 19ms 24 Nov 2022 698th weber-hge 543 105 15ms 13 Jun 2023 698th Eugen-str 543 105 19ms 24 Oct 2023 702nd ms-tingliang 538 106 16ms 5 Aug 2022 702nd achilleasr 538 106 18ms 7 Nov 2022 702nd OleBrumm 538 106 19ms 8 Jan 2023 702nd AbhilashaTandon 538 106 19ms 19 Sep 2023 702nd sheeperino 🇮🇹 538 106 19ms 11 Oct 2024 707th phpboyscout 533 107 16ms 18 May 2023 707th DrPrettyman 533 107 15ms 5 Jul 2023 707th joseph-w0ng 533 107 14ms 5 Jul 2024 707th EnisEfe0 533 107 20ms 18 May 2025 711th landyrisbad 528 108 20ms 13 Nov 2022 711th cakular 528 108 25ms 17 May 2024 711th glassala 528 108 14ms 25 Oct 2024 711th StronkCheese2 528 108 19ms 2 days ago 715th tjefferson401 523 109 28ms 16 Sep 2022 715th ariesmarinus 523 109 15ms 21 Nov 2024 717th profJGermain 518 110 19ms 7 Feb 2024 717th JMMMMC 518 110 18ms 23 Oct 2024 717th jtb0362 518 110 19ms 10 May 2025 720th sagnik3 509 112 18ms 8 Aug 2022 720th craftablescience 509 112 17ms 19 Sep 2023 722nd kelseychristensen 504 113 19ms 2 Nov 2022 722nd ArmsTheLimited 504 113 14ms 1 Jun 2023 724th HunterC14 500 114 24ms 18 Oct 2024 725th jstechman 496 115 19ms 24 Feb 2024 725th dan422442 496 115 22ms 19 Oct 2024 727th keelanfh 491 116 14ms 20 Dec 2023 727th returnitynet 491 116 17ms 27 Jan 2025 727th EthanPatel01000101 491 116 17ms 25 days ago 730th gioto64 487 117 16ms 8 Dec 2022 730th WilfredSalmon 487 117 16ms 21 Oct 2023 732nd XianchengZ 483 118 19ms 18 Aug 2023 732nd brindak2005 483 118 16ms 2 May 2025 734th jmmographer 467 122 19ms 21 Oct 2023 734th RucatJ 467 122 18ms 8 Aug 2025 736th xbxbxb007 463 123 22ms 10 Jan 2024 737th kevinnaviapaiva 442 129 17ms 20 Feb 2025 738th AdrianN001 438 130 17ms 6 Aug 2023 739th wyatt-the-hump 435 131 17ms 24 Dec 2022 739th hotmanga 435 131 15ms 20 Oct 2023 739th Jordynar02 435 131 16ms 3 May 2025 742nd Zach10za 429 133 21ms 23 Jan 2024 743rd vtilde 425 134 18ms 8 Jan 2024 744th fig-apple 422 135 11ms 24 Jun 2023 745th S-Ruban 416 137 13ms 25 Feb 2023 746th FLOKI0421 410 139 16ms 4 May 2025 746th noahdorsch 410 139 18ms 5 May 2025 748th bartsowka2000 383 149 22ms 10 Jul 2023 749th KapelMeister 380 150 14ms 5 Sep 2025 750th sa1640 370 154 14ms 28 Apr 2025 First Prev 676–750 of 798 Next Last