💎 Oldest diamonds (uncontested gold medals) in C in bytes. Achievements Cheevos Holes Languages Medals Miscellaneous Overall 💎 Diamond Deltas Most Tied 🥇 Golds Oldest 💎 Diamonds Oldest 🦄 Unicorns 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 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 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 All Languages ><> 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 All Bytes Chars Overall 💎 Diamond Deltas Most Tied 🥇 Golds Oldest 💎 Diamonds Oldest 🦄 Unicorns Scoring All Bytes Chars Language All ><> 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 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 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 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 # Golfer Hole Submitted 1st JayXon 🇺🇸 Morse Encoder 28 Aug 2021 2nd primo-ppcg 🇹🇭 Catalan’s Constant 20 Jan 2022 3rd JayXon 🇺🇸 Time Distance 16 Apr 2022 4th Lydxn 🇨🇦 Arrows 4 May 2022 5th primo-ppcg 🇹🇭 Jacobi Symbol 21 May 2022 6th Lydxn 🇨🇦 12 Days of Christmas 5 Jul 2022 7th Lydxn 🇨🇦 Leap Years 24 Nov 2022 8th nwellnhof 🇩🇪 Cubes 30 Nov 2022 9th CatsAreFluffy Maze 6 Jan 2023 10th JayXon 🇺🇸 Morse Decoder 21 Jan 2023 11th JayXon 🇺🇸 Ordinal Numbers 18 Feb 2023 12th JayXon 🇺🇸 QR Decoder 7 May 2023 13th ovs-code 🇩🇪 Vampire Numbers 9 Nov 2023 14th rhdqor213 Number Spiral 26 Nov 2023 15th saito-ta 🇯🇵 Lucky Tickets 9 Jan 2024 16th rhdqor213 Rule 110 31 Jan 2024 17th rhdqor213 Pascal’s Triangle 4 Feb 2024 18th ovs-code 🇩🇪 Arabic to Roman 13 Feb 2024 19th AdrienHache 🇫🇷 Pangram Grep 20 Mar 2024 20th Lydxn 🇨🇦 CSS Colors 22 Apr 2024 21st rhdqor213 Factorial Factorisation 28 Apr 2024 22nd ovs-code 🇩🇪 Look and Say 29 Apr 2024 23rd ovs-code 🇩🇪 Rock-paper-scissors-Spock-lizard 29 May 2024 24th ovs-code 🇩🇪 Proximity Grid 30 May 2024 25th ovs-code 🇩🇪 SI Units 31 May 2024 26th ovs-code 🇩🇪 Reverse Polish Notation 3 Jun 2024 27th AdrienHache 🇫🇷 Rijndael S-box 3 Jun 2024 28th ovs-code 🇩🇪 Hexdump 3 Jul 2024 29th ovs-code 🇩🇪 Levenshtein Distance 10 Jul 2024 30th ovs-code 🇩🇪 Kolakoski Constant 13 Jul 2024 31st ovs-code 🇩🇪 λ 14 Jul 2024 32nd rhdqor213 Inventory Sequence 22 Jul 2024 33rd JayXon 🇺🇸 Ten-pin Bowling 23 Jul 2024 34th ovs-code 🇩🇪 Sudoku (Fill-in) 27 Jul 2024 35th rhdqor213 Happy Numbers (Long) 29 Jul 2024 36th rhdqor213 Zodiac Signs 22 Aug 2024 37th JayXon 🇺🇸 PalindromemordnilaP 18 Sep 2024 38th HPWiz 🇳🇿 Abundant Numbers 27 Sep 2024 39th rhdqor213 Medal Tally 15 Nov 2024 40th KasperKivimaeki 🇫🇮 τ 18 Nov 2024 41st KasperKivimaeki 🇫🇮 π 18 Nov 2024 42nd KasperKivimaeki 🇫🇮 ln 2 19 Nov 2024 43rd rhdqor213 Intersection 11 Dec 2024 44th rhdqor213 Transpose Sentence 15 Dec 2024 45th rhdqor213 Leyland Numbers 17 Dec 2024 46th JayXon 🇺🇸 Tic-tac-toe 10 Feb 2025 47th KasperKivimaeki 🇫🇮 Seven Segment 15 Feb 2025 48th ovs-code 🇩🇪 Star Wars Opening Crawl 20 Feb 2025 49th KasperKivimaeki 🇫🇮 Spelling Numbers 17 Mar 2025 50th KasperKivimaeki 🇫🇮 DFA Simulator 18 Mar 2025 51st ovs-code 🇩🇪 Poker 24 Mar 2025 52nd inventshah United States 31 Mar 2025 53rd KasperKivimaeki 🇫🇮 brainfuck 15 Apr 2025 54th rhdqor213 Partition Numbers 18 Apr 2025 55th rhdqor213 Foo Fizz Buzz Bar 18 Apr 2025 56th rhdqor213 Gijswijt’s Sequence 3 May 2025 57th HPWiz 🇳🇿 Catalan Numbers 4 May 2025 58th JayXon 🇺🇸 Musical Chords 18 May 2025 59th saito-ta 🇯🇵 Mandelbrot 30 Jun 2025 60th rhdqor213 Kaprekar Numbers 22 Jul 2025 61st KasperKivimaeki 🇫🇮 Scrambled Sort 27 Jul 2025 62nd nwellnhof 🇩🇪 ROT13 28 Jul 2025 63rd saito-ta 🇯🇵 Star Wars GPT 1 Aug 2025 64th saito-ta 🇯🇵 Topological Sort 2 Aug 2025 65th KasperKivimaeki 🇫🇮 ASCII Table 19 Aug 2025 66th rhdqor213 Smith Numbers 26 Aug 2025 67th rhdqor213 Trinomial Triangle 5 Oct 2025 68th rucin93 🇵🇱 24 Game 12 Oct 2025 69th KasperKivimaeki 🇫🇮 Emojify 13 Oct 2025 70th KasperKivimaeki 🇫🇮 Polyominoes 19 Oct 2025 71st JayXon 🇺🇸 Forsyth–Edwards Notation 3 Nov 2025 72nd KasperKivimaeki 🇫🇮 Mahjong 6 Nov 2025 73rd KasperKivimaeki 🇫🇮 γ 18 Nov 2025 74th rhdqor213 Minesweeper 3 Dec 2025 75th rhdqor213 99 Bottles of Beer 8 Dec 2025 76th rhdqor213 Christmas Trees 8 Dec 2025 77th rhdqor213 Evil Numbers (Long) 8 Dec 2025 78th canissimia 🇦🇶 Hilbert Curve 9 Dec 2025 79th JayXon 🇺🇸 Tongue-twisters 9 Dec 2025 80th ovs-code 🇩🇪 N Queens 9 Dec 2025 1–80 of 88 Next Last