Reverse Polish Notation 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 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 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 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial 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 05AB1E ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala 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 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel 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 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 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 601st janbehrens 🇩🇪 663 206 329ms 26 Feb 2022 602nd oeb25 663 282 207ms 16 May 2022 603rd Shanethegamer 🇺🇸 661 122 7ms 12 Apr 2024 604th two-bad 🇬🇧 660 111 9ms 25 Feb 2024 605th billings7 🇬🇧 660 207 334ms 16 Apr 2022 606th jmerle 🇳🇱 659 114 16ms 15 Feb 2023 607th edsrzf 🇳🇿 659 182 113ms 12 days ago 608th jgbaldwinbrown 658 177 2ms 15 Jun 2022 609th m-tkach 🇺🇦 657 101 417ms 21 Jan 2024 610th edsrzf 🇳🇿 657 282 5ms 20 Feb 2025 611th rniii 654 61 35ms 15 Sep 2023 611th olleicua 🇺🇸 654 61 36ms 6 Jan 2024 611th anter69 🇭🇺 654 61 57ms 2 Apr 2024 611th xsot 🇸🇬 654 61 38ms 23 Apr 2025 611th beirigo 🇧🇷 654 61 34ms 17 Oct 2025 616th CatsAreFluffy 654 178 2ms 24 Feb 2023 617th Salutations45 653 96 2ms 22 Jan 2025 618th lynn 653 115 16ms 12 Feb 2022 618th Kacarott 🇦🇺 653 115 559ms 4 Feb 2025 620th MeWhenI 🇻🇦 653 204 2ms 11 Sep 2022 621st jerrandolph 653 280 266ms 19 Dec 2023 622nd Florian-Mt 653 286 288ms 15 Jul 2024 623rd albanian-laundromat 652 40 4ms 3 days ago 624th UnderKoen 🇳🇱 652 284 12ms 26 Aug 2025 625th TehFlaminTaco 649 113 28ms 10 Nov 2022 626th Shanethegamer 🇺🇸 648 151 19ms 14 Aug 2024 627th thehylian 647 116 15ms 14 Jan 2023 627th zacjl 647 116 16ms 20 Apr 2023 629th CatsAreFluffy 646 205 142ms 31 Mar 2023 630th SirBogman 🇺🇸 646 283 41ms 31 Dec 2023 631st CaedenHarper 🇨🇦 645 212 394ms 17 Oct 2025 632nd nwellnhof 🇩🇪 643 62 34ms 4 Jun 2022 632nd KL-Lru 643 62 34ms 29 Dec 2022 632nd Natanaelel 🇸🇪 643 62 34ms 9 Dec 2023 632nd KatieLG 🇬🇧 643 62 38ms 2 Oct 2025 636th not-a-pokemon 643 181 1ms 5 Jul 2025 637th brimstonetrader 643 206 148ms 21 Jan 2024 638th betaveros 642 117 16ms 31 Dec 2022 638th DayDun 🇸🇪 642 117 21ms 22 Jan 2023 638th KasperKivimaeki 🇫🇮 642 117 14ms 1 Jul 2025 638th bzijlema 🇳🇱 642 117 16ms 12 Nov 2025 642nd ovs-code 🇩🇪 640 105 929ms 27 Oct 2023 643rd jupj 🇫🇮 640 182 2ms 16 Sep 2022 643rd jared-hughes 640 182 2ms 9 Jan 2023 645th Yewzir 🇧🇪 639 211 492ms 9 Feb 2023 646th MiffOttah 639 214 407ms 28 Nov 2024 647th Florian-Mt 637 115 10ms 27 Oct 2023 648th DialFrost 🇸🇬 637 287 258ms 29 May 2025 649th IISResetMe 636 91 364ms 16 days ago 650th bizy-coder 636 118 38ms 6 Aug 2023 650th Rubiksmath 636 118 40ms 7 Aug 2023 650th StefanHabel 🇨🇦 636 118 15ms 4 Sep 2023 653rd NickTheEASDude 🇺🇸 636 154 2ms 18 Sep 2024 654th edsrzf 🇳🇿 634 175 101ms 10 Jun 2025 655th jared-hughes 634 221 2,349ms 9 Jan 2023 656th Frowny 631 119 179ms 13 Feb 2022 656th prplz 🇦🇺 631 119 17ms 13 Feb 2022 656th bricknellj 631 119 20ms 14 Feb 2023 656th edsrzf 🇳🇿 631 119 22ms 4 Oct 2025 656th Natanaelel 🇸🇪 631 119 16ms 13 Nov 2025 661st GolfingSuccess 🇬🇷 631 163 120ms 29 Jul 2025 662nd emgordon154 629 93 120ms 7 Aug 2024 663rd Yewzir 🇧🇪 629 397 2,450ms 27 days ago 664th stefangimmillaro 628 133 5ms 2 Jul 2023 665th dokutan 627 190 141ms 12 Jul 2024 666th TobyBoyne 🇬🇧 626 120 16ms 18 Feb 2022 666th OllieBoyne 🇬🇧 626 120 15ms 18 Feb 2022 666th petroselo 626 120 190ms 12 Apr 2022 666th inventshah 626 120 15ms 15 Nov 2022 666th CaedenHarper 🇨🇦 626 120 17ms 27 Dec 2024 671st JRaspass 🇬🇧 626 292 299ms 18 May 2022 672nd SirBogman 🇺🇸 625 92 34ms 23 Apr 2022 673rd ChiefChippy2 623 64 35ms 12 Feb 2022 673rd GrayJoKing 🇦🇺 623 64 35ms 13 Feb 2022 675th MeWhenI 🇻🇦 623 108 341ms 15 Feb 2023 First Prev 601–675 of 1,146 Next Last