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 NFA Simulator 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 NFA Simulator 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 826th MeWhenI 🇻🇦 533 208 100ms 16 Oct 2022 827th neel11235813 531 125 480ms 17 Mar 2024 828th KatieLG 🇬🇧 531 470 1,624ms 13 days ago 829th IlkkaTakala 530 264 2,280ms 20 Dec 2023 830th codewrite 🇬🇧 530 345 278ms 16 Jun 2025 831st MichalMarsalek 🇨🇿 529 142 17ms 14 Feb 2022 831st marcin7Cd 529 142 17ms 20 Feb 2022 833rd MeWhenI 🇻🇦 528 317 35ms 6 Jun 2023 834th varhammer 🇷🇺 526 196 6ms 13 Dec 2023 835th janbehrens 🇩🇪 525 128 1,460ms 23 Feb 2022 836th SniperSmiley 🇺🇸 525 143 15ms 8 Jul 2022 836th Europe2048 525 143 22ms 22 Oct 2024 836th moustave 525 143 10ms 7 Apr 2025 839th MeWhenI 🇻🇦 523 139 759ms 15 Sep 2025 840th randolchance 522 144 17ms 4 Jan 2024 840th roupiq 🇵🇱 522 144 15ms 1 Mar 2024 840th robin-scragg 522 144 16ms 22 Aug 2025 840th Deppyforce 522 144 17ms 25 days ago 844th warmCabin 522 223 2ms 15 Apr 2022 845th Shanethegamer 🇺🇸 520 224 2ms 28 May 2025 846th MeWhenI 🇻🇦 520 246 350ms 27 Jul 2024 847th postie77 520 263 326ms 19 May 2023 848th MeWhenI 🇻🇦 519 255 165ms 13 Feb 2022 849th ovs-code 🇩🇪 519 398 13ms 8 Jul 2024 850th LeeCamp 518 145 17ms 14 Feb 2022 850th hellwue 518 145 11ms 7 Feb 2023 850th adamnielson42 🇺🇸 518 145 26ms 8 Oct 2024 850th Mabeloid 🇳🇴 518 145 24ms 4 May 2025 850th te-chnical 518 145 14ms 9 Jul 2025 855th DialFrost 🇸🇬 517 77 36ms 25 Dec 2024 856th karhuthebear 514 146 17ms 6 May 2022 856th Bonjour27891 🇻🇳 514 146 10ms 17 Jul 2022 856th Player01osu 514 146 11ms 28 Oct 2023 859th nephila-nacrea 🇬🇧 513 79 6ms 20 Feb 2022 860th Bodo171 511 147 17ms 7 Dec 2022 860th vgamula 🇺🇦 511 147 18ms 6 Nov 2023 860th croc54 511 147 15ms 27 Jan 2025 863rd Sciman101 510 192 2ms 27 Mar 2025 864th error256 509 51 4ms 6 May 2024 865th MeWhenI 🇻🇦 509 367 212ms 15 Feb 2022 866th davecame 507 148 30ms 18 Sep 2023 867th dokutan 507 193 2ms 13 Jan 2025 868th rucin93 🇵🇱 504 79 50ms 31 May 2025 869th HumanoidCPU 503 132 372ms 29 Sep 2024 870th namcartoon06 503 278 2,239ms 30 Jun 2023 871st MeWhenI 🇻🇦 503 370 28ms 14 Feb 2022 872nd adamnielson42 🇺🇸 502 146 9ms 2 Jun 2023 873rd sleepyStick 501 150 16ms 15 Jul 2022 873rd galloj 🇨🇿 501 150 17ms 9 Jan 2023 873rd cingulataluke 501 150 10ms 27 Aug 2023 873rd CutSandstone 501 150 17ms 8 Jul 2024 877th KatieLG 🇬🇧 501 365 350ms 1 Oct 2022 878th MeWhenI 🇻🇦 500 117 140ms 3 Aug 2024 879th msbranicky 499 267 3ms 12 Aug 2023 880th jacklynnepenick 497 151 15ms 15 Feb 2022 880th ssbhatt4321 497 151 18ms 11 Jun 2023 880th thienudomsrirungruang 497 151 18ms 16 Apr 2024 880th 051 🇸🇬 497 151 15ms 1 Aug 2024 880th mishak-sys 497 151 26ms 24 Feb 2025 885th MeWhenI 🇻🇦 497 168 4ms 28 May 2023 886th nyoshe 497 234 2ms 4 Jul 2023 887th MaxElf999 496 321 324ms 20 Aug 2024 888th edsrzf 🇳🇿 495 160 143ms 25 days ago 889th MeWhenI 🇻🇦 495 303 46ms 6 Sep 2022 890th bstrat 494 70 3ms 29 May 2024 891st TheBlupper 494 152 15ms 8 Nov 2022 891st yokasuretsu 494 152 15ms 14 Jan 2025 891st islptng 494 152 18ms 14 Oct 2025 894th MeWhenI 🇻🇦 493 236 2ms 25 Aug 2023 894th keelimeguy 🇺🇸 493 236 2ms 5 Nov 2023 896th hjcafaroUC 491 153 15ms 20 Aug 2022 896th LogicalJoe 491 153 10ms 29 Nov 2022 898th emplv 🇱🇻 491 170 4ms 30 Apr 2024 899th adamnielson42 🇺🇸 490 58 5ms 10 Jan 2024 900th dokutan 490 232 42ms 26 Aug 2024 First Prev 826–900 of 1,141 Next Last