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    The Gray Code Decoder and Gray Code Encoder holes will go live in approximately . Why not try and solve them ahead of time?

    # Hole Solutions Golfers Per Golfer Avg Time
    1st Fizz Buzz 26,836 6,601 4.07
    2nd Fibonacci 19,713 3,881 5.08
    3rd Quine 11,601 1,514 7.66
    4th Prime Numbers 11,043 2,393 4.61
    5th Divisors 11,031 2,816 3.92
    6th Evil Numbers 10,283 2,444 4.21
    7th Leap Years 9,736 2,147 4.53
    8th Abundant Numbers 8,837 2,117 4.17
    9th π 8,509 1,175 7.24
    10th Niven Numbers 8,474 1,685 5.03
    11th Odious Numbers 8,309 1,768 4.70
    12th 12 Days of Christmas 8,139 2,392 3.40
    13th 99 Bottles of Beer 7,855 2,452 3.20
    14th Collatz 7,268 1,476 4.92
    15th Foo Fizz Buzz Bar 6,943 1,614 4.30
    16th 𝑒 6,911 794 8.70
    17th Tutorial 6,865 711 9.66
    18th Pernicious Numbers 6,816 1,135 6.01
    19th Happy Numbers 6,425 1,300 4.94
    20th Emirp Numbers 6,395 1,434 4.46
    21st Christmas Trees 6,334 1,609 3.94
    22nd Prime Numbers (Long) 6,220 1,031 6.03
    23rd Pascal’s Triangle 6,112 1,263 4.84
    24th √2 5,826 851 6.85
    25th Evil Numbers (Long) 5,664 1,022 5.54
    26th Abundant Numbers (Long) 5,523 1,007 5.48
    27th Pangram Grep 5,395 1,090 4.95
    28th Odious Numbers (Long) 5,152 826 6.24
    29th Diamonds 5,107 1,107 4.61
    30th Niven Numbers (Long) 5,103 808 6.32
    31st φ 5,013 630 7.96
    32nd λ 5,003 446 11.22
    33rd Tongue-twisters 4,816 894 5.39
    34th τ 4,729 589 8.03
    35th ASCII Table 4,650 930 5.00
    36th Arithmetic Numbers 4,238 808 5.25
    37th Look and Say 4,200 752 5.59
    38th Happy Numbers (Long) 4,193 648 6.47
    39th Sierpiński Triangle 4,186 737 5.68
    40th Catalan Numbers 4,118 638 6.45
    41st Recamán 4,099 704 5.82
    42nd Fractions 4,001 991 4.04
    43rd Kolakoski Sequence 3,866 524 7.38
    44th Arabic to Roman 3,820 1,040 3.67
    45th Leyland Numbers 3,809 650 5.86
    46th Ordinal Numbers 3,797 918 4.14
    47th Pernicious Numbers (Long) 3,757 496 7.57
    48th Van Eck Sequence 3,730 566 6.59
    49th ln 2 3,663 395 9.27
    50th Catalan’s Constant 3,570 382 9.35
    51st Kolakoski Constant 3,570 324 11.02
    52nd Number Spiral 3,556 509 6.99
    53rd Emirp Numbers (Long) 3,528 564 6.26
    54th Cubes 3,414 681 5.01
    55th γ 3,403 258 13.19
    56th Inventory Sequence 3,358 398 8.44
    57th Rule 110 3,330 571 5.83
    58th ISBN 3,236 686 4.72
    59th Lucky Numbers 3,163 432 7.32
    60th Smith Numbers 3,156 431 7.32
    61st Farey Sequence 3,082 371 8.31
    62nd Vampire Numbers 3,040 481 6.32
    63rd Roman to Arabic 3,023 655 4.62
    64th Day of Week 3,018 658 4.59
    65th Ascending Primes 2,994 450 6.65
    66th Seven Segment 2,969 814 3.65
    67th Factorial Factorisation 2,957 362 8.17
    68th Tower of Hanoi 2,941 210 14.00
    69th brainfuck 2,905 816 3.56
    70th Rijndael S-box 2,855 318 8.98
    71st United States 2,852 759 3.76
    72nd Intersection 2,722 664 4.10
    73rd Emojify 2,688 717 3.75
    74th Arrows 2,657 664 4.00
    75th CSS Colors 2,639 623 4.24
    76th Gijswijt’s Sequence 2,403 259 9.28
    77th Partition Numbers 2,395 226 10.60
    78th Levenshtein Distance 2,377 416 5.71
    79th Reverse Polish Notation 2,376 517 4.60
    80th Rock-paper-scissors-Spock-lizard 2,271 584 3.89
    81st 24 Game 2,225 295 7.54
    82nd Kaprekar Numbers 2,219 236 9.40
    83rd Spelling Numbers 2,166 540 4.01
    84th ROT13 2,148 400 5.37
    85th N Queens 2,127 233 9.13
    86th Mandelbrot 2,071 206 10.05
    87th Trinomial Triangle 2,055 224 9.17
    88th Morse Encoder 2,012 551 3.65
    89th Transpose Sentence 1,903 375 5.07
    90th Card Number Validation 1,831 404 4.53
    91st Morse Decoder 1,795 478 3.76
    92nd Polyominoes 1,769 167 10.59
    93rd Game of Life 1,716 385 4.46
    94th Forsyth–Edwards Notation 1,712 339 5.05
    95th Lucky Tickets 1,705 269 6.34
    96th Hexdump 1,703 358 4.76
    97th Hilbert Curve 1,671 164 10.19
    98th PalindromemordnilaP 1,535 313 4.90
    99th Tic-tac-toe 1,515 303 5.00
    100th Jacobi Symbol 1,467 263 5.58
    101st Zeckendorf Representation 1,465 237 6.18
    102nd Time Distance 1,383 333 4.15
    103rd Zodiac Signs 1,337 230 5.81
    104th Scrambled Sort 1,284 256 5.02
    105th Ten-pin Bowling 1,278 222 5.76
    106th Musical Chords 1,260 184 6.85
    107th Medal Tally 1,236 267 4.63
    108th Maze 1,221 235 5.20
    109th Proximity Grid 1,196 206 5.81
    110th Star Wars Opening Crawl 1,164 258 4.51
    111th Poker 1,145 266 4.30
    112th Sudoku 1,135 287 3.95
    113th Repeating Decimals 1,124 255 4.41
    114th DFA Simulator 1,045 209 5.00
    115th Billiards 1,016 181 5.61
    116th Gray Code Encoder 998 111 8.99
    117th Sudoku (Fill-in) 987 205 4.81
    118th Set 981 189 5.19
    119th QR Decoder 955 184 5.19
    120th Reversi 928 153 6.07
    121st SI Units 904 154 5.87
    122nd Semiprime Numbers 899 60 14.98
    123rd Sphenic Numbers 863 55 15.69
    124th Minesweeper 856 172 4.98
    125th Multitap Input 846 155 5.46
    126th Gray Code Decoder 804 103 7.81
    127th Continued Fractions 754 141 5.35
    128th Topological Sort 754 159 4.74
    129th Highly Composite Numbers 751 37 20.30
    130th Hexagonal Spiral 740 30 24.67
    131st Calendar 739 199 3.71
    132nd Star Wars GPT 728 160 4.55
    133rd Odd Polyomino Tiling 664 16 41.50
    134th Mahjong 658 122 5.39
    135th Apéry’s Constant 656 65 10.09
    136th Taxicab Numbers 635 52 12.21
    137th Polygon Triangulations 369 26 14.19
    138th Alphabetic Numbers 298 35 8.51
    139th Smooth Numbers 237 23 10.30
    140th Ellipse Perimeters 230 49 4.69
    141st Flags 206 22 9.36
    142nd Floyd-Steinberg Dithering 166 16 10.38
    143rd CSS Colors (Inverse) 124 29 4.28
    144th Snake 81 28 2.89
    145th Connect Four 59 21 2.81
    146th Rectangle Fill 39 12 3.25
    147th Binary Lambda Calculus 38 13 2.92
    148th p-adic Expansion 33 12 2.75
    149th CSS Grid 26 11 2.36
    150th Turtle 21 11 1.91
    151st Quadratic Formula 16 7 2.29
    152nd NFA Simulator 14 6 2.33
    153rd Crossword 6 2 3.00
    154th Numbrix 2 1 2.00
    155th QR Encoder 2 1 2.00