{
  "active": true,
  "blurb": "C# is a modern, object-oriented language with lots of great features, such as type-inference and async/await. The tooling is excellent, and there is extensive, well-written documentation.",
  "exercises": [
    {
      "core": true,
      "difficulty": 1,
      "slug": "hello-world",
      "topics": [
        "strings"
      ],
      "unlocked_by": null,
      "uuid": "6c88f46b-5acb-4fae-a6ec-b48ae3f8168f"
    },
    {
      "core": false,
      "difficulty": 1,
      "slug": "reverse-string",
      "topics": [
        "strings"
      ],
      "unlocked_by": null,
      "uuid": "14395318-c7b9-11e7-abc4-cec278b6b50a"
    },
    {
      "core": true,
      "difficulty": 1,
      "slug": "leap",
      "topics": [
        "control_flow_if_else_statements",
        "integers"
      ],
      "unlocked_by": null,
      "uuid": "8ba15933-29a2-49b1-a9ce-70474bad3007"
    },
    {
      "core": true,
      "difficulty": 1,
      "slug": "bob",
      "topics": [
        "control_flow_if_else_statements",
        "strings"
      ],
      "unlocked_by": null,
      "uuid": "da00f894-dbc8-485e-adba-a79d5ebee3ad"
    },
    {
      "core": true,
      "difficulty": 1,
      "slug": "sum-of-multiples",
      "topics": [
        "arrays",
        "transforming"
      ],
      "unlocked_by": null,
      "uuid": "d985d4a9-1a2b-4bb1-ad08-961b8d36ee2e"
    },
    {
      "core": true,
      "difficulty": 2,
      "slug": "raindrops",
      "topics": [
        "filtering",
        "strings"
      ],
      "unlocked_by": null,
      "uuid": "29ae7f8e-a009-4175-9350-a8c684c89730"
    },
    {
      "core": true,
      "difficulty": 1,
      "slug": "two-fer",
      "topics": [
        "optional_values",
        "strings"
      ],
      "unlocked_by": null,
      "uuid": "57f02d0e-7b75-473b-892d-26a7d980c4ce"
    },
    {
      "core": true,
      "difficulty": 2,
      "slug": "nucleotide-count",
      "topics": [
        "dictionaries",
        "strings"
      ],
      "unlocked_by": null,
      "uuid": "caca1c6a-b998-431e-b6af-ca2d47b7708f"
    },
    {
      "core": true,
      "difficulty": 2,
      "slug": "accumulate",
      "topics": [
        "extension_methods",
        "sequences",
        "transforming"
      ],
      "unlocked_by": null,
      "uuid": "3c0563dc-665a-45b4-9b29-f133e235efd0"
    },
    {
      "core": true,
      "difficulty": 2,
      "slug": "grade-school",
      "topics": [
        "lists",
        "sorting"
      ],
      "unlocked_by": null,
      "uuid": "ec1cc254-8e66-40d0-87bf-971d54c541c4"
    },
    {
      "core": false,
      "difficulty": 2,
      "slug": "collatz-conjecture",
      "topics": [
        "algorithms",
        "control_flow_conditionals",
        "control_flow_loops",
        "integers",
        "mathematics"
      ],
      "unlocked_by": "sum-of-multiples",
      "uuid": "c4efbf8a-8e76-4700-807d-830a4938f4d0"
    },
    {
      "core": true,
      "difficulty": 3,
      "slug": "kindergarten-garden",
      "topics": [
        "enumerations",
        "parsing"
      ],
      "unlocked_by": null,
      "uuid": "b7458404-2534-4ed8-8350-7060fa4b5786"
    },
    {
      "core": true,
      "difficulty": 3,
      "slug": "clock",
      "topics": [
        "classes",
        "structural_equality"
      ],
      "unlocked_by": null,
      "uuid": "83e4cb1e-456f-4c74-ae82-6895f0bd73ae"
    },
    {
      "core": true,
      "difficulty": 3,
      "slug": "binary-search",
      "topics": [
        "arrays",
        "searching"
      ],
      "unlocked_by": null,
      "uuid": "f92ff94a-73e6-41cb-a376-835c2368b358"
    },
    {
      "core": true,
      "difficulty": 4,
      "slug": "allergies",
      "topics": [
        "bitwise_operations",
        "filtering"
      ],
      "unlocked_by": null,
      "uuid": "2ac228d8-7bf0-4946-8352-6541df02c0a2"
    },
    {
      "core": true,
      "difficulty": 4,
      "slug": "saddle-points",
      "topics": [
        "arrays",
        "matrices",
        "tuples"
      ],
      "unlocked_by": null,
      "uuid": "cb755a7d-e01d-4758-92ab-9d2e6518a3eb"
    },
    {
      "core": true,
      "difficulty": 5,
      "slug": "markdown",
      "topics": [
        "parsing",
        "refactoring",
        "transforming"
      ],
      "unlocked_by": null,
      "uuid": "dee4abe1-c75f-4cb8-b5f3-5b5b77e1c7aa"
    },
    {
      "core": true,
      "difficulty": 5,
      "slug": "book-store",
      "topics": [
        "recursion"
      ],
      "unlocked_by": null,
      "uuid": "8288d3e0-75a4-4a18-94c7-2fab3228dc58"
    },
    {
      "core": false,
      "difficulty": 1,
      "slug": "gigasecond",
      "topics": [
        "dates"
      ],
      "unlocked_by": null,
      "uuid": "b7116dfb-1107-4546-9f95-f15acdb6f6a4"
    },
    {
      "core": false,
      "difficulty": 1,
      "slug": "rna-transcription",
      "topics": [
        "strings",
        "transforming"
      ],
      "unlocked_by": null,
      "uuid": "440b0b23-220d-4706-98f0-9a89fce85acb"
    },
    {
      "core": false,
      "difficulty": 1,
      "slug": "space-age",
      "topics": [
        "floating_point_numbers"
      ],
      "unlocked_by": null,
      "uuid": "612f058b-c6d9-4c97-913a-eeeb59ef61e1"
    },
    {
      "core": false,
      "difficulty": 1,
      "slug": "difference-of-squares",
      "topics": [
        "control_flow_loops",
        "integers"
      ],
      "unlocked_by": "leap",
      "uuid": "5554c048-0de3-4a85-b043-7577f429cba4"
    },
    {
      "core": false,
      "difficulty": 2,
      "slug": "hamming",
      "topics": [
        "filtering",
        "strings"
      ],
      "unlocked_by": "hello-world",
      "uuid": "05162ee0-38ac-40ad-a591-d70a74b6963a"
    },
    {
      "core": false,
      "difficulty": 2,
      "slug": "grains",
      "topics": [
        "integers"
      ],
      "unlocked_by": "leap",
      "uuid": "372c71b6-6256-4fe2-bddc-55667e3861af"
    },
    {
      "core": false,
      "difficulty": 2,
      "slug": "pangram",
      "topics": [
        "strings"
      ],
      "unlocked_by": "hello-world",
      "uuid": "a595d7a1-81d3-48f2-9921-e53b9b22e072"
    },
    {
      "core": false,
      "difficulty": 2,
      "slug": "etl",
      "topics": [
        "dictionaries",
        "lists",
        "transforming"
      ],
      "unlocked_by": "nucleotide-count",
      "uuid": "36b7602c-44e2-4589-a97d-127a0277b2a2"
    },
    {
      "core": false,
      "difficulty": 3,
      "slug": "phone-number",
      "topics": [
        "parsing",
        "transforming"
      ],
      "unlocked_by": "sum-of-multiples",
      "uuid": "5675771e-1a46-40bd-8923-f6e09642cc0c"
    },
    {
      "core": false,
      "difficulty": 3,
      "slug": "strain",
      "topics": [
        "filtering",
        "sequences"
      ],
      "unlocked_by": "raindrops",
      "uuid": "fdb19da7-28df-429b-83e5-d024abe97870"
    },
    {
      "core": false,
      "difficulty": 3,
      "slug": "scrabble-score",
      "topics": [
        "transforming"
      ],
      "unlocked_by": "sum-of-multiples",
      "uuid": "89c42da3-72a6-423d-a9c7-7caccbd9b1e6"
    },
    {
      "core": false,
      "difficulty": 3,
      "slug": "proverb",
      "topics": [
        "algorithms",
        "strings"
      ],
      "unlocked_by": "raindrops",
      "uuid": "b0a978a6-9c3f-427e-8ada-0a3951ca14fd"
    },
    {
      "core": false,
      "difficulty": 3,
      "slug": "robot-name",
      "topics": [
        "classes",
        "randomness",
        "strings"
      ],
      "unlocked_by": "hello-world",
      "uuid": "46b8aea8-1528-43cb-a754-495ec2790ce2"
    },
    {
      "core": false,
      "difficulty": 3,
      "slug": "protein-translation",
      "topics": [
        "lists",
        "strings",
        "transforming"
      ],
      "unlocked_by": "two-fer",
      "uuid": "75a2d5f0-5f5e-46a3-9dd2-3da415690e18"
    },
    {
      "core": false,
      "difficulty": 3,
      "slug": "error-handling",
      "topics": [
        "exception_handling"
      ],
      "unlocked_by": "bob",
      "uuid": "77e46f6b-1070-4267-a1b5-a2aac931975a"
    },
    {
      "core": false,
      "difficulty": 3,
      "slug": "perfect-numbers",
      "topics": [
        "integers"
      ],
      "unlocked_by": "leap",
      "uuid": "142c97b6-ae31-4b5f-944c-3eb789d9e051"
    },
    {
      "core": false,
      "difficulty": 3,
      "slug": "triangle",
      "topics": [
        "enumerations",
        "integers"
      ],
      "unlocked_by": "leap",
      "uuid": "5b1713c7-1597-4e67-ac97-f305b207bc38"
    },
    {
      "core": false,
      "difficulty": 3,
      "slug": "beer-song",
      "topics": [
        "algorithms",
        "strings"
      ],
      "unlocked_by": "raindrops",
      "uuid": "4ae402a7-5345-429a-a6af-e95ec5b95e13"
    },
    {
      "core": false,
      "difficulty": 3,
      "slug": "sieve",
      "topics": [
        "filtering",
        "mathematics"
      ],
      "unlocked_by": "raindrops",
      "uuid": "1897605a-afd4-49fe-b6ee-cd822f0d8acc"
    },
    {
      "core": false,
      "difficulty": 3,
      "slug": "queen-attack",
      "topics": [
        "classes"
      ],
      "unlocked_by": "clock",
      "uuid": "5c56211a-ae1e-4836-80b5-f22f5801b7a2"
    },
    {
      "core": false,
      "difficulty": 3,
      "slug": "robot-simulator",
      "topics": [
        "classes",
        "enumerations"
      ],
      "unlocked_by": "clock",
      "uuid": "babd38cc-cf21-42ca-9d33-f2ad75c82871"
    },
    {
      "core": false,
      "difficulty": 3,
      "slug": "isogram",
      "topics": [
        "filtering",
        "strings"
      ],
      "unlocked_by": "two-fer",
      "uuid": "4b7b65be-f777-4f64-94a0-4f9832f17a52"
    },
    {
      "core": false,
      "difficulty": 3,
      "slug": "secret-handshake",
      "topics": [
        "arrays",
        "bitwise_operations"
      ],
      "unlocked_by": "sum-of-multiples",
      "uuid": "1ad236a9-7035-42e6-90ec-f6a4b94ad495"
    },
    {
      "core": false,
      "difficulty": 4,
      "slug": "bank-account",
      "topics": [
        "classes",
        "concurrency"
      ],
      "unlocked_by": "clock",
      "uuid": "96c641c8-4c3c-47ff-9e32-9722b5ca2c37"
    },
    {
      "core": false,
      "difficulty": 4,
      "slug": "acronym",
      "topics": [
        "strings",
        "transforming"
      ],
      "unlocked_by": "two-fer",
      "uuid": "ddfb0a0e-8c58-4b9e-ad62-57d06ef10f5f"
    },
    {
      "core": false,
      "difficulty": 4,
      "slug": "simple-linked-list",
      "topics": [
        "classes",
        "lists"
      ],
      "unlocked_by": "clock",
      "uuid": "2d68e971-d717-4196-a348-d4675a47283a"
    },
    {
      "core": false,
      "difficulty": 4,
      "slug": "matrix",
      "topics": [
        "matrices",
        "parsing"
      ],
      "unlocked_by": "kindergarten-garden",
      "uuid": "73509caa-9b3e-4d09-933f-364c1a7e5519"
    },
    {
      "core": false,
      "difficulty": 4,
      "slug": "rotational-cipher",
      "topics": [
        "algorithms",
        "strings",
        "transforming"
      ],
      "unlocked_by": "bob",
      "uuid": "8a0a291d-8330-4901-bdbe-f974e163158e"
    },
    {
      "core": false,
      "difficulty": 4,
      "slug": "largest-series-product",
      "topics": [
        "integers",
        "strings",
        "transforming"
      ],
      "unlocked_by": "leap",
      "uuid": "4a6621bb-e55a-4ae2-89e3-3aa7e37a8656"
    },
    {
      "core": false,
      "difficulty": 4,
      "slug": "house",
      "topics": [
        "algorithms",
        "strings"
      ],
      "unlocked_by": "raindrops",
      "uuid": "97aa0e82-2fc3-49e2-ad27-faef2873b328"
    },
    {
      "core": false,
      "difficulty": 4,
      "slug": "pythagorean-triplet",
      "topics": [
        "integers",
        "mathematics",
        "overloading"
      ],
      "unlocked_by": "leap",
      "uuid": "4d5a53df-3d6b-46cb-a964-71c676f3cd93"
    },
    {
      "core": false,
      "difficulty": 4,
      "slug": "series",
      "topics": [
        "arrays",
        "strings",
        "transforming"
      ],
      "unlocked_by": "sum-of-multiples",
      "uuid": "9ca46617-4995-45cc-a2dd-b8630eaa288b"
    },
    {
      "core": false,
      "difficulty": 4,
      "slug": "twelve-days",
      "topics": [
        "algorithms",
        "strings"
      ],
      "unlocked_by": "bob",
      "uuid": "2627fb4f-7884-4494-8f49-5888107643f1"
    },
    {
      "core": false,
      "difficulty": 4,
      "slug": "anagram",
      "topics": [
        "filtering",
        "strings"
      ],
      "unlocked_by": "bob",
      "uuid": "790216d1-4fd9-4a9b-94f8-e1e07a18c2b7"
    },
    {
      "core": false,
      "difficulty": 4,
      "slug": "word-count",
      "topics": [
        "dictionaries",
        "strings",
        "transforming"
      ],
      "unlocked_by": "bob",
      "uuid": "6e8717a7-6888-474a-96ad-0760c6d3ff92"
    },
    {
      "core": false,
      "difficulty": 4,
      "slug": "prime-factors",
      "topics": [
        "integers",
        "mathematics"
      ],
      "unlocked_by": "leap",
      "uuid": "456ffe2c-e241-4373-8bea-d4d328f815e9"
    },
    {
      "core": false,
      "difficulty": 4,
      "slug": "meetup",
      "topics": [
        "dates"
      ],
      "unlocked_by": "accumulate",
      "uuid": "064096c1-89b0-4656-bd3e-08ca833aa0b1"
    },
    {
      "core": false,
      "difficulty": 4,
      "slug": "all-your-base",
      "topics": [
        "integers",
        "transforming"
      ],
      "unlocked_by": "accumulate",
      "uuid": "de5e2eff-2b80-4996-a322-dc59ebe25edd"
    },
    {
      "core": false,
      "difficulty": 4,
      "slug": "pascals-triangle",
      "topics": [
        "arrays",
        "control_flow_loops",
        "mathematics"
      ],
      "unlocked_by": "accumulate",
      "uuid": "d5d48857-5325-45d2-9969-95a0d7bba370"
    },
    {
      "core": false,
      "difficulty": 4,
      "slug": "isbn-verifier",
      "topics": [
        "conditionals",
        "loops",
        "pattern_matching",
        "strings"
      ],
      "unlocked_by": "bob",
      "uuid": "d714b1e6-48b5-44d6-9661-d0acd3dd657b"
    },
    {
      "core": false,
      "difficulty": 5,
      "slug": "list-ops",
      "topics": [
        "lists",
        "recursion"
      ],
      "unlocked_by": "grade-school",
      "uuid": "3b5b11b0-9476-4d9b-a4c5-c5c48d3d32a8"
    },
    {
      "core": false,
      "difficulty": 5,
      "slug": "simple-cipher",
      "topics": [
        "algorithms",
        "strings",
        "transforming"
      ],
      "unlocked_by": "accumulate",
      "uuid": "54649fb0-6b14-44df-85af-ae1f7a62449d"
    },
    {
      "core": false,
      "difficulty": 5,
      "slug": "roman-numerals",
      "topics": [
        "control_flow_loops",
        "transforming"
      ],
      "unlocked_by": "accumulate",
      "uuid": "d3702b93-7bb3-4e0a-8cd7-974ad93b0d3d"
    },
    {
      "core": false,
      "difficulty": 5,
      "slug": "flatten-array",
      "topics": [
        "lists",
        "recursion"
      ],
      "unlocked_by": "grade-school",
      "uuid": "9ad05373-a049-47f9-a06a-80ad0a7b38fd"
    },
    {
      "core": false,
      "difficulty": 5,
      "slug": "binary-search-tree",
      "topics": [
        "overloading",
        "searching",
        "trees"
      ],
      "unlocked_by": "grade-school",
      "uuid": "d40541a8-d7d6-4dab-8560-27c5055adbd0"
    },
    {
      "core": false,
      "difficulty": 5,
      "slug": "minesweeper",
      "topics": [
        "parsing",
        "transforming"
      ],
      "unlocked_by": "kindergarten-garden",
      "uuid": "466f17d4-13d0-4d6e-8564-c8bdfede35d1"
    },
    {
      "core": false,
      "difficulty": 5,
      "slug": "parallel-letter-frequency",
      "topics": [
        "dictionaries",
        "parallellism",
        "transforming"
      ],
      "unlocked_by": "nucleotide-count",
      "uuid": "5863c898-2072-4543-9ab5-045fd6691de4"
    },
    {
      "core": false,
      "difficulty": 5,
      "slug": "atbash-cipher",
      "topics": [
        "algorithms",
        "strings",
        "transforming"
      ],
      "unlocked_by": "grade-school",
      "uuid": "0c5918d5-15cc-401f-b038-5fb2cd515ec7"
    },
    {
      "core": false,
      "difficulty": 5,
      "slug": "food-chain",
      "topics": [
        "algorithms",
        "strings"
      ],
      "unlocked_by": "allergies",
      "uuid": "3a09736e-4002-41aa-acf9-ff10a9392b24"
    },
    {
      "core": false,
      "difficulty": 5,
      "slug": "grep",
      "topics": [
        "files",
        "searching",
        "strings"
      ],
      "unlocked_by": "markdown",
      "uuid": "a9909a03-ce2e-45d9-85f8-a77f44fb2466"
    },
    {
      "core": false,
      "difficulty": 5,
      "slug": "sublist",
      "topics": [
        "lists"
      ],
      "unlocked_by": "grade-school",
      "uuid": "89d3b074-190f-4520-8f87-cde6368fc58e"
    },
    {
      "core": false,
      "difficulty": 5,
      "slug": "tree-building",
      "topics": [
        "refactoring",
        "trees"
      ],
      "unlocked_by": "allergies",
      "uuid": "b31bff08-a609-40ec-a1ee-46ba24e671f2"
    },
    {
      "core": false,
      "difficulty": 5,
      "slug": "scale-generator",
      "topics": [
        "algorithms",
        "parsing"
      ],
      "unlocked_by": "kindergarten-garden",
      "uuid": "c7d5acc6-68a6-4cd8-a28b-359dceb1e56f"
    },
    {
      "core": false,
      "difficulty": 5,
      "slug": "bracket-push",
      "topics": [
        "parsing",
        "strings"
      ],
      "unlocked_by": "bob",
      "uuid": "a2070019-e56d-4d48-994b-300411598707"
    },
    {
      "core": false,
      "difficulty": 5,
      "slug": "linked-list",
      "topics": [
        "classes",
        "lists"
      ],
      "unlocked_by": "clock",
      "uuid": "49b557ad-0bf0-451b-9a12-6dd9eb0291a2"
    },
    {
      "core": false,
      "difficulty": 5,
      "slug": "crypto-square",
      "topics": [
        "algorithms",
        "strings",
        "transforming"
      ],
      "unlocked_by": "allergies",
      "uuid": "dd95f3d8-6da4-4bb4-b5c1-bf00c818d586"
    },
    {
      "core": false,
      "difficulty": 5,
      "slug": "ledger",
      "topics": [
        "globalization",
        "refactoring",
        "strings"
      ],
      "unlocked_by": "allergies",
      "uuid": "c1cc752e-99a2-4da3-8d0c-82e08f1c6110"
    },
    {
      "core": false,
      "difficulty": 5,
      "slug": "custom-set",
      "topics": [
        "sets"
      ],
      "unlocked_by": "book-store",
      "uuid": "a6dff389-07ea-42cb-98ec-271ce7cfeda3"
    },
    {
      "core": false,
      "difficulty": 5,
      "slug": "dot-dsl",
      "topics": [
        "classes",
        "domain_specific_languages",
        "equality"
      ],
      "unlocked_by": "clock",
      "uuid": "d128ec4b-190f-4726-b3e7-870be09531aa"
    },
    {
      "core": false,
      "difficulty": 5,
      "slug": "ocr-numbers",
      "topics": [
        "parsing",
        "pattern_recognition"
      ],
      "unlocked_by": "kindergarten-garden",
      "uuid": "2a5ddf5e-e677-4eef-b759-087d71e15986"
    },
    {
      "core": false,
      "difficulty": 5,
      "slug": "circular-buffer",
      "topics": [
        "classes",
        "queues"
      ],
      "unlocked_by": "markdown",
      "uuid": "657ac368-9b17-4f87-b815-decfe2bc0b5d"
    },
    {
      "core": false,
      "difficulty": 5,
      "slug": "luhn",
      "topics": [
        "algorithms",
        "strings",
        "transforming"
      ],
      "unlocked_by": "markdown",
      "uuid": "20fe4853-0eee-4171-b3c1-8ef871b99d13"
    },
    {
      "core": false,
      "difficulty": 5,
      "slug": "run-length-encoding",
      "topics": [
        "algorithms",
        "transforming"
      ],
      "unlocked_by": "markdown",
      "uuid": "4ad0d49a-e10b-4f8b-b454-623b9396d559"
    },
    {
      "core": false,
      "difficulty": 5,
      "slug": "spiral-matrix",
      "topics": [
        "algorithms",
        "matrices"
      ],
      "unlocked_by": "matrix",
      "uuid": "bae1f3a4-b63d-4efd-921a-133b3d5e379c"
    },
    {
      "core": false,
      "difficulty": 6,
      "slug": "tournament",
      "topics": [
        "parsing",
        "strings"
      ],
      "unlocked_by": "kindergarten-garden",
      "uuid": "d9359f25-dc94-496c-adc3-57fe541857fe"
    },
    {
      "core": false,
      "difficulty": 6,
      "slug": "word-search",
      "topics": [
        "searching",
        "tuples"
      ],
      "unlocked_by": "markdown",
      "uuid": "2b05d7dd-0f0b-4fa4-a2bf-9d7fa28a7543"
    },
    {
      "core": false,
      "difficulty": 6,
      "slug": "bowling",
      "topics": [
        "algorithms",
        "control_flow_loops"
      ],
      "unlocked_by": "markdown",
      "uuid": "64eff1cb-990d-45bc-a9e7-8f574e114ece"
    },
    {
      "core": false,
      "difficulty": 6,
      "slug": "transpose",
      "topics": [
        "strings",
        "transforming"
      ],
      "unlocked_by": "markdown",
      "uuid": "2634c53c-ba4d-4729-b936-a7ec387f4789"
    },
    {
      "core": false,
      "difficulty": 6,
      "slug": "nth-prime",
      "topics": [
        "mathematics"
      ],
      "unlocked_by": "book-store",
      "uuid": "60ef0713-70e2-4ee7-9207-86910e616ec1"
    },
    {
      "core": false,
      "difficulty": 6,
      "slug": "pig-latin",
      "topics": [
        "strings",
        "transforming"
      ],
      "unlocked_by": "book-store",
      "uuid": "63bdd2d4-b395-41ca-8c58-b3d94bf1e696"
    },
    {
      "core": false,
      "difficulty": 6,
      "slug": "rail-fence-cipher",
      "topics": [
        "algorithms",
        "strings",
        "transforming"
      ],
      "unlocked_by": "book-store",
      "uuid": "e338fed5-f850-4922-88b2-7e9ec0eb7299"
    },
    {
      "core": false,
      "difficulty": 6,
      "slug": "change",
      "topics": [
        "arrays",
        "integers"
      ],
      "unlocked_by": "binary-search",
      "uuid": "44796c6c-39b3-41c7-8ea5-ffb9738423b8"
    },
    {
      "core": false,
      "difficulty": 6,
      "slug": "palindrome-products",
      "topics": [
        "algorithms",
        "strings",
        "tuples"
      ],
      "unlocked_by": "saddle-points",
      "uuid": "165b8599-726d-43dd-8511-1401525810de"
    },
    {
      "core": false,
      "difficulty": 6,
      "slug": "complex-numbers",
      "topics": [
        "mathematics",
        "tuples"
      ],
      "unlocked_by": "leap",
      "uuid": "0ed2de0f-70da-4f04-834e-01bfb0aa48d3"
    },
    {
      "core": false,
      "difficulty": 7,
      "slug": "poker",
      "topics": [
        "games",
        "parsing",
        "sorting"
      ],
      "unlocked_by": "kindergarten-garden",
      "uuid": "d03a9508-336a-4425-8f47-f04317d1ba15"
    },
    {
      "core": false,
      "difficulty": 7,
      "slug": "diffie-hellman",
      "topics": [
        "algorithms",
        "integers",
        "transforming"
      ],
      "unlocked_by": "book-store",
      "uuid": "3bea029d-ccc2-48be-90f3-84bf2d5b825b"
    },
    {
      "core": false,
      "difficulty": 7,
      "slug": "dominoes",
      "topics": [
        "arrays",
        "tuples"
      ],
      "unlocked_by": "binary-search",
      "uuid": "0409f45f-b65e-4404-a9e7-2ef432d834b2"
    },
    {
      "core": false,
      "difficulty": 7,
      "slug": "rectangles",
      "topics": [
        "parsing",
        "transforming"
      ],
      "unlocked_by": "kindergarten-garden",
      "uuid": "817ccde1-0593-4091-85a5-616f4f8823f0"
    },
    {
      "core": false,
      "difficulty": 7,
      "slug": "wordy",
      "topics": [
        "parsing",
        "strings",
        "transforming"
      ],
      "unlocked_by": "kindergarten-garden",
      "uuid": "57ef1936-d187-4915-888b-374f09c794c7"
    },
    {
      "core": false,
      "difficulty": 8,
      "slug": "zebra-puzzle",
      "topics": [
        "logic"
      ],
      "unlocked_by": "book-store",
      "uuid": "e167479e-e77d-4734-b8c0-a7cd686c74a3"
    },
    {
      "core": false,
      "difficulty": 8,
      "slug": "hangman",
      "topics": [
        "events",
        "reactive_programming"
      ],
      "unlocked_by": "saddle-points",
      "uuid": "c9b12d50-09dc-4f43-9e7e-66b277432347"
    },
    {
      "core": false,
      "difficulty": 8,
      "slug": "diamond",
      "topics": [
        "algorithms",
        "strings"
      ],
      "unlocked_by": "saddle-points",
      "uuid": "2f3faeb7-7cc3-42ed-9525-cd9c73922a8d"
    },
    {
      "core": false,
      "difficulty": 8,
      "slug": "two-bucket",
      "topics": [
        "logic"
      ],
      "unlocked_by": "saddle-points",
      "uuid": "b33c3b86-e04b-4529-bdf5-9d553ad59f87"
    },
    {
      "core": false,
      "difficulty": 8,
      "slug": "connect",
      "topics": [
        "parsing",
        "transforming"
      ],
      "unlocked_by": "kindergarten-garden",
      "uuid": "ca56c362-c9f5-4403-9a2d-2e31e54b35e3"
    },
    {
      "core": false,
      "difficulty": 8,
      "slug": "say",
      "topics": [
        "strings",
        "transforming"
      ],
      "unlocked_by": "kindergarten-garden",
      "uuid": "34518ea7-c202-443a-b28f-e873f3207f89"
    },
    {
      "core": false,
      "difficulty": 9,
      "slug": "react",
      "topics": [
        "classes",
        "events",
        "reactive_programming"
      ],
      "unlocked_by": "saddle-points",
      "uuid": "3e86c66d-c66e-4e28-834d-09b33b2ee2d2"
    },
    {
      "core": false,
      "difficulty": 9,
      "slug": "variable-length-quantity",
      "topics": [
        "algorithms",
        "bitwise_operations"
      ],
      "unlocked_by": "allergies",
      "uuid": "4c49ea84-8765-42b0-b4ab-5dead802eeee"
    },
    {
      "core": false,
      "difficulty": 9,
      "slug": "go-counting",
      "topics": [
        "optional_values",
        "parsing",
        "tuples"
      ],
      "unlocked_by": "saddle-points",
      "uuid": "1abbc58c-9a04-4b6f-afe1-85d3e4d202e1"
    },
    {
      "core": false,
      "difficulty": 9,
      "slug": "sgf-parsing",
      "topics": [
        "parsing",
        "transforming"
      ],
      "unlocked_by": "kindergarten-garden",
      "uuid": "da255a02-8007-41e4-8a9e-7e2cfbe81be5"
    },
    {
      "core": false,
      "difficulty": 10,
      "slug": "zipper",
      "topics": [
        "recursion",
        "searching",
        "trees"
      ],
      "unlocked_by": "markdown",
      "uuid": "db77fbd1-29d9-40e6-a32e-9fb89acdc9fc"
    },
    {
      "core": false,
      "difficulty": 10,
      "slug": "alphametics",
      "topics": [
        "dictionaries",
        "parsing"
      ],
      "unlocked_by": "nucleotide-count",
      "uuid": "c6961cae-5e93-470a-98ce-e7cd6b9cfcbf"
    },
    {
      "core": false,
      "difficulty": 10,
      "slug": "forth",
      "topics": [
        "parsing",
        "stacks"
      ],
      "unlocked_by": "markdown",
      "uuid": "a2ba6202-f6e0-46f4-95e4-5921656f2e1a"
    },
    {
      "core": false,
      "difficulty": 10,
      "slug": "pov",
      "topics": [
        "graphs",
        "recursion",
        "searching"
      ],
      "unlocked_by": "markdown",
      "uuid": "a5794706-58d2-48f7-8aab-78639d7bce77"
    }
  ],
  "foregone": [
    "lens-person",
    "nucleotide-codons",
    "paasio",
    "point-mutations",
    "counter"
  ],
  "language": "C#"
}