diff --git a/lib/adagrams.rb b/lib/adagrams.rb
index e69de29..7138490 100644
--- a/lib/adagrams.rb
+++ b/lib/adagrams.rb
@@ -0,0 +1,156 @@
+# Defining requirements and constants
+require "csv"
+require "awesome_print"
+
+LETTERS = {
+  "A" => 9,
+  "B" => 2,
+  "C" => 2,
+  "D" => 4,
+  "E" => 12,	
+  "F" => 2,
+  "G" => 3,
+  "H" => 2,
+  "I" => 9,
+  "J" => 1,
+  "K" => 1,
+  "L" => 4,
+  "M" => 2,
+  "N" => 6,
+  "O" => 8,
+  "P" => 2,
+  "Q" => 1,
+  "R" => 6,
+  "S" => 4,
+  "T" => 6,
+  "U" => 4,
+  "V" => 2,
+  "W" => 2,
+  "X" => 1,
+  "Y" => 2,
+  "Z" => 1
+}
+
+POINT_VALUES = {
+  "A" => 1,	
+  "B" => 3,	
+  "C" => 3,	
+  "D" => 2,	
+  "E" => 1,	
+  "F" => 4,
+  "G" => 2,	
+  "H" => 4,	
+  "I" => 1,	
+  "J" => 8,	
+  "K" => 5,	
+  "L" => 1,	
+  "M" => 3,	
+  "N" => 1,
+  "O" => 1,
+  "P" => 3,
+  "Q" => 10,
+  "R" => 1,
+  "S" => 1,
+  "T" => 1,
+  "U" => 1,
+  "V" => 4,
+  "W" => 4,
+  "X" => 8,
+  "Y" => 4,
+  "Z" => 10
+}
+
+DICTIONARY = "../assets/dictionary-english.csv"
+
+# Wave 1
+def draw_letters
+  pool = LETTERS.map do |letter, num_of_tiles|
+    [letter] * num_of_tiles
+  end.flatten
+  pool = pool.shuffle.drop(88)
+  return pool
+end
+
+# Wave 2
+def uses_available_letters?(input, letters_in_hand)
+  input_array = Array.new(input.chars)
+  current_hand = Array.new(letters_in_hand)
+  input_array.map do |letter|
+    if current_hand.index(letter) != nil
+      current_hand.delete_at(current_hand.index(letter))
+    else
+      return false
+    end
+  end
+  return true
+end
+
+# Wave 3
+def score_word(word)
+  total_points = 0
+  word_array = Array.new(word.upcase.chars)
+  points = word_array.map do |char|
+    POINT_VALUES.fetch_values(char)
+  end
+  total_points = points.flatten.sum
+  total_points += 8 if word_array.length >= 7
+  return total_points
+end
+
+# Wave 4
+def highest_score_from(words)
+  all_words = []
+  max_score = 0
+
+  words.each do |word|
+    word_data = {}
+    word_data[:word] = word
+    word_data[:score] = score_word(word)
+    all_words << word_data
+  end
+
+  tie_scores = []
+  all_words.each do |hash|
+    current_score = hash[:score]
+    if current_score > max_score
+      max_score = current_score
+      tie_scores = [hash]
+    elsif current_score == max_score
+      tie_scores << hash
+    end
+  end
+
+  shortest_length = 11
+  shortest_words = []
+
+  # if only one element in tie_scores, that's the winner
+  return tie_scores[0] if tie_scores.length == 1
+
+  tie_scores.each do |tie|
+    # if 10 chars long, that's the winner
+    if tie[:word].length == 10
+      return tie
+    # if smaller word is found, update shortest_length and create a new shortest_words array to collect
+    # any possible ties for shortest length
+    elsif tie[:word].length < shortest_length
+      shortest_length = tie[:word].length
+      shortest_words = [tie]
+      # if more than one word ties for shortest_length, put it into existing shortest_words array
+    elsif tie[:word].length == shortest_length
+      shortest_words << tie
+    end
+  end
+  
+  # if winner wasn't already found, the winner is the first item of shortest_words
+  return shortest_words[0]
+end
+
+# Wave 5
+def is_in_english_dict?(input)
+  dictionary = CSV.read(DICTIONARY, headers: true).each do |word_entry|
+    if word_entry["Word"] == input.downcase
+      return true
+    end
+  end
+  return false
+end
\ No newline at end of file