diff --git a/lib/adagrams.rb b/lib/adagrams.rb
index e69de29..7a31596 100644
--- a/lib/adagrams.rb
+++ b/lib/adagrams.rb
@@ -0,0 +1,161 @@
+# Adagrams
+# Lak & Diana
+
+# Dependencies
+require 'awesome_print'
+require 'csv'
+
+# Method to create letter pool 
+def create_letter_pool(letter, quantity)
+  index = 0
+  letter_pool = []
+
+  letter.each_with_index do |letter, index|
+    letter_pool.fill(letter, letter_pool.size, quantity[index])
+  end
+  return letter_pool
+end
+
+# Wave (1) - method to draw 10 random letters
+def draw_letters
+    letter = ('A'..'Z').to_a
+    quantity = [9, 2, 2, 4, 12, 2, 3, 2, 9, 1, 1, 4, 2, 6, 8, 2, 1, 6, 4, 6, 4, 2, 2, 1, 2, 1]
+   
+  # Use the create_letter_pool method
+    create_letter_pool(letter, quantity)
+    letter_pool_array = create_letter_pool(letter, quantity)
+    
+  # Shuffle the letter pool
+    letter_pool_array = letter_pool_array.shuffle()
+    letters = letter_pool_array.sample(10) # Not sure if it will have more than 2 Cs
+    letter.join(', ')
+    return drawn_letters = letters
+end
+
+# Wave (5) - method to verify if word is a valid word in the English dictionary
+def is_in_english_dict? (input)
+  dictionary = CSV.read('assets/dictionary-english.csv')
+  dictionary = dictionary.flatten
+  is_valid_word = dictionary.include?(input) 
+  return is_valid_word
+end
+
+# Wave (2)- method to check whether word by user is in drawn letters
+def uses_available_letters? (input, letters_in_hand)
+  input = input.upcase.chars
+  # make copy of drawn letters
+  dl_copy = letters_in_hand.dup
+
+  # if letter of input = letter in drawn letters, remove letter in drawn letters
+  # continue to compare rest of letters to drawn letters
+  # times_true array used to determine if word is valid
+  times_true = []
+  input.each do |letter|
+    if dl_copy.include?(letter) == true
+      dl_copy.delete_at(dl_copy.index(letter))
+      times_true << "true"
+    else
+      times_true << "false"
+    end
+  end
+
+  if times_true.count("true") == input.length
+    is_valid = true
+  else
+    is_valid = false
+  end
+  return is_valid
+end
+
+# Wave (3) - method to calculate score
+def score_word(word)
+  word = word.upcase.chars
+
+  # scoring
+  if word.empty? == true # nil case or empty string
+    score_word = 0
+  else
+      score_word = word.map do |letter|
+        case letter
+        when "A", "E", "I", "O", "U", "L", "N", "R", "S", "T"
+          1
+        when "D", "G"
+          2
+        when "B", "C", "M", "P"
+          3
+        when "F", "H", "V", "W", "Y"
+          4
+        when "K"
+          5
+        when "J", "X"
+          8
+        when "Q", "Z"
+          10
+        else
+          0
+        end
+      end
+      
+      # calculate total score
+      score_word = score_word.inject(:+)
+
+      # > 7 letter bonus
+      if word.length >= 7
+        score_word = score_word + 8
+      else
+        score_word = score_word
+      end
+  end
+  return score_word 
+end
+
+# Wave (4)- method to calculate winning word
+def highest_score_from (words)
+  # hash with all words and scores
+  all_words_score = words.map do |word|
+    score = score_word(word)
+    {
+      :word => word,
+      :score => score
+    }
+  end
+  
+  # highest score calculation
+  highest_score = 0
+  highest_word = ""
+  best_word = {}
+
+  all_words_score.each do |word|
+    #tie rules
+    case
+    when word[:score] > highest_score
+      highest_score = word[:score]
+      highest_word = word[:word]
+    # test 7 - tied score and same length words, prefers the first word
+    when (word[:score] == highest_score) && ((word[:word]).length == highest_word.length)
+      highest_score = highest_score
+      highest_word = highest_word
+    # test 5 & 6 - tied score, prefers most the word with 10 letters regardless of order
+    when (word[:score] == highest_score) && ((word[:word]).length == 10)
+      highest_score = word[:score]
+      highest_word = word[:word]
+    when (word[:score] == highest_score) && (highest_word.length == 10)
+      highest_score = highest_score
+      highest_word = highest_word
+    # test 3 & 4 - tied score, prefers the word with fewer letters regardless of order
+    when (word[:score] == highest_score) && ((word[:word]).length < highest_word.length)
+      highest_score = word[:score]
+      highest_word = word[:word]
+    when (word[:score] == highest_score) && ((word[:word]).length > highest_word.length)
+      highest_score = highest_score
+      highest_word = highest_word
+    end
+  end
+  
+  best_word[:word] = "#{highest_word}"
+  best_word[:score] = highest_score
+
+  return best_word
+
+end
+