diff --git a/lib/adagrams.rb b/lib/adagrams.rb
index e69de29..2bbd9c2 100644
--- a/lib/adagrams.rb
+++ b/lib/adagrams.rb
@@ -0,0 +1,104 @@
+require 'csv'
+
+####################### WAVE 1 ##########################
+# preliminary set up
+letters = %w[A B C D E F G H I J K L M N O P Q R S T U V W X Y Z]
+freq = %w[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]
+
+freq = freq.map do |number_string|
+  number_string.to_i
+end
+
+# Assemble fresh new bag of tiles
+PILE = []
+letters.length.times do |index|
+  freq[index].times do
+    PILE << letters[index]
+  end
+end
+
+def draw_letters
+  return PILE.sample(10)
+end
+
+####################### WAVE 2 ##########################
+
+def uses_available_letters?(input, letters_in_hand)
+  clone_letters_in_hand = letters_in_hand.dup
+  
+  # splits input into individual capital letters 
+  input_array = input.split(//)
+  input_array = input_array.map { |letter| letter.upcase }
+  
+  if input.length > clone_letters_in_hand.length
+    return false
+  elsif input.length == 0
+    return false
+  end
+  
+  # check letters against letters_in_hand
+  input_array.length.times do |index|
+    if clone_letters_in_hand.include? input_array[index]
+      garbage_index = clone_letters_in_hand.rindex(input_array[index])
+      clone_letters_in_hand.delete_at(garbage_index)
+    else
+      return false
+    end       
+  end
+  
+  return true
+end
+
+####################### WAVE 3 ##########################
+
+def score_word(word)
+  score_hash = { A: 1, E: 1, I: 1, O: 1, U: 1, L: 1, N: 1, R: 1, S: 1, T: 1, 
+    D: 2, G: 2, B: 3, C: 3, M: 3, P: 3, F: 4, H: 4, V: 4, W: 4, Y: 4, 
+    K: 5, J: 8, X: 8, Q: 10, Z: 10 }
+    
+    word_array = word.upcase.split(//)
+    score = 0
+    
+    word_array.each do |letter|
+      score += score_hash[letter.to_sym] 
+    end
+    
+    if word_array.length >= 7 && word_array.length < 11
+      score += 8
+    end
+    
+    return score
+  end
+  
+  ####################### WAVE 4 ##########################
+  words = []
+  
+  def highest_score_from(words)
+    highest_score = 0
+    winner = nil
+    
+    words.each do |word|
+      score = score_word(word)
+      
+      if score > highest_score
+        highest_score = score
+        winner = word
+      elsif score == highest_score && winner.length != 10
+        if word.length == 10 || (word.length < winner.length)
+          winner = word
+        end
+      end
+    end
+    
+    return {word: winner, score: highest_score}
+  end
+  
+  ####################### WAVE 5 ##########################
+  
+  def is_in_english_dict?(input)
+    all_words = CSV.read('assets/dictionary-english.csv')
+    input = [input.downcase]
+    return all_words.include? input
+  end
+  
+  
\ No newline at end of file