diff --git a/src/main/scala/combinations/PokerCombination.scala b/src/main/scala/combinations/PokerCombination.scala
new file mode 100644
index 0000000..90df513
--- /dev/null
+++ b/src/main/scala/combinations/PokerCombination.scala
@@ -0,0 +1,32 @@
+package combinations
+
+import cards._
+import score._
+
+/**
+ * Represents a generic poker combination.
+ * Each combination must define its name, score, and a method
+ * to determine if a list of cards satisfies the condition of the combination.
+ */
+trait PokerCombination {
+
+  /**
+   * The name of the poker combination (e.g., "Flush", "FullHouse").
+   */
+  def name: String
+
+  /**
+   * The score associated with this combination.
+   * This includes both the number of chips and a multiplier.
+   */
+  def score: Score
+
+  /**
+   * Verifies whether a given list of cards satisfies this poker combination.
+   * The list can contain between 1 and 5 cards.
+   *
+   * @param cards the list of cards to evaluate
+   * @return true if the combination is met, false otherwise
+   */
+  def verify(cards: List[Card]): Boolean
+}
diff --git a/src/test/scala/combinations/FlushTest.scala b/src/test/scala/combinations/FlushTest.scala
index 496cfc0..5b3b049 100644
--- a/src/test/scala/combinations/FlushTest.scala
+++ b/src/test/scala/combinations/FlushTest.scala
@@ -2,24 +2,33 @@ package combinations
 
 import munit.FunSuite
 import cards._
-import score.Score
+
 
 class FlushTest extends FunSuite {
 
-  test("Flush reconoce una mano válida") {
+  test("Flush recognizes a valid hand") {
     val hand = List(
-      // TODO: cinco cartas del mismo palo, sin orden
+      Card(Two, Hearts),
+      Card(Five, Hearts),
+      Card(Seven, Hearts),
+      Card(Jack, Hearts),
+      Card(Queen, Hearts)
     )
-    val combinacion = new Flush()
-    assert(combinacion.verifica(hand))
-    assertEquals(combinacion.score, Score(35, 4))
+    val combination = Flush()
+    assert(combination.verify(hand))
+    assertEquals(combination.score.chips, 35)
+    assertEquals(combination.score.multiplier, 4)
   }
 
-  test("Flush no reconoce una mano inválida") {
+  test("Flush does not recognize an invalid hand") {
     val hand = List(
-      // TODO: cartas que no cumplan la condición
+      Card(Two, Hearts),
+      Card(Five, Spades),
+      Card(Seven, Hearts),
+      Card(Jack, Hearts),
+      Card(Queen, Hearts)
     )
-    val combinacion = new Flush()
-    assert(!combinacion.verifica(hand))
+    val combination = Flush()
+    assert(!combination.verify(hand))
   }
 }
diff --git a/src/test/scala/combinations/FourOfAKindTest.scala b/src/test/scala/combinations/FourOfAKindTest.scala
index f588fd8..a590746 100644
--- a/src/test/scala/combinations/FourOfAKindTest.scala
+++ b/src/test/scala/combinations/FourOfAKindTest.scala
@@ -2,24 +2,32 @@ package combinations
 
 import munit.FunSuite
 import cards._
-import score.Score
 
 class FourOfAKindTest extends FunSuite {
 
-  test("FourOfAKind reconoce una mano válida") {
+  test("Poker recognizes a valid hand") {
     val hand = List(
-      // TODO: cuatro cartas del mismo rango
+      Card(Two, Hearts),
+      Card(Two, Hearts),
+      Card(Two, Hearts),
+      Card(Two, Hearts),
+      Card(Queen, Hearts)
     )
-    val combinacion = new FourOfAKind()
-    assert(combinacion.verifica(hand))
-    assertEquals(combinacion.score, Score(60, 7))
+    val combination = FourOfAKind()
+    assert(combination.verify(hand))
+    assertEquals(combination.score.chips, 60)
+    assertEquals(combination.score.multiplier, 7)
   }
 
-  test("FourOfAKind no reconoce una mano inválida") {
+  test("Poker does not recognize an invalid hand") {
     val hand = List(
-      // TODO: cartas que no cumplan la condición
+      Card(Two, Hearts),
+      Card(Five, Spades),
+      Card(Seven, Hearts),
+      Card(Jack, Hearts),
+      Card(Queen, Hearts)
     )
-    val combinacion = new FourOfAKind()
-    assert(!combinacion.verifica(hand))
+    val combination = FourOfAKind()
+    assert(!combination.verify(hand))
   }
 }
diff --git a/src/test/scala/combinations/FullHouseTest.scala b/src/test/scala/combinations/FullHouseTest.scala
index 6ff16dc..860ccdc 100644
--- a/src/test/scala/combinations/FullHouseTest.scala
+++ b/src/test/scala/combinations/FullHouseTest.scala
@@ -2,24 +2,32 @@ package combinations
 
 import munit.FunSuite
 import cards._
-import score.Score
 
 class FullHouseTest extends FunSuite {
 
-  test("FullHouse reconoce una mano válida") {
+  test("Full house recognizes a valid hand") {
     val hand = List(
-      // TODO: tres cartas de un rango y dos de otro
+      Card(Two, Hearts),
+      Card(Two, Hearts),
+      Card(Queen, Hearts),
+      Card(Queen, Hearts),
+      Card(Queen, Hearts)
     )
-    val combinacion = new FullHouse()
-    assert(combinacion.verifica(hand))
-    assertEquals(combinacion.score, Score(40, 4))
+    val combination = FullHouse()
+    assert(combination.verify(hand))
+    assertEquals(combination.score.chips, 40)
+    assertEquals(combination.score.multiplier, 4)
   }
 
-  test("FullHouse no reconoce una mano inválida") {
+  test("Full house does not recognize an invalid hand") {
     val hand = List(
-      // TODO: cartas que no cumplan la condición
+      Card(Two, Hearts),
+      Card(Five, Spades),
+      Card(Seven, Hearts),
+      Card(Jack, Hearts),
+      Card(Queen, Hearts)
     )
-    val combinacion = new FullHouse()
-    assert(!combinacion.verifica(hand))
+    val combination = FullHouse()
+    assert(!combination.verify(hand))
   }
 }
diff --git a/src/test/scala/combinations/HighCardTest.scala b/src/test/scala/combinations/HighCardTest.scala
index a9866d3..4a68bb0 100644
--- a/src/test/scala/combinations/HighCardTest.scala
+++ b/src/test/scala/combinations/HighCardTest.scala
@@ -2,24 +2,27 @@ package combinations
 
 import munit.FunSuite
 import cards._
-import score.Score
 
 class HighCardTest extends FunSuite {
 
-  test("HighCard reconoce una mano válida") {
+  test("HighCard accepts any hand") {
     val hand = List(
-      // TODO: sin pares, sin color, sin escalera
+      Card(Two, Hearts),
+      Card(Four, Clubs),
+      Card(Seven, Diamonds),
+      Card(Jack, Spades),
+      Card(Ace, Hearts)
     )
-    val combinacion = new HighCard()
-    assert(combinacion.verifica(hand))
-    assertEquals(combinacion.score, Score(5, 1))
+
+    val combination = HighCard()
+    assert(combination.verify(hand))
+    assertEquals(combination.score.chips, 5)
+    assertEquals(combination.score.multiplier, 1)
   }
 
-  test("HighCard no reconoce una mano inválida") {
-    val hand = List(
-      // TODO: cartas que no cumplan la condición
-    )
-    val combinacion = new HighCard()
-    assert(!combinacion.verifica(hand))
+  test("HighCard accepts even a single card") {
+    val hand = List(Card(King, Clubs))
+    val combination = HighCard()
+    assert(combination.verify(hand))
   }
 }
diff --git a/src/test/scala/combinations/PairTest.scala b/src/test/scala/combinations/PairTest.scala
index 9c509eb..af969d4 100644
--- a/src/test/scala/combinations/PairTest.scala
+++ b/src/test/scala/combinations/PairTest.scala
@@ -2,24 +2,32 @@ package combinations
 
 import munit.FunSuite
 import cards._
-import score.Score
 
 class PairTest extends FunSuite {
 
-  test("Pair reconoce una mano válida") {
+  test("Pair recognizes a valid hand") {
     val hand = List(
-      // TODO: un par
+      Card(Two, Hearts),
+      Card(Two, Hearts),
+      Card(Five, Hearts),
+      Card(Six, Hearts),
+      Card(Queen, Hearts)
     )
-    val combinacion = new Pair()
-    assert(combinacion.verifica(hand))
-    assertEquals(combinacion.score, Score(10, 2))
+    val combination = Pair()
+    assert(combination.verify(hand))
+    assertEquals(combination.score.chips, 10)
+    assertEquals(combination.score.multiplier, 2)
   }
 
-  test("Pair no reconoce una mano inválida") {
+  test("Pair does not recognize an invalid hand") {
     val hand = List(
-      // TODO: cartas que no cumplan la condición
+      Card(Two, Hearts),
+      Card(Five, Spades),
+      Card(Seven, Hearts),
+      Card(Jack, Hearts),
+      Card(Queen, Hearts)
     )
-    val combinacion = new Pair()
-    assert(!combinacion.verifica(hand))
+    val combination = Pair()
+    assert(!combination.verify(hand))
   }
 }
diff --git a/src/test/scala/combinations/StraightFlushTest.scala b/src/test/scala/combinations/StraightFlushTest.scala
index 2964f6f..29b17e9 100644
--- a/src/test/scala/combinations/StraightFlushTest.scala
+++ b/src/test/scala/combinations/StraightFlushTest.scala
@@ -2,24 +2,33 @@ package combinations
 
 import munit.FunSuite
 import cards._
-import score.Score
+import score._
 
 class StraightFlushTest extends FunSuite {
 
-  test("StraightFlush reconoce una mano válida") {
+  test("StraightFlush recognizes a valid hand") {
     val hand = List(
-      // TODO: cinco cartas consecutivas del mismo palo
+      Card(Two, Hearts),
+      Card(Three, Hearts),
+      Card(Four, Hearts),
+      Card(Five, Hearts),
+      Card(Six, Hearts)
     )
-    val combinacion = new StraightFlush()
-    assert(combinacion.verifica(hand))
-    assertEquals(combinacion.score, Score(100, 8))
+    val combination = new StraightFlush()
+    assert(combination.verify(hand))
+    assertEquals(combination.score.chips, 100)
+    assertEquals(combination.score.multiplier, 8)
   }
 
-  test("StraightFlush no reconoce una mano inválida") {
+  test("StraightFlush does not recognize an invalid hand") {
     val hand = List(
-      // TODO: cartas que no cumplan la condición
+      Card(Two, Hearts),
+      Card(Three, Hearts),
+      Card(Four, Hearts),
+      Card(Five, Hearts),
+      Card(Six, Spades)
     )
-    val combinacion = new StraightFlush()
-    assert(!combinacion.verifica(hand))
+    val combination = new StraightFlush()
+    assert(!combination.verify(hand))
   }
 }
diff --git a/src/test/scala/combinations/StraightTest.scala b/src/test/scala/combinations/StraightTest.scala
index a9f591f..0cdd8ff 100644
--- a/src/test/scala/combinations/StraightTest.scala
+++ b/src/test/scala/combinations/StraightTest.scala
@@ -2,24 +2,33 @@ package combinations
 
 import munit.FunSuite
 import cards._
-import score.Score
+import score._
 
 class StraightTest extends FunSuite {
 
-  test("Straight reconoce una mano válida") {
+  test("Straight recognizes a valid hand") {
     val hand = List(
-      // TODO: cinco cartas consecutivas de cualquier palo
+      Card(Two, Hearts),
+      Card(Three, Clubs),
+      Card(Four, Diamonds),
+      Card(Five, Spades),
+      Card(Six, Hearts)
     )
-    val combinacion = new Straight()
-    assert(combinacion.verifica(hand))
-    assertEquals(combinacion.score, Score(30, 4))
+    val combination = new Straight()
+    assert(combination.verify(hand))
+    assertEquals(combination.score.chips, 30)
+    assertEquals(combination.score.multiplier, 4)
   }
 
-  test("Straight no reconoce una mano inválida") {
+  test("Straight does not recognize an invalid hand") {
     val hand = List(
-      // TODO: cartas que no cumplan la condición
+      Card(Two, Hearts),
+      Card(Three, Clubs),
+      Card(Five, Diamonds),
+      Card(Seven, Spades),
+      Card(Nine, Hearts)
     )
-    val combinacion = new Straight()
-    assert(!combinacion.verifica(hand))
+    val combination = new Straight()
+    assert(!combination.verify(hand))
   }
 }
diff --git a/src/test/scala/combinations/ThreeOfAKindTest.scala b/src/test/scala/combinations/ThreeOfAKindTest.scala
index 2aab59f..632785a 100644
--- a/src/test/scala/combinations/ThreeOfAKindTest.scala
+++ b/src/test/scala/combinations/ThreeOfAKindTest.scala
@@ -2,24 +2,33 @@ package combinations
 
 import munit.FunSuite
 import cards._
-import score.Score
+import score._
 
 class ThreeOfAKindTest extends FunSuite {
 
-  test("ThreeOfAKind reconoce una mano válida") {
+  test("ThreeOfAKind recognizes a valid hand") {
     val hand = List(
-      // TODO: tres cartas del mismo rango
+      Card(Five, Hearts),
+      Card(Five, Spades),
+      Card(Five, Diamonds),
+      Card(Seven, Hearts),
+      Card(Nine, Spades)
     )
-    val combinacion = new ThreeOfAKind()
-    assert(combinacion.verifica(hand))
-    assertEquals(combinacion.score, Score(30, 3))
+    val combination = new ThreeOfAKind()
+    assert(combination.verify(hand))
+    assertEquals(combination.score.chips, 30)
+    assertEquals(combination.score.multiplier, 3)
   }
 
-  test("ThreeOfAKind no reconoce una mano inválida") {
+  test("ThreeOfAKind does not recognize an invalid hand") {
     val hand = List(
-      // TODO: cartas que no cumplan la condición
+      Card(Five, Hearts),
+      Card(Five, Spades),
+      Card(Six, Diamonds),
+      Card(Seven, Hearts),
+      Card(Nine, Spades)
     )
-    val combinacion = new ThreeOfAKind()
-    assert(!combinacion.verifica(hand))
+    val combination = new ThreeOfAKind()
+    assert(!combination.verify(hand))
   }
 }
diff --git a/src/test/scala/combinations/TwoPairTest.scala b/src/test/scala/combinations/TwoPairTest.scala
index a11ba6f..c602bdb 100644
--- a/src/test/scala/combinations/TwoPairTest.scala
+++ b/src/test/scala/combinations/TwoPairTest.scala
@@ -2,24 +2,33 @@ package combinations
 
 import munit.FunSuite
 import cards._
-import score.Score
+import score._
 
 class TwoPairTest extends FunSuite {
 
-  test("TwoPair reconoce una mano válida") {
+  test("TwoPair recognizes a valid hand") {
     val hand = List(
-      // TODO: dos pares de distinto rango
+      Card(Five, Hearts),
+      Card(Five, Spades),
+      Card(Seven, Diamonds),
+      Card(Seven, Clubs),
+      Card(Nine, Spades)
     )
-    val combinacion = new TwoPair()
-    assert(combinacion.verifica(hand))
-    assertEquals(combinacion.score, Score(20, 2))
+    val combination = new TwoPair()
+    assert(combination.verify(hand))
+    assertEquals(combination.score.chips, 20)
+    assertEquals(combination.score.multiplier, 2)
   }
 
-  test("TwoPair no reconoce una mano inválida") {
+  test("TwoPair does not recognize an invalid hand") {
     val hand = List(
-      // TODO: cartas que no cumplan la condición
+      Card(Five, Hearts),
+      Card(Five, Spades),
+      Card(Six, Diamonds),
+      Card(Seven, Hearts),
+      Card(Nine, Spades)
     )
-    val combinacion = new TwoPair()
-    assert(!combinacion.verifica(hand))
+    val combination = new TwoPair()
+    assert(!combination.verify(hand))
   }
 }
diff --git a/src/test/scala/hand/HandTest.scala b/src/test/scala/hand/HandTest.scala
index 42e8417..2367d88 100644
--- a/src/test/scala/hand/HandTest.scala
+++ b/src/test/scala/hand/HandTest.scala
@@ -1,11 +1,28 @@
 package hand
 
 import munit.FunSuite
-import cards.{Card, Ace, Hearts}
-import jokers.Joker
+import cards._
+import jokers._
 
 class HandTest extends FunSuite {
+  test("Hand toString returns a string with cards and jokers") {
+    val hand = new Hand()
 
+    hand.addCard(new Card(Five, Hearts))
+    hand.addCard(new Card(King, Spades))
+
+    hand.addJoker(new Joker("Devious Joker"))
+    hand.addJoker(new Joker("Greedy Joker"))
+
+    val result = hand.toString
+
+    assert(result.contains("cards"))
+    assert(result.contains("jokers"))
+    assert(result.contains("Five"))
+    assert(result.contains("King"))
+    assert(result.contains("Devious Joker"))
+    assert(result.contains("Greedy Joker"))
+  }
   test("addCard should add a card to the hand") {
     val hand = new Hand
     val card = new Card(Ace, Hearts)