diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..20928d5
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+VENV
+__pycache__
+teg.py
diff --git a/README.md b/README.md
index 280e237..251b6e2 100644
--- a/README.md
+++ b/README.md
@@ -25,3 +25,11 @@ wyplata(2, [1/2,1/2,0], [1/4,3/4], [[0,0],[2,-1],[-1,2]], [[2,2],[0,1],[1,0]] )
 wynosi 11/8.
 
 ---
+
+#### Zadanie 3:
+
+_zdominowana.py_
+
+Funkcja sprawdzająca, czy jedna strategia jest zdominowana (dla danego gracza w grze 2-osobowej).
+
+---
diff --git a/zdominowana.py b/zdominowana.py
new file mode 100755
index 0000000..bc313e9
--- /dev/null
+++ b/zdominowana.py
@@ -0,0 +1,18 @@
+#!VENV/bin/python3
+
+from teg import dominuje, wyplata
+#from scipy.optimize import linprog
+
+def zdominowana(player, strategy, payment_matrix_one, payment_matrix_two):
+    for i in range(0,len(payment_matrix_one if player == 1 else payment_matrix_two[0])):
+        strategy_check = [0 for p in strategy]
+        strategy_check[i] = 1
+        if( strategy == strategy_check ):
+            continue
+        if( dominuje(player, strategy_check, strategy, payment_matrix_one, payment_matrix_two ) == True ):
+                return True
+
+    return False
+
+x = zdominowana(2,[1, 0,0],[[0,0,0],[0,0,0]],[[0,1,2],[0,1,2]])
+print(x)