diff --git a/AdventOfCode.Solutions/2023/Day 01/Day01.cs b/AdventOfCode.Solutions/2023/Day 01/Day01.cs
new file mode 100644
index 0000000..bf4a73c
--- /dev/null
+++ b/AdventOfCode.Solutions/2023/Day 01/Day01.cs	
@@ -0,0 +1,65 @@
+using AdventOfCode.Core;
+using System.Text.RegularExpressions;
+
+namespace AdventOfCode.Solutions._2023
+{
+    public class Day01(InputReader reader) : IChallange
+    {
+        private readonly List<string> NumberMapping = ["zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine"];
+
+        private InputReader _inputReader = reader;
+
+        public async Task<string> GetSolutionPart1()
+        {
+            int sum = 0;
+            await foreach(string line in _inputReader.ReadAsStringLine())
+            {
+                // get all the numers
+                MatchCollection collection = Regex.Matches(line, @"\d");
+
+                // merge first and last index as one
+                string values = collection[0].Value + collection[^1].Value;
+
+                // make an int
+                sum += int.Parse(values);
+            }
+            return sum.ToString();
+        }
+
+        public async Task<string> GetSolutionPart2()
+        {
+            int sum = 0;
+            await foreach (string line in _inputReader.ReadAsStringLine())
+            {
+                string regex = @"(\d|one|two|three|four|five|six|seven|eight|nine)";
+
+                MatchCollection matchCollection = Regex.Matches(line, @"(\d)");
+                List<Match> captures = matchCollection.ToList();
+
+                // replace the text with numbers
+                captures.AddRange(Regex.Matches(line, @"(one)"));
+                captures.AddRange(Regex.Matches(line, @"(two)"));
+                captures.AddRange(Regex.Matches(line, @"(three)"));
+                captures.AddRange(Regex.Matches(line, @"(four)"));
+                captures.AddRange(Regex.Matches(line, @"(five)"));
+                captures.AddRange(Regex.Matches(line, @"(six)"));
+                captures.AddRange(Regex.Matches(line, @"(seven)"));
+                captures.AddRange(Regex.Matches(line, @"(eight)"));
+                captures.AddRange(Regex.Matches(line, @"(nine)"));
+
+                captures = captures.OrderBy(x => x.Index).ToList();
+
+                // merge first and last index as one
+                string values = GetStringAsNumber(captures.First().Value) + GetStringAsNumber(captures.Last().Value);
+                // make an int
+                sum += int.Parse(values);
+            }
+            return sum.ToString();
+        }
+
+        private string GetStringAsNumber(string value)
+        {
+            return value.Length == 1 ? value : NumberMapping.IndexOf(value).ToString();
+        }
+    }
+}
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diff --git a/AdventOfCode.Solutions/2023/Day 02/Day02.cs b/AdventOfCode.Solutions/2023/Day 02/Day02.cs
new file mode 100644
index 0000000..c3584ed
--- /dev/null
+++ b/AdventOfCode.Solutions/2023/Day 02/Day02.cs	
@@ -0,0 +1,79 @@
+using AdventOfCode.Core;
+using System.Text.RegularExpressions;
+
+namespace AdventOfCode.Solutions._2023
+{
+    public class Day02(InputReader reader) : IChallange
+    {
+        private InputReader _inputReader = reader;
+
+        public async Task<string> GetSolutionPart1()
+        {
+            int sum = 0;
+            await foreach(string line in _inputReader.ReadAsStringLine())
+            {
+                // get all the numers
+                string gameId = line.Split(':')[0].Split(' ')[1];
+                string[] dicePulls = line.Split(':')[1].Split(';');
+                bool impossible = false;
+
+                // parse the pulls
+                foreach (string dicePull in dicePulls)
+                {
+                    // regex the pull
+                    MatchCollection dice = Regex.Matches(dicePull, "(\\d+) (g|r|b)");
+                    foreach (Match match in dice)
+                    {
+                        string[] splitted = match.Value.Split(' ');
+                        int ammount = int.Parse(splitted[0]);
+
+                        if (ammount <= 12) // pass for all dice
+                            continue;
+
+                        if (ammount > 14 // fail for any dice set
+                            || (splitted[1] == "r" && ammount > 12)
+                            || (splitted[1] == "g" && ammount > 13))
+                            impossible = true; // not possible
+
+                        if (impossible) break;
+                    }
+
+                    if (impossible) break;
+                }
+
+                if (!impossible) 
+                {
+                    sum += int.Parse(gameId);
+                }
+            }
+            return sum.ToString();
+        }
+
+        public async Task<string> GetSolutionPart2()
+        {
+            int sum = 0;
+            await foreach (string line in _inputReader.ReadAsStringLine())
+            {
+                // get all the numers
+                string dicePulls = line.Split(':')[1];
+
+                // parse the pulls
+                MatchCollection dice = Regex.Matches(dicePulls, "(\\d+) (g|r|b)");
+                int red = 0, green = 0, blue = 0;
+                foreach (Match match in dice)
+                {
+                    string[] splitted = match.Value.Split(' ');
+                    int ammount = int.Parse(splitted[0]);
+
+                    if (splitted[1] == "r" && ammount > red) { red = ammount; }
+                    else if (splitted[1] == "g" && ammount > green) { green = ammount; }
+                    else if (splitted[1] == "b" && ammount > blue) { blue = ammount; }
+                }
+
+
+                sum += red * green * blue;
+            }
+            return sum.ToString();
+        }
+    }
+}
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