diff --git a/aoc_cas/aoc2023/day1.py b/aoc_cas/aoc2023/day1.py
index 2cd7309..f4bddca 100644
--- a/aoc_cas/aoc2023/day1.py
+++ b/aoc_cas/aoc2023/day1.py
@@ -1,4 +1,4 @@
-from aoc_cas.util import test_with_examples
+from aoc_cas.util import solve_with_examples
 
 
 def part_a(data) -> int:
@@ -39,4 +39,4 @@ def part_b(data) -> int:
 
 
 if __name__ == "__main__":
-    test_with_examples(2023, 1)
+    solve_with_examples(2023, 1)
diff --git a/aoc_cas/aoc2023/day2.py b/aoc_cas/aoc2023/day2.py
new file mode 100644
index 0000000..d9866fd
--- /dev/null
+++ b/aoc_cas/aoc2023/day2.py
@@ -0,0 +1,45 @@
+import dataclasses
+from collections import defaultdict
+from typing import Self
+
+from aoc_cas.util import solve_with_examples
+
+
+@dataclasses.dataclass(frozen=True)
+class Round:
+    id: int
+    red: int = 0
+    blue: int = 0
+    green: int = 0
+
+    @classmethod
+    def from_data_line(cls, line: str) -> Self:
+        game_part, cube_part = line.split(": ")
+        game_id = int(game_part.split(" ")[1])
+
+        most_seen: dict[str, int] = defaultdict(int)
+        for cube_set in cube_part.split("; "):
+            for draw in cube_set.split(", "):
+                count, color = draw.split(" ")
+                most_seen[color] = max(most_seen[color], int(count))
+
+        return Round(game_id, **most_seen)
+
+
+def part_a(data: str) -> int:
+    result = 0
+    for round in map(Round.from_data_line, data.splitlines()):
+        if round.red <= 12 and round.green <= 13 and round.blue <= 14:
+            result += round.id
+    return result
+
+
+def part_b(data: str) -> int:
+    result = 0
+    for round in map(Round.from_data_line, data.splitlines()):
+        result += round.blue * round.green * round.red
+    return result
+
+
+if __name__ == "__main__":
+    solve_with_examples(year=2023, day=2)
diff --git a/aoc_cas/cli.py b/aoc_cas/cli.py
index 2e55313..2b71ebd 100644
--- a/aoc_cas/cli.py
+++ b/aoc_cas/cli.py
@@ -23,12 +23,12 @@ def main():
 def solve(year: int, day: int, submit: bool) -> None:
     puzzle = Puzzle(year, day)
     log.info(f"--- {year} Day {day}: {puzzle.title} ---")
-    part_1_result, part_2_result = plugin(year, day)
-    log.info(f"PartA: {part_1_result}")
-    log.info(f"PartB: {part_2_result}")
+    part_a_result, part_b_result = plugin(year=year, day=day, data=puzzle.input_data)
+    log.info(f"PartA: {part_a_result}")
+    log.info(f"PartB: {part_b_result}")
     if submit:
-        puzzle.answer_a = part_1_result
-        puzzle.answer_2 = part_2_result
+        puzzle.answer_a = part_a_result
+        puzzle.answer_b = part_b_result
 
 
 @main.command()
@@ -42,7 +42,7 @@ def init_challenge(year: int, day: int) -> None:
         year_folder.joinpath("__init__.py").touch()
     python_file = year_folder / f"day{day}.py"
     if not python_file.exists():
-        python_file.write_text(challenge_template.format(day, year))
+        python_file.write_text(challenge_template.format(day=day, year=year))
 
     test_folder = Path.cwd() / f"tests/fixtures/{year}"
     test_folder.mkdir(exist_ok=True)
diff --git a/aoc_cas/util.py b/aoc_cas/util.py
index 46afcfa..f98b898 100644
--- a/aoc_cas/util.py
+++ b/aoc_cas/util.py
@@ -8,7 +8,7 @@ def load_module(year: int, day: int):
     return importlib.import_module(module_name)
 
 
-def test_with_examples(year: int, day: int) -> None:
+def solve_with_examples(year: int, day: int) -> None:
     mod = load_module(year, day)
     puzzle = Puzzle(year, day)
     print(f"Testing example data")
@@ -19,6 +19,6 @@ def test_with_examples(year: int, day: int) -> None:
             correct = part_a_result == example.answer_a
             print(f"{'❌✅'[correct]} [Part A] Actual: {part_a_result} - Expected: {example.answer_a}")
         if example.answer_b is not None:
-            part_b_result = mod.part_b(example.input_data)
-            correct = part_b_result == example.answer_a
+            part_b_result = str(mod.part_b(example.input_data))
+            correct = part_b_result == example.answer_b
             print(f"{'❌✅'[correct]} [Part B] Actual: {part_b_result} - Expected: {example.answer_b}\n")
diff --git a/challenge_template.txt b/challenge_template.txt
index 06336b2..0020c32 100644
--- a/challenge_template.txt
+++ b/challenge_template.txt
@@ -1,12 +1,12 @@
-from aoc_cas.util import test_with_examples
+from aoc_cas.util import solve_with_examples
 
 
-def part_a(data) -> int:
+def part_a(data: str) -> int:
     pass
 
 
-def part_b(data) -> int:
+def part_b(data: str) -> int:
     pass
 
 if __name__ == "__main__":
-    test_with_examples({}, {})
+    solve_with_examples(year={year}, day={day})
diff --git a/tests/fixtures/2023/2.txt b/tests/fixtures/2023/2.txt
new file mode 100644
index 0000000..feae538
--- /dev/null
+++ b/tests/fixtures/2023/2.txt
@@ -0,0 +1,7 @@
+Game 1: 3 blue, 4 red; 1 red, 2 green, 6 blue; 2 green
+Game 2: 1 blue, 2 green; 3 green, 4 blue, 1 red; 1 green, 1 blue
+Game 3: 8 green, 6 blue, 20 red; 5 blue, 4 red, 13 green; 5 green, 1 red
+Game 4: 1 green, 3 red, 6 blue; 3 green, 6 red; 3 green, 15 blue, 14 red
+Game 5: 6 red, 1 blue, 3 green; 2 blue, 1 red, 2 green
+8
+2286
\ No newline at end of file