diff --git a/py_conway/game.py b/py_conway/game.py
index dc7da7c..3666139 100644
--- a/py_conway/game.py
+++ b/py_conway/game.py
@@ -212,6 +212,18 @@ class Game:
         self.generations = 0
         self.live_cells = self._count_live_cells(self.current_board)
 
+    def reseed(self):
+        """Reseed the game board.
+
+        Should only be called when the game is not started. Calling when a game
+        is running will return silently.
+        """
+        if self.state != GameState.RUNNING:
+            self.seed = self._create_random_seed()
+            self.live_cells = self._count_live_cells(self.seed)
+            self.current_board = deepcopy(self.seed)
+            self.state = GameState.READY
+
     def run_generation(self):
         """Run a single generation across all cells.
 

Add method to re-seed the board
diff --git a/tests/test_conway.py b/tests/test_conway.py
index 76decfc..2cebdba 100644
--- a/tests/test_conway.py
+++ b/tests/test_conway.py
@@ -1,4 +1,5 @@
 import pytest
+from copy import deepcopy
 
 import os
 import sys
@@ -370,3 +371,24 @@ def test_start_can_be_used_to_restart_the_game():
     test_game.start()
 
     assert test_game.current_board == random_seed
+
+
+def test_reseed_can_be_used_to_create_a_new_random_seed():
+    test_game = Game(random=True)
+
+    first_random_seed = deepcopy(test_game.current_board)
+
+    test_game.reseed()
+
+    assert first_random_seed != test_game.current_board
+
+
+def test_cannot_reseed_when_game_is_active():
+    test_game = Game(random=True)
+
+    first_random_seed = deepcopy(test_game.current_board)
+
+    test_game.start()
+    test_game.reseed()
+
+    assert first_random_seed == test_game.current_board

pip install -e .[dev]
parse_log_pytest
requirements.txt
pytest>=4.4.0 pytest-cov pytest-ordering pytest-subtests pytest-timeout pytest
3.9
requirements-dev.txt
pytest --no-header -rA --tb=line --color=no -p no:cacheprovider -W ignore::DeprecationWarning
attrs==25.3.0
coverage==7.8.0
exceptiongroup==1.2.2
iniconfig==2.1.0
packaging==24.2
pluggy==1.5.0
-e git+https://github.com/bsatrom/py-conway.git@1f4904b79e5e164a41ecc1f442ecfa3a7b2f811e#egg=py_conway
pytest==8.3.5
pytest-cov==6.0.0
pytest-ordering==0.6
pytest-subtests==0.14.1
pytest-timeout==2.3.1
tomli==2.2.1

name: py-conway
channels:
  - defaults
  - https://repo.anaconda.com/pkgs/main
  - https://repo.anaconda.com/pkgs/r
  - conda-forge
dependencies:
  - _libgcc_mutex=0.1=main
  - _openmp_mutex=5.1=1_gnu
  - ca-certificates=2025.2.25=h06a4308_0
  - ld_impl_linux-64=2.40=h12ee557_0
  - libffi=3.4.4=h6a678d5_1
  - libgcc-ng=11.2.0=h1234567_1
  - libgomp=11.2.0=h1234567_1
  - libstdcxx-ng=11.2.0=h1234567_1
  - ncurses=6.4=h6a678d5_0
  - openssl=3.0.16=h5eee18b_0
  - pip=25.0=py39h06a4308_0
  - python=3.9.21=he870216_1
  - readline=8.2=h5eee18b_0
  - setuptools=75.8.0=py39h06a4308_0
  - sqlite=3.45.3=h5eee18b_0
  - tk=8.6.14=h39e8969_0
  - tzdata=2025a=h04d1e81_0
  - wheel=0.45.1=py39h06a4308_0
  - xz=5.6.4=h5eee18b_1
  - zlib=1.2.13=h5eee18b_1
  - pip:
      - attrs==25.3.0
      - coverage==7.8.0
      - exceptiongroup==1.2.2
      - iniconfig==2.1.0
      - packaging==24.2
      - pluggy==1.5.0
      - pytest==8.3.5
      - pytest-cov==6.0.0
      - pytest-ordering==0.6
      - pytest-subtests==0.14.1
      - pytest-timeout==2.3.1
      - tomli==2.2.1
prefix: /opt/conda/envs/py-conway

tests/test_conway.py::test_reseed_can_be_used_to_create_a_new_random_seed tests/test_conway.py::test_cannot_reseed_when_game_is_active
tests/test_conway.py::test_game_init tests/test_conway.py::test_test_game_init_seed tests/test_conway.py::test_test_game_init_defaults tests/test_conway.py::test_test_game_init_board_default_seed tests/test_conway.py::test_test_game_3_x_3_check_cell_with_one_neighbor tests/test_conway.py::test_test_game_3_x_3_check_cell_with_two_neighbors tests/test_conway.py::test_test_game_3_x_3_check_cell_with_three_neighbors tests/test_conway.py::test_single_column_array tests/test_conway.py::test_3_x_3_single_cell_single_run tests/test_conway.py::test_3_x_3_three_neighbors_single_run tests/test_conway.py::test_3_x_3_four_neighbors_single_run tests/test_conway.py::test_4_x_3_three_neighbors_single_run tests/test_conway.py::test_3_x_3_empty_seed_no_live_cells tests/test_conway.py::test_3_x_3_seed_five_live_cells tests/test_conway.py::test_increment_live_cells_after_update tests/test_conway.py::test_update_generations_count_after_each_generation tests/test_conway.py::test_3_x_3_four_neighbors_two_runs tests/test_conway.py::test_default_game_state_ready tests/test_conway.py::test_start_game_changes_state_to_running tests/test_conway.py::test_empty_board_run_game_until_no_living_cells_left tests/test_conway.py::test_ensure_that_width_height_and_seed_match tests/test_conway.py::test_ensure_that_live_cells_count_is_accurate_before_run tests/test_conway.py::test_no_seed_ensure_live_cells_count_is_accurate_before_run tests/test_conway.py::test_still_life_game_will_continue_to_run tests/test_conway.py::test_still_life_game_can_be_stopped tests/test_conway.py::test_ensure_that_seed_includes_valid_data tests/test_conway.py::test_generate_random_seed_generates_random_seed tests/test_conway.py::test_enable_boundary_wrapping_on_board tests/test_conway.py::test_dont_run_generation_when_game_not_started tests/test_conway.py::test_start_can_be_used_to_restart_the_game
py_conway/game.py
py_conway/game.py