diff --git a/pyproject.toml b/pyproject.toml
index 364d09a..8e3432c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,9 +7,10 @@ readme = "README.md"
 requires-python = ">=3.11"
 license = { text = "GPLv3" }
 dependencies = [
-  "loguru==0.7.2",
   "attrs==23.1.0",
+  "loguru==0.7.2",
   "neat-python==0.92",
+  "numpy==1.26.3",
   "pygame-ce==2.4.0",
 ]
 
diff --git a/requirements.txt b/requirements.txt
index f3fc5af..56c1f94 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,6 @@
-loguru>=0.7.2
 attrs>=23.1.0
+loguru>=0.7.2
 neat-python>=0.92
+numpy>=1.26.3
 pygame-ce>=2.4.0
 .
diff --git a/src/game/block.py b/src/game/block.py
index ad6e021..9ffd441 100644
--- a/src/game/block.py
+++ b/src/game/block.py
@@ -1,10 +1,16 @@
+import numpy as np
 import pygame
 from utils import CONFIG, Size
 
 
 class Block(pygame.sprite.Sprite):
     def __init__(
-        self, /, *, group: pygame.sprite.Group, pos: pygame.Vector2, color: str
+        self,
+        /,
+        *,
+        group: pygame.sprite.Group,
+        pos: pygame.Vector2,
+        color: str,
     ) -> None:
         super().__init__(group)
         self.image = pygame.Surface(CONFIG.game.cell)
@@ -16,8 +22,8 @@ class Block(pygame.sprite.Sprite):
     def update(self) -> None:
         self.rect.topleft = self.pos * CONFIG.game.cell.width
 
-    def vertical_collision(self, x: int) -> bool:
-        return not 0 <= x < CONFIG.game.columns
+    def vertical_collision(self, x: int, field: np.ndarray) -> bool:
+        return not 0 <= x < CONFIG.game.columns or field[int(self.pos.y), x]
 
     def horizontal_collision(self, y: int) -> bool:
         return y >= CONFIG.game.rows
diff --git a/src/game/game.py b/src/game/game.py
index 5a64dd2..0dab9ff 100644
--- a/src/game/game.py
+++ b/src/game/game.py
@@ -1,6 +1,10 @@
-import pygame
-from utils import CONFIG, Direction, Figure
+from typing import Optional
 
+import numpy as np
+import pygame
+from utils import CONFIG, Direction, Field, Figure
+
+from .block import Block
 from .log import log
 from .tetromino import Tetromino
 from .timer import Timer, Timers
@@ -12,10 +16,17 @@ class Game:
         self.dispaly_surface = pygame.display.get_surface()
         self.rect = self.surface.get_rect(topleft=CONFIG.game.pos)
 
+        self.sprites: pygame.sprite.Group[Block] = pygame.sprite.Group()
+
         self._create_grid_surface()
 
-        self.sprites = pygame.sprite.Group()
-        self.tetromino = Tetromino(self.sprites, self.create_new_tetromino)
+        self.field = np.full((CONFIG.game.rows, CONFIG.game.columns), None, dtype=Field)
+
+        self.tetromino = Tetromino(
+            self.sprites,
+            self.create_new_tetromino,
+            self.field,
+        )
 
         self.timers = Timers(
             Timer(CONFIG.game.initial_speed, True, self.move_down),
@@ -63,7 +74,11 @@ class Game:
         self.tetromino.move_horizontal(Direction.RIGHT)
 
     def create_new_tetromino(self) -> None:
-        self.tetromino = Tetromino(self.sprites, self.create_new_tetromino)
+        self.tetromino = Tetromino(
+            self.sprites,
+            self.create_new_tetromino,
+            self.field,
+        )
 
     def _create_grid_surface(self) -> None:
         self.grid_surface = self.surface.copy()
diff --git a/src/game/tetromino.py b/src/game/tetromino.py
index e4d6725..6e6c1f7 100644
--- a/src/game/tetromino.py
+++ b/src/game/tetromino.py
@@ -1,22 +1,26 @@
 from typing import Callable, Optional
 
+import numpy as np
 import pygame
 from utils import CONFIG, Direction, Figure, FigureConfig, Size
 
 from .block import Block
+from .log import log
 
 
 class Tetromino:
     def __init__(
         self,
         group: pygame.sprite.Group,
-        func: Callable[[None], None],
+        func: Callable[[], None],
+        field: np.ndarray,
         shape: Optional[Figure] = None,
     ) -> None:
         self.figure: FigureConfig = shape.value if shape else Figure.random().value
         self.block_positions: list[pygame.Vector2] = self.figure.shape
         self.color: str = self.figure.color
         self.create_new = func
+        self.field = field
 
         self.blocks = [
             Block(group=group, pos=pos, color=self.color)
@@ -28,6 +32,8 @@ class Tetromino:
             for block in self.blocks:
                 block.pos.y += 1
         else:
+            for block in self.blocks:
+                self.field[int(block.pos.y), int(block.pos.x)] = block
             self.create_new()
 
     def move_horizontal(self, direction: Direction) -> None:
@@ -39,7 +45,7 @@ class Tetromino:
         self, blocks: list[Block], direction: Direction
     ) -> bool:
         return any(
-            block.vertical_collision(int(block.pos.x + direction.value))
+            block.vertical_collision(int(block.pos.x + direction.value), self.field)
             for block in self.blocks
         )
 
diff --git a/src/game/timer.py b/src/game/timer.py
index baedd09..c46e670 100644
--- a/src/game/timer.py
+++ b/src/game/timer.py
@@ -8,7 +8,7 @@ from attrs import define, field
 class Timer:
     duration: int = field(converter=int)
     repeated: bool = field(default=False)
-    func: Optional[Callable[[None], None]] = field(default=None)
+    func: Optional[Callable[[], None]] = field(default=None)
     start_time: int = 0
     active: bool = False
 
diff --git a/src/utils/__init__.py b/src/utils/__init__.py
index b37ed9d..954d5af 100644
--- a/src/utils/__init__.py
+++ b/src/utils/__init__.py
@@ -1,5 +1,5 @@
 from .config import CONFIG
-from .direction import Direction
+from .enum import Direction, Field
 from .figure import Figure, FigureConfig
 from .log import log
 from .path import BASE_PATH
@@ -13,4 +13,5 @@ __all__ = [
     "Figure",
     "FigureConfig",
     "Direction",
+    "Field",
 ]
diff --git a/src/utils/direction.py b/src/utils/enum.py
similarity index 62%
rename from src/utils/direction.py
rename to src/utils/enum.py
index 5016766..bff8c2a 100644
--- a/src/utils/direction.py
+++ b/src/utils/enum.py
@@ -6,3 +6,8 @@ class Direction(Enum):
     RIGHT = 1
     DOWN = 1
     UP = -1
+
+
+class Field(Enum):
+    EMPTY = None
+    FILLED = "Block"
diff --git a/src/utils/figure.py b/src/utils/figure.py
index 15116ac..fb2fb48 100644
--- a/src/utils/figure.py
+++ b/src/utils/figure.py
@@ -9,7 +9,7 @@ from .colors import TokyoNightNight
 
 
 class FigureConfig(NamedTuple):
-    shape: list[Vec2, Vec2, Vec2, Vec2]
+    shape: list[Vec2]
     color: str