diff --git a/.idea/deploymentTargetDropDown.xml b/.idea/deploymentTargetDropDown.xml
index f0182ec..3330671 100644
--- a/.idea/deploymentTargetDropDown.xml
+++ b/.idea/deploymentTargetDropDown.xml
@@ -10,12 +10,12 @@
               <deviceKey>
                 <Key>
                   <type value="VIRTUAL_DEVICE_PATH" />
-                  <value value="$USER_HOME$/.android/avd/Pixel_3a_API_30_x86.avd" />
+                  <value value="$USER_HOME$/.android/avd/Pixel_API_28.avd" />
                 </Key>
               </deviceKey>
             </Target>
           </targetSelectedWithDropDown>
-          <timeTargetWasSelectedWithDropDown value="2024-01-13T21:47:11.103635Z" />
+          <timeTargetWasSelectedWithDropDown value="2024-02-16T18:18:09.020678Z" />
         </State>
       </entry>
     </value>
diff --git a/app/release/app-release.aab b/app/release/app-release.aab
new file mode 100644
index 0000000..e28c8b6
Binary files /dev/null and b/app/release/app-release.aab differ
diff --git a/app/src/main/java/com/avs/sea/battle/battle_field/BattleField.kt b/app/src/main/java/com/avs/sea/battle/battle_field/BattleField.kt
index 4820814..70ed022 100644
--- a/app/src/main/java/com/avs/sea/battle/battle_field/BattleField.kt
+++ b/app/src/main/java/com/avs/sea/battle/battle_field/BattleField.kt
@@ -48,27 +48,101 @@ class BattleField : BaseBattleField() {
         printBattleField()
     }
 
-    fun handleShot(coordinate: Coordinate?): Boolean {
+    fun handleShot(coordinate: Coordinate?): Pair<Boolean, ArrayList<Coordinate>> {
         var isShipHit = false
+        var killedShipCoordinates: ArrayList<Coordinate> = ArrayList()
         if (coordinate != null && coordinate.x in 0 until SQUARES_COUNT && coordinate.y in 0 until SQUARES_COUNT) {
             if (battleField[coordinate.x][coordinate.y]?.getCellState() == CellState.EMPTY) {
                 battleField[coordinate.x][coordinate.y]?.setCellState(CellState.SHOT_FAILURE)
             } else {
                 battleField[coordinate.x][coordinate.y]?.setCellState(CellState.SHOT_SUCCESS)
-                defineShipByCoordinate(coordinate)
                 isShipHit = true
+                val ship = getShipByCoordinate(coordinate)
+                ship?.let {
+                    it.setShotSuccessState(coordinate)
+                    if (it.isDead()) {
+                        markNeighbours(ship)
+                        killedShipCoordinates = getShipCoordinates(ship)
+                    }
+                }
+            }
+        }
+        return isShipHit to killedShipCoordinates
+    }
+
+    private fun markNeighbours(ship: Ship) {
+        if (ship.getShipOrientation() == Orientation.VERTICAL) {
+            markVerticalNeighbours(ship)
+        } else {
+            markHorizontalNeighbours(ship)
+        }
+    }
+
+    private fun markHorizontalNeighbours(ship: Ship) {
+        for (cell in ship.getShipCells()) {
+            if (cell.getX() != 0) battleField[cell.getX() - 1][cell.getY()]?.setCellState(CellState.SHOT_FAILURE)
+            if (cell.getX() != battleField.size - 1) battleField[cell.getX() + 1][cell.getY()]?.setCellState(
+                CellState.SHOT_FAILURE
+            )
+        }
+        val fistCell = ship.getShipCells().first()
+        if (fistCell.getY() != 0) {
+            battleField[fistCell.getX()][fistCell.getY() - 1]?.setCellState(CellState.SHOT_FAILURE)
+            if (fistCell.getX() != 0) {
+                battleField[fistCell.getX() - 1][fistCell.getY() - 1]?.setCellState(CellState.SHOT_FAILURE)
+            }
+            if (fistCell.getX() != battleField.size - 1) {
+                battleField[fistCell.getX() + 1][fistCell.getY() - 1]?.setCellState(CellState.SHOT_FAILURE)
+            }
+        }
+        val lastCell = ship.getShipCells().last()
+        if (lastCell.getY() != battleField.size - 1) {
+            battleField[lastCell.getX()][lastCell.getY() + 1]?.setCellState(CellState.SHOT_FAILURE)
+            if (lastCell.getX() != 0) {
+                battleField[lastCell.getX() - 1][lastCell.getY() + 1]?.setCellState(CellState.SHOT_FAILURE)
+            }
+            if (lastCell.getX() != battleField.size - 1) {
+                battleField[lastCell.getX() + 1][lastCell.getY() + 1]?.setCellState(CellState.SHOT_FAILURE)
             }
         }
-        return isShipHit
     }
 
-    private fun defineShipByCoordinate(coordinate: Coordinate) {
+    private fun markVerticalNeighbours(ship: Ship) {
+        for (cell in ship.getShipCells()) {
+            if (cell.getY() != 0) battleField[cell.getX()][cell.getY() - 1]?.setCellState(CellState.SHOT_FAILURE)
+            if (cell.getY() != battleField.size - 1) battleField[cell.getX()][cell.getY() + 1]?.setCellState(
+                CellState.SHOT_FAILURE
+            )
+        }
+        val fistCell = ship.getShipCells().first()
+        if (fistCell.getX() != 0) {
+            battleField[fistCell.getX() - 1][fistCell.getY()]?.setCellState(CellState.SHOT_FAILURE)
+            if (fistCell.getY() != 0) {
+                battleField[fistCell.getX() - 1][fistCell.getY() - 1]?.setCellState(CellState.SHOT_FAILURE)
+            }
+            if (fistCell.getY() != battleField.size - 1) {
+                battleField[fistCell.getX() - 1][fistCell.getY() + 1]?.setCellState(CellState.SHOT_FAILURE)
+            }
+        }
+        val lastCell = ship.getShipCells().last()
+        if (lastCell.getX() != battleField.size - 1) {
+            battleField[lastCell.getX() + 1][lastCell.getY()]?.setCellState(CellState.SHOT_FAILURE)
+            if (lastCell.getY() != 0) {
+                battleField[lastCell.getX() + 1][lastCell.getY() - 1]?.setCellState(CellState.SHOT_FAILURE)
+            }
+            if (lastCell.getY() != battleField.size - 1) {
+                battleField[lastCell.getX() + 1][lastCell.getY() + 1]?.setCellState(CellState.SHOT_FAILURE)
+            }
+        }
+    }
+
+    private fun getShipByCoordinate(coordinate: Coordinate): Ship? {
         for (ship in ships) {
             if (coordinate.x in ship.getRowCoordinates() && coordinate.y in ship.getColumnCoordinates()) {
-                ship.setShotSuccessState(coordinate)
-                break
+                return ship
             }
         }
+        return null
     }
 
     fun isGameOver(): Boolean {
@@ -94,12 +168,10 @@ class BattleField : BaseBattleField() {
         return shipsCoordinates
     }
 
-    fun getAllShipsCoordinates(): ArrayList<Coordinate> {
+    private fun getShipCoordinates(ship: Ship): ArrayList<Coordinate> {
         val shipsCoordinates = arrayListOf<Coordinate>()
-        ships.forEach { ship ->
-            ship.getShipCells().forEach { cell ->
-                shipsCoordinates.add(cell.getCoordinate())
-            }
+        ship.getShipCells().forEach { cell ->
+            shipsCoordinates.add(cell.getCoordinate())
         }
         return shipsCoordinates
     }
diff --git a/app/src/main/java/com/avs/sea/battle/main/MainActivity.kt b/app/src/main/java/com/avs/sea/battle/main/MainActivity.kt
index adf4e3e..9c84079 100644
--- a/app/src/main/java/com/avs/sea/battle/main/MainActivity.kt
+++ b/app/src/main/java/com/avs/sea/battle/main/MainActivity.kt
@@ -9,7 +9,6 @@ import android.util.Log
 import android.view.MenuItem
 import android.view.MotionEvent
 import android.view.View
-import android.widget.TextView
 import android.widget.Toast
 import androidx.appcompat.app.AppCompatActivity
 import androidx.appcompat.view.ContextThemeWrapper
@@ -118,12 +117,6 @@ class MainActivity : AppCompatActivity(), PopupMenu.OnMenuItemClickListener {
         }
     }
 
-    private fun setTextColor(v: View, color: Int) {
-        if (v is TextView) v.setTextColor(
-            ContextCompat.getColor(this, color)
-        )
-    }
-
     private fun showPopup(v: View?) {
         val wrapper: Context = ContextThemeWrapper(this, R.style.PopupStyle)
         if (v != null) {
diff --git a/app/src/main/java/com/avs/sea/battle/main/MainViewModel.kt b/app/src/main/java/com/avs/sea/battle/main/MainViewModel.kt
index e398ca3..9e7f5de 100644
--- a/app/src/main/java/com/avs/sea/battle/main/MainViewModel.kt
+++ b/app/src/main/java/com/avs/sea/battle/main/MainViewModel.kt
@@ -105,9 +105,12 @@ class MainViewModel : ViewModel() {
 
     fun makeFireAsPerson() {
         if (activePlayer == Player.PERSON) {
-            val isShipHit = computerBattleField.handleShot(_selectedByPersonCoordinate.value)
+            val shipState = computerBattleField.handleShot(_selectedByPersonCoordinate.value)
             _selectedByPersonCoordinate.value = null
-            if (isShipHit) {
+            if (shipState.first) {
+                if (shipState.second.isNotEmpty()) {
+                    _personFailShots.value = computerBattleField.getDotsCoordinates()
+                }
                 _status.value = R.string.status_shot_ship_again_text
                 _personSuccessfulShots.value = computerBattleField.getCrossesCoordinates()
                 if (computerBattleField.isGameOver()) {
@@ -127,12 +130,15 @@ class MainViewModel : ViewModel() {
     private fun playAsComputer() {
         val coordinate: Coordinate = shotManager.getCoordinateToShot()
         _selectedByComputerCoordinate.value = coordinate
-        val isShipHit = personBattleField.handleShot(coordinate)
-        shotManager.handleShot(isShipHit)
-        if (isShipHit) {
+        val shipState = personBattleField.handleShot(coordinate)
+        shotManager.handleShot(shipState)
+        if (shipState.first) {
             viewModelScope.launch {
                 delay(SECOND_IN_MILLIS)
                 _computerSuccessfulShots.value = personBattleField.getCrossesCoordinates()
+                if (shipState.second.isNotEmpty()) {
+                    _computerFailShots.value = personBattleField.getDotsCoordinates()
+                }
                 if (personBattleField.isGameOver()) {
                     endGame(false)
                 } else {
@@ -161,7 +167,7 @@ class MainViewModel : ViewModel() {
 
     private fun endGame(isPersonWon: Boolean) {
         activePlayer = Player.NONE
-        _computerShips.value = computerBattleField.getAllShipsCoordinates()
+        _computerShips.value = computerBattleField.getShipsCoordinates()
         if (isPersonWon) {
             _endGameEvent.value = true to Player.PERSON
             _status.value = R.string.status_game_over_you_win_text
diff --git a/app/src/main/java/com/avs/sea/battle/main/ShotManager.kt b/app/src/main/java/com/avs/sea/battle/main/ShotManager.kt
index 0a30868..d5088c4 100644
--- a/app/src/main/java/com/avs/sea/battle/main/ShotManager.kt
+++ b/app/src/main/java/com/avs/sea/battle/main/ShotManager.kt
@@ -22,29 +22,17 @@ class ShotManager {
         ONE_DECK_SHIP_SIZE, ONE_DECK_SHIP_SIZE, ONE_DECK_SHIP_SIZE, ONE_DECK_SHIP_SIZE
     )
 
-    fun getShipsSize(): Int {
-        return ships.size
-    }
+    fun getShipsSize(): Int = ships.size
 
-    fun getBattleField(): BaseBattleField {
-        return battleField
-    }
+    fun getBattleField(): BaseBattleField = battleField
 
-    fun getFirstCell(): Cell {
-        return firstCell
-    }
+    fun getFirstCell(): Cell = firstCell
 
-    fun getSecondCell(): Cell {
-        return secondCell
-    }
+    fun getSecondCell(): Cell = secondCell
 
-    fun getThirdCell(): Cell {
-        return thirdCell
-    }
+    fun getThirdCell(): Cell = thirdCell
 
-    fun getFourthCell(): Cell {
-        return fourthCell
-    }
+    fun getFourthCell(): Cell = fourthCell
 
     fun getCoordinateToShot(): Coordinate {
         var coordinate = Coordinate()
@@ -162,17 +150,17 @@ class ShotManager {
 
     fun getMaxCoordinate(list: MutableList<Coordinate>, orientation: Orientation): Coordinate {
         return if (orientation == Orientation.VERTICAL) {
-            list.maxByOrNull { it.x }!!
+            list.maxBy { it.x }
         } else {
-            list.maxByOrNull { it.y }!!
+            list.maxBy { it.y }
         }
     }
 
     fun getMinCoordinate(list: MutableList<Coordinate>, orientation: Orientation): Coordinate {
         return if (orientation == Orientation.VERTICAL) {
-            list.minByOrNull { it.x }!!
+            list.minBy { it.x }
         } else {
-            list.minByOrNull { it.y }!!
+            list.minBy { it.y }
         }
     }
 
@@ -267,7 +255,8 @@ class ShotManager {
         return firstCell.getCoordinate()
     }
 
-    fun handleShot(shipHit: Boolean) {
+    fun handleShot(shipState: Pair<Boolean, ArrayList<Coordinate>>) {
+        val shipHit = shipState.first
         if (firstCell.isState(EMPTY) || firstCell.isState(SHOT_FAILURE)) {
             updateBattleField(shipHit, firstCell)
         } else if (firstCell.isState(SHOT_SUCCESS)
@@ -294,6 +283,9 @@ class ShotManager {
                 markNeighbours(fourthCell)
             }
         }
+        if (shipState.second.isNotEmpty()) {
+            resetValuesAfterShipIsDead(shipState.second.size, shipState.second)
+        }
     }
 
     private fun markNeighbours(cell: Cell) {