diff --git a/src/game_ui.py b/src/game_ui.py
index 1d2214f..6eb8d7e 100644
--- a/src/game_ui.py
+++ b/src/game_ui.py
@@ -2,7 +2,7 @@ import pygame as pg
 
 from agent import Agent
 from environment import Environment
-from const import WIDTH, HEIGHT, IMAGES, SAPPER_IDLE
+from const import WIDTH, HEIGHT, IMAGES, SAPPER_IDLE, ROCK_INDEXES, SAPPER_KABOOM
 
 
 class GameUi:
@@ -17,10 +17,10 @@ class GameUi:
         shift = -1 if self.agent.direction in (0, 3) else 1
         
         if coord == 'x':
-            if self.env.field[self.agent.y][self.agent.x+shift].number in (2, 3):
+            if self.env.field[self.agent.y][self.agent.x+shift].number in ROCK_INDEXES:
                 return
         elif coord == 'y':
-            if self.env.field[self.agent.y+shift][self.agent.x].number in (2, 3):
+            if self.env.field[self.agent.y+shift][self.agent.x].number in ROCK_INDEXES:
                 return
 
         for x in range(8):
@@ -46,3 +46,10 @@ class GameUi:
         self.agent.direction = (self.agent.direction + direction) % 4
         self.agent.img = SAPPER_IDLE[self.agent.direction]
         self.update()
+
+    def kaboom(self):
+        self.agent.img = SAPPER_KABOOM[self.agent.direction]
+        self.update()
+        pg.time.delay(500)
+        self.agent.img = SAPPER_IDLE[self.agent.direction]
+        self.update()
diff --git a/src/search_algoritms/helpers.py b/src/search_algoritms/helpers.py
index c8eb4ac..acb3dbe 100644
--- a/src/search_algoritms/helpers.py
+++ b/src/search_algoritms/helpers.py
@@ -3,6 +3,7 @@ from typing import List, Tuple
 import pygame as pg
 
 from src.tile import Tile
+from const import ROCK_INDEXES
 from search_algoritms.node import Node
 
 
@@ -30,9 +31,9 @@ def successor(field: List[List[Tile]], x: int, y: int, direction: int):
     neighbours.append((x, y, (direction - 1) % 4, pg.K_a))
     neighbours.append((x, y, (direction + 1) % 4, pg.K_d))
 
-    if coord == 'x' and 0 <= x + shift <= 9 and field[y][x + shift].number not in (2, 3):
+    if coord == 'x' and 0 <= x + shift <= 9 and field[y][x + shift].number not in ROCK_INDEXES:
         neighbours.append((x + shift, y, direction, pg.K_w))
-    elif coord == 'y' and 0 <= y + shift <= 9 and field[y + shift][x].number not in (2, 3):
+    elif coord == 'y' and 0 <= y + shift <= 9 and field[y + shift][x].number not in ROCK_INDEXES:
         neighbours.append((x, y + shift, direction, pg.K_w))
 
     return neighbours