diff --git a/include/elements.hpp b/include/elements.hpp
index ebe15a9..d02fed0 100644
--- a/include/elements.hpp
+++ b/include/elements.hpp
@@ -4,13 +4,13 @@
 #include <vector>
 
 struct Point {
-	Point() : m_row(0), m_col(0), m_id(0), m_active(true) {}
-	Point(int row, int col, int id) : m_row(row), m_col(col), m_id(id), m_active(true) {}
+	Point() : m_row(0), m_col(0), m_id(0) {}
+	Point(int row, int col, int id) : m_row(row), m_col(col), m_id(id) {}
 	int m_row;
 	int m_col;
 	int m_id;
-	bool m_active;
 	char m_symbol;
+	void to_string();
 	void assign(int row, int col);
 	void move();
 	void check_collision(std::vector<Point> &points_list);
@@ -20,7 +20,6 @@ struct Player {
 	Player(char symbol, bool turn) : m_symbol(symbol), m_turn(turn) {}
 	char m_symbol;
 	bool m_turn;
-	std::vector<Point> m_points;
 	void input_tile(int col, std::vector<Point> &points);
 };
 
diff --git a/include/window.hpp b/include/window.hpp
index b3b1a7b..7d90181 100644
--- a/include/window.hpp
+++ b/include/window.hpp
@@ -9,6 +9,7 @@
 struct Window {
 	std::array<std::array<char, COL>, ROW> m_board = {};
 	void update_display(std::vector<Point> &points_list);
+	bool check_chain();
 };
 
 #endif
diff --git a/src/elements.cpp b/src/elements.cpp
index b3fb80d..9fd3bb0 100644
--- a/src/elements.cpp
+++ b/src/elements.cpp
@@ -1,6 +1,7 @@
 #include "elements.hpp"
 #include "globals.hpp"
 #include <vector>
+#include <iostream>
 
 void Point::assign(int row, int col) {
 	m_row = row;
@@ -13,13 +14,16 @@ void Point::move() {
 	}
 }
 
+void Point::to_string() {
+	std::cout << "(" << m_row << ", " << m_col << ")";
+}
+
 void Point::check_collision(std::vector<Point> &points_list) {;
 	for(int i = 0; i < points_list.size(); i++) {
 		if(points_list[i].m_id == m_id) continue;
 		if(points_list[i].m_row != m_row) continue;
 		if(points_list[i].m_col != m_col) continue;
 		m_row = points_list[i].m_row - 1;
-		m_active = false;
 	}
 }
 
diff --git a/src/main.cpp b/src/main.cpp
index 33d8874..59bacbe 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -14,14 +14,34 @@ int main() {
 
 	bool running = true;
 	std::thread input_thread(&Input::get_input, &input, std::ref(running), std::ref(one), std::ref(two), std::ref(points_list));
+	char symbol = ' ';
+	bool d = true;
+	bool result = false;
 	while(running) {
 		window.update_display(points_list);
 		for(int i = 0; i < points_list.size(); i++) {
-			if(!points_list[i].m_active) continue;
 			points_list[i].move();
 			points_list[i].check_collision(points_list);
 		}
-		std::cout << points_list.size() << std::endl;
+		for(int i = 0; i < ROW - 1; i++) {
+			for(int j = 0; j < COL - 1; j++) {
+				if(window.m_board[i][j] == ' ') continue;
+				symbol = window.m_board[i][j];
+				d = true;
+				if(d) {
+					for(int k = 1; k <= 3; k++) {
+						if(window.m_board[i][j + k] != symbol) d = false;
+					}
+					if(d) {
+						result = true;
+					}
+				}
+			}
+		}
+		// if(window.check_chain()) {
+		// 	std::cout << "Chain is active" << std::endl;
+		// }
+		std::cout << result << std::endl;
 	}
 
 	input_thread.join();
diff --git a/src/window.cpp b/src/window.cpp
index bc17ce8..a244dc5 100644
--- a/src/window.cpp
+++ b/src/window.cpp
@@ -3,6 +3,7 @@
 #include <chrono>
 #include <thread>
 
+
 void Window::update_display(std::vector<Point> &points_list) {
 	for(std::array<char, COL> &row : m_board) { row.fill('.'); }
 	for(int i = 0; i < points_list.size(); i++) {
@@ -18,3 +19,25 @@ void Window::update_display(std::vector<Point> &points_list) {
 	}
 	std::this_thread::sleep_for(std::chrono::milliseconds(200)); // 1000 / fps; 200ms = 5fps
 }
+
+bool Window::check_chain() {
+	char symbol = ' ';
+	bool d = true;
+	bool result = false;
+	for(int i = 0; i < ROW - 1; i++) {
+		for(int j = 0; j < COL - 1; j++) {
+			if(m_board[i][j] == ' ') continue;
+			symbol = m_board[i][j];
+			d = true;
+			if(d) {
+				for(int k = 1; k <= 3; k++) {
+					if(m_board[i][j + k] != symbol) d = false;
+				}
+				if(d) {
+					result = true;
+				}
+			}
+		}
+	}
+	return result;
+}