diff --git a/C++/SimpleGames/tic tac toe on minimax algo.cpp b/C++/SimpleGames/tic tac toe on minimax algo.cpp
new file mode 100644
index 00000000..eddd8c75
--- /dev/null
+++ b/C++/SimpleGames/tic tac toe on minimax algo.cpp	
@@ -0,0 +1,756 @@
+#include<stdio.h>
+#include<conio.h>
+#include<dos.h>
+#include<graphics.h>
+#include<stdlib.h>
+#define COMPUTER 1 
+#define HUMAN 2 
+
+#define SIDE 3 // Length of the board 
+
+// Computer will move with 'O' 
+// and human with 'X' 
+#define COMPUTERMOVE 'O' 
+#define HUMANMOVE 'X' 
+
+void Board();
+void PlayerX();
+void PlayerO();
+void Player_win();
+void check();
+int win=0,wrong_X=0,wrong_O=0,chk=0;
+void T(int ,int);
+void C(int ,int);
+void A(); void I();
+void O(); void E();
+void CIR(int);
+void SCR(int ,int);
+void start();
+void playTicTacToe(int);
+
+
+
+char name_X[30];
+char name_O[30];
+int pos_for_X[3][3];
+int pos_for_O[3][3];
+int pos_marked[3][3];
+
+void main(){
+	int i,ch,j;
+	char ans;
+	start();
+	do
+	{
+		clrscr();
+		printf("\n\t\t\t\tTIC TAC TOE  BY AMULYA");
+		printf("\n\t\t\t\t");
+		delay(2000);
+		for(i=1;i<=23;i++)
+		{
+			delay(100);
+			printf("*");
+		}
+		printf("\n1.Start The Game against human");
+		printf("\n2.Quit The Game");
+		printf("\n3.Play against PC");
+
+		printf("\nEnter your choice(1-3) : ");
+		scanf("%d",&ch);
+		switch(ch)
+		{
+			case 1:
+				chk=0;
+				win=0;
+				for(i=1;i<=3;i++)
+				{
+					for(j=1;j<=3;j++)
+					{
+						pos_for_X[i][j]=0;
+						pos_for_O[i][j]=0;
+						pos_marked[i][j]=0;
+					}
+				}
+				printf("\n\n");
+				clrscr();
+				printf("\nEnter the name of the player playing for \'X\': ");
+				fflush(stdin);
+				gets(name_X);
+				printf("\nEnter the name of the player playing for \'O\': ");
+				fflush(stdin);
+				gets(name_O);
+				Board();
+				for(;;)
+				{
+					if(win==1)
+						break;
+					check();
+					if(chk==9)
+					{
+						printf("\n\t\t\tMATCH DRAWS!!");
+						printf("\nPress any key....");
+						break;
+					}
+					else
+						chk=0;
+					printf("\nTURN FOR %s:",name_X);
+					PlayerX();
+					do
+					{
+						if(wrong_X!=1)
+							break;
+						wrong_X=0;
+						printf("\nTURN FOR %s:",name_X);
+						PlayerX();
+					}while(wrong_X==1);
+					check();
+					if(chk==9)
+					{
+						printf("\n\t\t\tMATCH DRAWS");
+						printf("\nPress any key....");
+						break;
+					}
+					else
+						chk=0;
+					printf("\nTURN FOR %s:",name_O);
+					PlayerO();
+					do
+					{
+						if(wrong_O!=1)
+							break;
+						wrong_O=0;
+						printf("\nTURN FOR %s:",name_O);
+						PlayerO();
+					}while(wrong_O==1);
+
+					}
+				Board();
+				if(win!=1)
+				{
+					printf("\n\t\t\tMATCH DRAWS!!");
+					printf("\nPress any key.......");
+				}
+				getch();
+				break;
+			case 2:
+				printf("\n\n\nThank You For Playing The Game.");
+				printf("\n");
+				printf("\nCreated By:AMULYA KUMAR MAURYA\n");
+				printf("INSTITUTION:CHANDIGARH UNIVERSITY\n");
+				printf("Department: Computer Science & Engineering");
+				getch();
+				exit(1);
+				break;
+			case 3:
+				printf("\n-------------------------------------------------------------------\n\n");
+				printf("\t\t\t Tic-Tac-Toe\n"); 
+				printf("\n-------------------------------------------------------------------\n\n");
+				char cont='y';
+			do {
+				char choice;
+	 			printf("Do you want to start first?(y/n) : ");
+	 			scanf(" %c", &choice);
+
+				if(choice=='n')
+				playTicTacToe(COMPUTER);
+				else if(choice=='y')
+				playTicTacToe(HUMAN);
+				else
+				printf("Invalid choice\n"); 
+        
+				printf("\nDo you want to quit(y/n) : ");
+     	  		scanf(" %c", &cont);
+				} while(cont=='n');
+				getch();
+				exit(1);
+				break;
+		}
+		printf("\nWant To Play(Y/N) ? ");
+		fflush(stdin);
+		scanf("%c",&ans);
+	}while(ans=='y' || ans=='Y');
+}
+
+
+void Board()
+{
+	int i,j;
+	clrscr();
+	printf("\n\t\t\t\tTIC TAC TOE BOARD");
+	printf("\n\t\t\t\t*****************");
+	printf("\n\n\n");
+	printf("\n\t\t\t    1\t      2\t        3") ;
+	for(i=1;i<=3;i++)
+	{
+		printf("\n \t\t\t _____________________________");
+		printf("\n \t\t\tº\t  º\t   º\t     º");
+		printf("\n\t\t%d\t",i);
+		for(j=1;j<=3;j++)
+		{
+
+			if(pos_for_X[i][j]==1)
+			{
+				printf("    X");
+				printf("     ");
+			}
+			else if(pos_for_O[i][j]==1)
+			{
+				printf("    O");
+				printf("     ");
+			}
+			else
+			{
+				printf("          ");
+				continue;
+			}
+		}
+		printf("\n\t\t\tº\t  º\t   º\t     º");
+	}
+	printf("\n\t\t\t------------------------------");
+	Player_win();
+}
+
+
+void PlayerX()
+{
+	int row,col;
+	if(win==1)
+		return;
+	printf("\nEnter the row no. : ");
+	fflush(stdin);
+	scanf("%d",&row);
+	printf("Enter the column no. : ");
+	fflush(stdin);
+	scanf("%d",&col);
+	if(pos_marked[row][col]==1 || row<1 || row>3 || col<1 || col>3)
+	{
+		printf("\nWRONG POSITION!! Press any key.....");
+		wrong_X=1;
+		getch();
+		Board();
+	}
+	else
+	{
+		pos_for_X[row][col]=1;
+		pos_marked[row][col]=1;
+		Board();
+	}
+}
+
+void PlayerO()
+{
+	int row,col;
+	if(win==1)
+		return;
+	printf("\nEnter the row no. : ");
+	scanf("%d",&row);
+	printf("Enter the column no. : ");
+	scanf("%d",&col);
+	if(pos_marked[row][col]==1 || row<1 || row>3 || col<1 || col>3)
+	{
+		printf("\nWRONG POSITION!! Press any key....");
+		wrong_O=1;
+		getch();
+		Board();
+	}
+	else
+	{
+		pos_for_O[row][col]=1;
+		pos_marked[row][col]=1;
+		Board();
+	}
+}
+void Player_win()
+{
+	int i;
+	for(i=1;i<=3;i++)
+	{
+		if(pos_for_X[i][1]==1 && pos_for_X[i][2]==1 && pos_for_X[i][3]==1)
+		{
+			win=1;
+			printf("\n\nRESULT: %s wins!!",name_X);
+			printf("\nPress any key............");
+			return;
+		}
+	}
+	for(i=1;i<=3;i++)
+	{
+		if(pos_for_X[1][i]==1 && pos_for_X[2][i]==1 && pos_for_X[3][i]==1)
+		{
+			win=1;
+			printf("\n\nRESULT: %s wins!!",name_X);
+			printf("\nPress any key............");
+			return;
+		}
+	}
+	if(pos_for_X[1][1]==1 && pos_for_X[2][2]==1 && pos_for_X[3][3]==1)
+	{
+		win=1;
+		printf("\n\nRESULTL: %s wins!!",name_X);
+		printf("\nPress any key......");
+		return;
+	}
+	else if(pos_for_X[1][3]==1 && pos_for_X[2][2]==1 &&
+pos_for_X[3][1]==1)
+	{
+		win=1;
+		printf("\n\nRESULT: %s wins!!",name_X);
+		printf("\nPress any key.....");
+		return;
+	}
+
+	for(i=1;i<=3;i++)
+	{
+		if(pos_for_O[i][1]==1 && pos_for_O[i][2]==1 && pos_for_O[i][3]==1)
+		{
+			win=1;
+			printf("\n\nRESULT: %s wins!!",name_O);
+			printf("\nPress any key.....");
+			return;
+		}
+	}
+	for(i=1;i<=3;i++)
+	{
+		if(pos_for_O[1][i]==1 && pos_for_O[2][i]==1 && pos_for_O[3][i]==1)
+		{
+			win=1;
+			printf("\n\nRESULT: %s wins!!",name_O);
+			printf("\nPress any key.....");
+			return;
+		}
+	}
+	if(pos_for_O[1][1]==1 && pos_for_O[2][2]==1 && pos_for_O[3][3]==1)
+	{
+		win=1;
+		printf("\n\nRESULT: %s wins!!",name_O);
+		printf("\nPress any key.....");
+		return;
+	}
+	else if(pos_for_O[1][3]==1 && pos_for_O[2][2]==1 &&
+pos_for_O[3][1]==1)
+	{
+		win=1;
+		printf("\n\nRESULT: %s wins!!",name_O);
+		printf("\nPress any key.....");
+		return;
+	}
+}
+void check()
+{
+	int i,j;
+	for(i=1;i<=3;i++)
+	{
+		for(j=1;j<=3;j++)
+		{
+			if(pos_marked[i][j]==1)
+				chk++;
+			else
+				continue;
+		}
+	}
+}
+
+void start(){
+	int gdrive=DETECT,gmode;
+	initgraph(&gdrive,&gmode,"c:\\turboc3\\bgi");
+	
+	delay(2000);
+	T(50,50); delay(100);
+	I(); delay(100);
+	C(160,50);delay(100);
+	T(300,50); delay(100);
+	A();delay(100);
+	C(455,50);delay(100);
+	T(160,200);delay(100);
+	O();delay(100);
+	C(250,200);delay(100);
+	E();delay(200);
+	
+	for(int q=0;q<5;q++){
+		SCR(80,235);
+		SCR(470,235);
+		CIR(235);
+	}
+	closegraph();
+}
+
+void CIR(int CI2){
+	for(int i=0;i<40;i++){
+		setcolor(i);
+		circle(80+i,CI2-i,2);
+		circle(470+i,CI2-i,2);
+		circle(80-i,CI2+i,2);
+		circle(470-i,CI2+i,2);
+		circle(80-i,CI2-i,2);
+		circle(470-i,CI2-i,2);
+		circle(80+i,CI2+i,2);
+		circle(470+i,CI2+i,2);
+		circle(80,CI2-i,2);
+		circle(470,CI2-i,2);
+		circle(80,CI2+i,2);
+		circle(470,CI2+i,2);
+		circle(80-i,CI2,2);
+		circle(470-i,CI2,2);
+		circle(80+i,CI2,2);
+		circle(470+i,CI2,2);
+		delay(20);
+	}
+}
+
+void SCR(int S1,int S2){
+	setcolor(0);
+	for(int i=0;i<88;i++){
+		line((S1-45),(S2-45)+i,(S1+45),(S2-45)+i);
+	}
+}
+
+void I(){
+	for(int i=0;i<20;i++){
+		setcolor(2);
+		circle(130+i,50,3);
+		delay(10); 
+	}
+	for(i=0;i<70;i++){
+		circle(140,50+i,3);
+		delay(10);
+	}
+	for(i=0;i<20;i++){
+		setcolor(2);
+		circle(130+i,120,3);
+		delay(10); 
+	} 
+}
+
+void C(int c1,int c2){
+	for(int i=0;i<10;i++){
+		setcolor(2);
+		circle(c1+50,c2+10-i,3);
+		delay(10);
+	}
+	for(i=0;i<50;i++){
+		circle(c1+50-i,c2,3);
+		delay(10);
+	}
+	for(i=0;i<70;i++){
+		circle(c1,c2+i,3);
+		delay(10);
+	}
+	for(i=0;i<45;i++){
+		circle(c1+i,c2+70,3);
+		delay(10);
+	}
+}
+
+void O(){
+	for(int i=0;i<70;i++){
+		circle(300,270-i,3);
+		delay(10);
+	}
+}
+
+void T(int t1,int t2){
+	for(int i=0;i<70;i++){
+		setcolor(2);
+		circle(t1+i,t2,3);
+		delay(10);
+	}
+	for(i=0;i<70;i++){
+		setcolor(2);
+		circle(t1+35,t2+i,3);
+		delay(10);
+	}
+}
+
+void A(){
+	for(int i=0;i<35;i++){
+		circle(410-i,50+(i*2),3);
+		delay(10);
+	}
+	for(i=0;i<35;i++){
+		circle(410+i,50+(i*2),3);
+		delay(10);
+	}
+	for(i=0;i<20;i++){
+		circle(400+i,80,3);
+		delay(10);
+	}
+}
+
+void E(){
+	for(int i=0;i<50;i++){
+		circle(365-i,200,3);
+		delay(10);
+	}
+	for(i=0;i<70;i++){
+		circle(315,200+i,3);
+		delay(10);
+	}
+	for(i=0;i<50;i++){
+		circle(315+i,270,3);
+		delay(10);
+	}
+	for(i=0;i<25;i++){
+		circle(315+i,235,3);
+		delay(10);
+	}
+}
+
+
+//  A function to show the current board status
+void showBoard(char board[][SIDE])
+{
+
+	printf("\t\t\t %c | %c | %c \n", board[0][0], board[0][1], board[0][2]);
+	printf("\t\t\t-----------\n");
+	printf("\t\t\t %c | %c | %c \n", board[1][0], board[1][1], board[1][2]);
+	printf("\t\t\t-----------\n");
+	printf("\t\t\t %c | %c | %c \n\n", board[2][0], board[2][1], board[2][2]);
+}
+
+// A function to show the instructions
+void showInstructions()
+{
+	printf("\nChoose a cell numbered from 1 to 9 as below and play\n\n");
+
+	printf("\t\t\t 1 | 2 | 3 \n");
+	printf("\t\t\t-----------\n");
+	printf("\t\t\t 4 | 5 | 6 \n");
+	printf("\t\t\t-----------\n");
+	printf("\t\t\t 7 | 8 | 9 \n\n");
+}
+
+
+// A function to initialise the game
+void initialise(char board[][SIDE])
+{
+	// Initially the board is empty
+	for (int i=0; i<SIDE; i++)
+	{
+		for (int j=0; j<SIDE; j++)
+			board[i][j] = ' ';
+	}
+}
+
+// A function to declare the winner of the game
+void declareWinner(int whoseTurn)
+{
+	if (whoseTurn == COMPUTER)
+		printf("COMPUTER has won\n");
+	else
+		printf("HUMAN has won\n");
+}
+
+// A function that returns true if any of the row
+// is crossed with the same player's move
+int rowCrossed(char board[][SIDE])
+{
+	for (int i=0; i<SIDE; i++)
+	{
+		if (board[i][0] == board[i][1] &&
+			board[i][1] == board[i][2] &&
+			board[i][0] != ' ')
+			return 1;
+	}
+	return 0;
+}
+
+// A function that returns true if any of the column
+// is crossed with the same player's move
+int columnCrossed(char board[][SIDE])
+{
+	for (int i=0; i<SIDE; i++)
+	{
+		if (board[0][i] == board[1][i] &&
+			board[1][i] == board[2][i] &&
+			board[0][i] != ' ')
+			return 1;
+	}
+	return 0;
+}
+
+// A function that returns true if any of the diagonal
+// is crossed with the same player's move
+int diagonalCrossed(char board[][SIDE])
+{
+	if (board[0][0] == board[1][1] &&
+		board[1][1] == board[2][2] &&
+		board[0][0] != ' ')
+		return 1;
+
+	if (board[0][2] == board[1][1] &&
+		board[1][1] == board[2][0] &&
+		board[0][2] != ' ')
+		return 1;
+
+	return 0;
+}
+
+// A function that returns true if the game is over
+// else it returns a false
+int gameOver(char board[][SIDE])
+{
+	return(rowCrossed(board) || columnCrossed(board) || diagonalCrossed(board) );
+}
+
+// Function to calculate best score
+int minimax(char board[][SIDE], int depth, int isAI)
+{
+	int score = 0;
+	int bestScore = 0;
+	if (gameOver(board) == 1)
+	{
+		if (isAI == 1)
+			return -1;
+		if (isAI == 0)
+			return +1;
+	}
+	else
+	{
+		if(depth < 9)
+		{
+			if(isAI == 1)
+			{
+				bestScore = -999;
+				for(int i=0; i<SIDE; i++)
+				{
+					for(int j=0; j<SIDE; j++)
+					{
+						if (board[i][j] == ' ')
+						{
+							board[i][j] = COMPUTERMOVE;
+							score = minimax(board, depth + 1, 0);
+							board[i][j] = ' ';
+							if(score > bestScore)
+							{
+								bestScore = score;
+							}
+						}
+					}
+				}
+				return bestScore;
+			}
+			else
+			{
+				bestScore = 999;
+				for (int i = 0; i < SIDE; i++)
+				{
+					for (int j = 0; j < SIDE; j++)
+					{
+						if (board[i][j] == ' ')
+						{
+							board[i][j] = HUMANMOVE;
+							score = minimax(board, depth + 1, 1);
+							board[i][j] = ' ';
+							if (score < bestScore)
+							{
+								bestScore = score;
+							}
+						}
+					}
+				}
+				return bestScore;
+			}
+		}
+		else
+		{
+			return 0;
+		}
+	}
+}
+
+// Function to calculate best move
+int bestMove(char board[][SIDE], int moveIndex)
+{
+	int x = -1, y = -1;
+	int score = 0, bestScore = -999;
+	for (int i = 0; i < SIDE; i++)
+	{
+		for (int j = 0; j < SIDE; j++)
+		{
+			if (board[i][j] == ' ')
+			{
+				board[i][j] = COMPUTERMOVE;
+				score = minimax(board, moveIndex+1, 0);
+				board[i][j] = ' ';
+				if(score > bestScore)
+				{
+					bestScore = score;
+					x = i;
+					y = j;
+				}
+			}
+		}
+	}
+	return x*3+y;
+}
+
+// A function to play Tic-Tac-Toe 
+void playTicTacToe(int whoseTurn) 
+{ 
+	char board[SIDE][SIDE]; 
+	int moveIndex = 0, x = 0, y = 0;
+
+	initialise(board);
+	showInstructions(); 
+	
+	// Keep playing till the game is over or it is a draw 
+	while (gameOver(board) == 0 && moveIndex != SIDE*SIDE) 
+	{ 
+		int n;
+		if (whoseTurn == COMPUTER) 
+		{
+			n = bestMove(board, moveIndex);
+			x = n / SIDE;
+			y = n % SIDE;
+			board[x][y] = COMPUTERMOVE; 
+			printf("COMPUTER has put a %c in cell %d\n\n", COMPUTERMOVE, n+1);
+			showBoard(board);
+			moveIndex ++; 
+			whoseTurn = HUMAN;
+		} 
+		
+		else if (whoseTurn == HUMAN) 
+		{
+			printf("You can insert in the following positions : ");
+			for(int i=0; i<SIDE; i++)
+				for (int j = 0; j < SIDE; j++)
+					if (board[i][j] == ' ')
+						printf("%d ", (i * 3 + j) + 1);
+			printf("\n\nEnter the position = ");
+			scanf("%d",&n);
+			n--;
+			x = n / SIDE;
+			y = n % SIDE; 
+			if(board[x][y] == ' ' && n<9 && n>=0)
+			{
+				board[x][y] = HUMANMOVE; 
+				printf ("\nHUMAN has put a %c in cell %d\n\n", HUMANMOVE, n+1); 
+				showBoard(board); 
+				moveIndex ++; 
+				whoseTurn = COMPUTER;
+			}
+			else if(board[x][y] != ' ' && n<9 && n>=0)
+			{
+				printf("\nPosition is occupied, select any one place from the available places\n\n");
+			}
+			else if(n<0 || n>8)
+			{
+				printf("Invalid position\n");
+			}
+		} 
+	} 
+
+	// If the game has drawn 
+	if (gameOver(board) == 0 && moveIndex == SIDE * SIDE) 
+		printf("It's a draw\n"); 
+	else
+	{ 
+		// Toggling the user to declare the actual winner 
+		if (whoseTurn == COMPUTER) 
+			whoseTurn = HUMAN; 
+		else if (whoseTurn == HUMAN) 
+			whoseTurn = COMPUTER; 
+		
+		declareWinner(whoseTurn); 
+	} 
+}