#include <iostream>using namespace::std;int pins=15;int pos[5][5]={{1,2,3,4,5},{6,7,8,9,0},{11,12,13,0,0},{16,17,0,0,0},{21,0,0,0,0}};int drawgame();int start();int validmoves();int checkmove(int,int);int move();int removepin(int);int addpin(int);int final(int);int start(){    drawgame();    cout<<"\n\nEnter start position : ";    int start;    cin>>start;    start=start-1;    int xstart, ystart;    ystart=(start/5);    xstart=(start%5);    pos[ystart][xstart]=-1;    pins--;}int main(){   start ();      int gamerun=0;   int numberofvalidmoves;      while (gamerun==0)   {   numberofvalidmoves=validmoves();      if (numberofvalidmoves==0)   {    final(pins);   }      move();   } }int validmoves()//how many valid moves the player can make{   int validmoves=0;   cout<<"\n";   int x,y,c;     for(int n=1;n<25; n++)    {        c=n-1;        y= c/5;        x=(c%5);                        //up    if ((n==pos[y][x])&&(pos[y-2][x]==-1)&&(y-2>=0)&&(pos[y-1][x]>0))    {          validmoves++;    }      //down       if ((n==pos[y][x])&&(pos[y+2][x]==-1)&&(y+2<5)&&(pos[y+1][x]>0))    {              validmoves++;    }      //left      if ((n==pos[y][x])&&(pos[y][x-2]==-1)&&(x-2>=0)&&(pos[y][x-1]>0))    {              validmoves++;    }          //right    if ((n==pos[y][x])&&(pos[y][x+2]==-1)&&(x+2<5)&&(pos[y][x+1]>0))    {               validmoves++;    }        //upright    if ((n==pos[y][x])&&(pos[y-2][x+2]==-1)&&(x+2<5)&&(y-2>=0)&&(pos[y-1][x+1]>0))    {            validmoves++;    }        //downleft        if ((n==pos[y][x])&&(pos[y+2][x-2]==-1)&&(y+2<5)&&(x-2>=0)&&(pos[y+1][x-1]>0))    {            validmoves++;    }        }         return validmoves;}        int drawgame()//draws the gamespace{        cout<<"\n";    string spaces="  ";                for (int n=0;n<5; n++)    {        cout<<spaces;        for (int i=0;i<5;i++)        {        if (!pos[n][i]==0)//if number is 0 then no pinhole is there        {          //Pin present, number less than 10          if ((pos[n][i]<10)&&((n*5)+i+1<10)&&(pos[n][i]>-1))          {          cout<<"0"<<pos[n][i]<<" "<<char(248)<<" ";          }                    //Pin present, number greater equal than 10          if ((pos[n][i]>=10)&&((n*5)+i+1>=10)&&(pos[n][i]>-1))          {          cout<<pos[n][i]<<" "<<char(248)<<" ";          }                    //Pin not present, number less than 10                    if ((pos[n][i]<10)&&((n*5)+i+1<10)&&(pos[n][i]==-1))          {           cout<<"0"<<(n*5)+i+1<<"   ";          }                    //Pin not present, number greater equal than 10         if ((pos[n][i]<10)&&((n*5)+i+1>=10)&&(pos[n][i]==-1))          {          cout<<(n*5)+i+1<<"   ";          }        }        }                cout<<"\n\n";    }}int move(){    drawgame();    cout<<"\nNumber of pins left :"<<pins;    cout<<"\nTurn Number :"<<turn;        int p1,p2;                cout<<"\nEnter pin to move (0 to end game): ";    cin>>p1;        if (p1==0)//exits on 0    {    final(pins);    }           cout<<"Enter position to move to : ";    cin>>p2;    int check=checkmove(p1,p2);    if (check==0)    {    cout<<"\nInvalid Move!";    move();    }    else    {       //clear pins from here    removepin(check);    removepin(p1);    addpin(p2);     pins--;      }              }int removepin(int pin){    int pinno,pinx,piny;    pinno=pin-1;    piny=pinno/5;    pinx=pinno%5;    pos[piny][pinx]=-1;}int addpin(int pin){    int pinno,pinx,piny;    pinno=pin-1;    piny=pinno/5;    pinx=pinno%5;    pos[piny][pinx]=pin;}int checkmove(int p1, int p2){    int p1x,p1y,p2x,p2y;    int c,d;    int middlepin=0;    int movemade=0;         c=p1-1;     p1y= c/5;     p1x=(c%5);          d=p2-1;     p2x=d/5;     p2y=d%5;             //up    if ((p1==pos[p1y][p1x])&&(pos[p1y-2][p1x]==-1)&&(pos[p1y-2][p1x]==pos[p2x][p2y])&&(p1y-2>=0)&&(pos[p1y-1][p1x]>0)&&(movemade==0))    {      middlepin=(p1-p2)/2+p2;    movemade=1;    }      //down       if ((p1==pos[p1y][p1x])&&(pos[p1y+2][p1x]==-1)&&(pos[p1y+2][p1x]==pos[p2x][p2y])&&(p1y+2<5)&&(pos[p1y+1][p1x]>0)&&(movemade==0))    {          middlepin=(p2-p1)/2+p1;    movemade=1;    }      //left      if ((p1==pos[p1y][p1x])&&(pos[p1y][p1x-2]==-1)&&(pos[p1y][p1x-2]==pos[p2x][p2y])&&(p1x-2>=0)&&(pos[p1y][p1x-1]>0)&&(movemade==0))    {        middlepin=(p1-p2)/2+p2;    movemade=1;    }          //right    if ((p1==pos[p1y][p1x])&&(pos[p1y][p1x+2]==-1)&&(pos[p1y][p1x+2]==pos[p2x][p2y])&&(p1x+2<5)&&(pos[p1y][p1x+1]>0)&&(movemade==0))    {         middlepin=(p2-p1)/2+p1;     cout<<endl<<middlepin;    movemade=1;    }        //upright    if ((p1==pos[p1y][p1x])&&(pos[p1y-2][p1x+2]==-1)&&(pos[p1y-2][p1x+2]==pos[p2x][p2y])&&(p1x+2<5)&&(p1y-2>=0)&&(pos[p1y-1][p1x+1]>0)&&(movemade==0))    {      middlepin=(p1-p2)/2+p2;    movemade=1;    }        //downleft        if ((p1==pos[p1y][p1x])&&(pos[p1y+2][p1x-2]==-1)&&(pos[p1y+2][p1x-2]==pos[p2x][p2y])&&(p1y+2<5)&&(p1x-2>=0)&&(pos[p1y+1][p1x-1]>0)&&(movemade==0))    {        middlepin=(p2-p1)/2+p1;    movemade=1;    }         return middlepin;}int final(int pinsleft)// end of the game{    drawgame();    cout<<"\nYou finished the game with "<<pins<<" pins left.";    switch(pinsleft)    {        case 1: cout<<"\nYou cheated!"; break;    case 2: cout<<"\nYou could do better."; break;    case 3: cout<<"\nYou are not that bright."; break;    case 4: cout<<"\nYou are somewhat dumb."; break;    case 5: cout<<"\nI've met smarter cantelopes."; break;    case 6: cout<<"\nJackass."; break;    case 7: cout<<"\nYou suck!"; break;    case 8: cout<<"\nYou are so stupid I hate you."; break;    case 9: cout<<"\nWhy were you born?"; break;    case 10: cout<<"\nYou are crap at this game."; break;    case 11: cout<<"\nShoot yourself immediately."; break;    case 12: cout<<"\nIdiot"; break;    case 13: cout<<"\nI am not your friend anymore."; break;    case 14: cout<<"\nYour so bad I crapped my pants."; break;    case 15: cout<<"\nI have no response to your crapness."; break;    }    exit(0);}    

[ source]//code[ /source]