OOXX

　
無 AI 版本，在框框內按滑鼠左鍵落子。

#include <windows.h>
#include <stdio.h>
extern "C" WINBASEAPI HWND WINAPI GetConsoleWindow();

int main (/* 090701 */)
{
    short pos, x, y, ch = 0, rnd = 0, c[11] = {0}; 
    short win[] = {7,56,73,84,146,273,292,448,0}, *w;
    char  map[] = "□ □ □\n□ □ □\n□ □ □";
    COORD coor  = {0,0};        
    POINT p; puts (map); 
   
    while (rnd < 9) {
        GetCursorPos (&p);
        ScreenToClient (GetConsoleWindow(), &p);
        pos = (x=p.x-2)/21 + ((y=p.y-2)/15)*3;
        if (x<0 || x>60 || y<0 || y>42 || c[pos] ||
            GetAsyncKeyState (1)>=0) continue;
        SetConsoleCursorPosition 
            (GetStdHandle (STD_OUTPUT_HANDLE), coor);
        map[pos*3]   = "○╳"[ch*2  ];
        map[pos*3+1] = "○╳"[ch*2+1];
        puts (map);
        c[ch+9] |= (c[pos] = 1) << pos;
        for (w=win; *w; *w==(c[ch+9]&*w)? rnd=99, w=win+8: w++);                
        if (rnd != 99) ch = !ch, rnd++;
    }
    system ("pause"+ !printf (9==rnd? "\n平手":"\n%c 獲勝", "OX"[ch]));
}