diff --git a/EfiTicTacToe/ UefiMain.c b/EfiTicTacToe/ UefiMain.c
new file mode 100644
index 0000000..f4ecdc7
--- /dev/null
+++ b/EfiTicTacToe/ UefiMain.c	
@@ -0,0 +1,181 @@
+#include <Uefi.h>
+#include <Library/UefiLib.h>
+#include <Library/UefiApplicationEntryPoint.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiRuntimeServicesTableLib.h>
+#include <Library/UefiRuntimeLib.h>
+#include <Protocol/GraphicsOutput.h>
+#include <Protocol/AbsolutePointer.h>
+
+EFI_GUID app_guid = EFI_ABSOLUTE_POINTER_PROTOCOL_GUID; 
+EFI_ABSOLUTE_POINTER_PROTOCOL *App = NULL;
+
+EFI_GUID gop_guid = EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID; 
+EFI_GRAPHICS_OUTPUT_PROTOCOL *Gop = NULL;
+UINT64 Gop_FrameBufferBase = 0;
+UINT32 Gop_PixelsPerScanLine = 0;
+
+static inline void drawPixel(UINT32 x, UINT32 y, UINT32 pixel)
+{
+  *((UINT32*)(Gop_FrameBufferBase + 4 * Gop_PixelsPerScanLine * y + 4 * x)) = pixel;
+}
+
+static inline void drawRectangle(UINT32 x, UINT32 y, UINT32 w, UINT32 h, UINT32 pixel)
+{
+  for(int ix = 0; ix < w; ++ix)
+  {
+    for(int iy = 0; iy < h; ++iy)
+    {
+      drawPixel(x+ix, y+iy, pixel);
+    }
+  }
+}
+
+EFI_STATUS EFIAPI UefiEntry(IN EFI_HANDLE imgHandle, IN EFI_SYSTEM_TABLE* sysTable)
+{
+
+  EFI_STATUS Status;
+  
+  Status = gBS->LocateProtocol(&gop_guid, NULL, (VOID **)&Gop);
+  if (EFI_ERROR(Status)) {
+    Print(u"\r\nERROR: %x; Cannot locate GOP protocol. Return.\r\n", Status);
+    return Status;
+  }
+  
+  Gop_FrameBufferBase   = Gop->Mode->FrameBufferBase;
+  Gop_PixelsPerScanLine = Gop->Mode->Info->PixelsPerScanLine;
+  UINT32 W = Gop->Mode->Info->HorizontalResolution;
+  UINT32 H = Gop->Mode->Info->VerticalResolution;
+
+  Status = gBS->LocateProtocol(&app_guid, NULL, (VOID **)&App);
+  if (EFI_ERROR(Status)) {
+    Print(u"\r\nERROR: %x; Cannot locate APP protocol. Return.\r\n", Status);
+    return Status;
+  }
+  
+  UINT64 aMinX = App->Mode->AbsoluteMinX;
+  UINT64 aMaxX = App->Mode->AbsoluteMaxX;
+  UINT64 aMinY = App->Mode->AbsoluteMinY;
+  UINT64 aMaxY = App->Mode->AbsoluteMaxY;
+  
+  UINT32 sq_sid  = W * 80 / 1000;
+  UINT32 sq_gap  = W * 20 / 1000;
+  
+  
+  UINT32 col[3] = { W/2 - 3*sq_sid/2 -   sq_gap ,
+                    W/2 -   sq_sid/2            ,
+                    W/2 +   sq_sid/2 +   sq_gap };
+
+  UINT32 row[3] = { H/2 - 3*sq_sid/2 -   sq_gap ,
+                    H/2 -   sq_sid/2            ,
+                    H/2 +   sq_sid/2 +   sq_gap };
+  
+  UINT32 aRow0 = aMinY + 450*(aMaxY-aMinY)/1000;
+  UINT32 aRow1 = aMinY + 550*(aMaxY-aMinY)/1000;
+  UINT32 aCol0 = aMinX + 450*(aMaxX-aMinX)/1000;
+  UINT32 aCol1 = aMinX + 550*(aMaxX-aMinX)/1000;
+  
+  const UINT32 accentColor = 0xFFFFFF, idleColor = 0x000000, AColor = 0xCC0000, BColor = 0xFF5500;
+  
+  drawRectangle(0,0,W,H,idleColor);
+  
+  drawRectangle(col[1]-4*sq_gap/7,row[0],sq_gap/8,3*sq_sid+2*sq_gap,accentColor);
+  drawRectangle(col[2]-4*sq_gap/7,row[0],sq_gap/8,3*sq_sid+2*sq_gap,accentColor);
+  
+  drawRectangle(col[0],row[1]-4*sq_gap/7,3*sq_sid+2*sq_gap,sq_gap/8,accentColor);
+  drawRectangle(col[0],row[2]-4*sq_gap/7,3*sq_sid+2*sq_gap,sq_gap/8,accentColor);
+
+  UINTN EventIndex = 0;
+  
+  UINT32 turn = AColor;
+  UINT32 board[3][3] = {{0,0,0}, {0,0,0}, {0,0,0}};
+  
+  void draw(int c, int r) {
+    if (board[0][0] != 0 && board[0][0] == board[1][0] && board[1][0] == board[2][0])  return;
+    if (board[0][1] != 0 && board[0][1] == board[1][1] && board[1][1] == board[2][1])  return;
+    if (board[0][2] != 0 && board[0][2] == board[1][2] && board[1][2] == board[2][2])  return;
+    
+    if (board[0][0] != 0 && board[0][0] == board[0][1] && board[0][1] == board[0][2])  return;
+    if (board[1][0] != 0 && board[1][0] == board[1][1] && board[1][1] == board[1][2])  return;
+    if (board[2][0] != 0 && board[2][0] == board[2][1] && board[2][1] == board[2][2])  return;
+    
+    if (board[0][0] != 0 && board[0][0] == board[1][1] && board[1][1] == board[2][2])  return;
+    if (board[0][2] != 0 && board[0][2] == board[1][1] && board[1][1] == board[2][0])  return;
+    
+    if (board[c][r] == 0)
+    {
+      board[c][r] = turn;
+      drawRectangle(col[c],row[r],sq_sid,sq_sid,turn);
+      
+      if (turn == AColor)
+      {
+        turn = BColor;
+      }
+      else
+      {
+        turn = AColor;
+      }
+    }
+  }
+  
+  while(1) {
+    Status = gBS->WaitForEvent(1, /*Event*/ &(App->WaitForInput), &EventIndex);
+    EFI_ABSOLUTE_POINTER_STATE State;
+    App->GetState(App, &State);
+    
+    if (State.CurrentX < aCol0)
+    {
+      if (State.CurrentY < aRow0)
+      {
+        draw(0,0);
+      }
+      else if (State.CurrentY < aRow1)
+      {
+        if (board[0][1] == 0)
+        {
+          draw(0,1);
+        }
+      }
+      else
+      {
+        if (board[0][2] == 0)
+        {
+          draw(0,2);
+        }
+      }
+    }
+    else if (State.CurrentX < aCol1)
+    {
+      if (State.CurrentY < aRow0)
+      {
+        draw(1,0);
+      }
+      else if (State.CurrentY < aRow1)
+      {
+        draw(1,1);
+      }
+      else
+      {
+        draw(1,2);
+      }
+    }
+    else
+    {
+      if (State.CurrentY < aRow0)
+      {
+        draw(2,0);
+      }
+      else if (State.CurrentY < aRow1)
+      {
+        draw(2,1);
+      }
+      else
+      {
+        draw(2,2);
+      }
+    }
+    
+  }
+  
+  return EFI_SUCCESS;   
+}
\ No newline at end of file