[Mr Liam]

Here's a basic Tic-Tac-Toe.

Code

@echo off
title TTT
setlocal enabledelayedexpansion

: start
set 1=1
set 2=2
set 3=3
set 4=4
set 5=5
set 6=6
set 7=7
set 8=8
set 9=9
set t=X

: board
cls
echo !7! !8! !9!
echo !4! !5! !6!
echo !1! !2! !3!
echo.

if !1!==X if !4!==X if !7!==X goto xwin
if !1!==O if !4!==O if !7!==O goto owin
if !2!==X if !5!==X if !8!==X goto xwin
if !2!==O if !5!==O if !8!==O goto owin
if !3!==X if !6!==X if !9!==X goto xwin
if !3!==O if !6!==O if !9!==O goto owin
if !1!==X if !2!==X if !3!==X goto xwin
if !1!==O if !2!==O if !3!==O goto owin
if !4!==X if !5!==X if !6!==X goto xwin
if !4!==O if !5!==O if !6!==O goto owin
if !7!==X if !8!==X if !9!==X goto xwin
if !7!==O if !8!==O if !9!==O goto owin
if !1!==X if !5!==X if !9!==X goto xwin
if !1!==O if !5!==O if !9!==O goto owin
if !3!==X if !5!==X if !7!==X goto xwin
if !3!==O if !5!==O if !7!==O goto owin

if not !1!==1 if not !2!==2 if not !3!==3 if not !4!==4 if not !5!==5 if not !6!==6 if not !7!==7 if not !8!==8 if not !9!==9 goto nowin

echo %t%, your go! Choose a number..
CHOICE /C 123456789 >nul
set %errorlevel%=%t%
if %t%==X (set t=O) else (set t=X)
goto board

: nowin
echo No one has won!
pause >nul
goto start

: xwin
echo X wins!
pause >nul
goto start

: owin
echo O wins!
pause >nul
goto start

The next part is to make the computer play the computer.

Edit: Player V CPU: https://hackforums.net/showthread.php?tid=2886755

[Isometrical]

This is really cool, thanks for the share OP. 👍
EDIT: I lost :(

[MooCowManiak]

This is quite good, im looking forward for playing the computer :)

[Mr Liam]

Very nice program but what does this line?

Code

set %errorlevel%=%t%

%errorlevel% being the number they pressed.

[SoulByte]

!variable! means that these can be changed becayse are from errrolevel>?

Help Docs[/url]]
Delayed environment variable expansion is useful for getting around
the limitations of the current expansion which happens when a line
of text is read, not when it is executed. The following example
demonstrates the problem with immediate variable expansion:

set VAR=before
if "%VAR%" == "before" (
set VAR=after
if "%VAR%" == "after" @echo If you see this, it worked
)

would never display the message, since the %VAR% in BOTH IF statements
is substituted when the first IF statement is read, since it logically
includes the body of the IF, which is a compound statement. So the
IF inside the compound statement is really comparing "before" with
"after" which will never be equal.

Basically if you change or declare a variable inside a parenthesis, you won't be able to see the change unless you do !variable! instead of %variable%, or try to access it from outside the parentheses.

[Mr Liam]

Guys, check the thread again for the Player V CPU stuff.