Tic Tac Toe Tactics
Assume that you are playing a tic-tac-toe game with an opponent. You play as X while your opponent plays as O .
The game is played as follows:
Find all the possible grid tiles where you can put an X -mark that will help you guarantee a win under best play.
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12 solutions
Your opponent can just go D or C if he gets the middle one and wins instantly! He doesn't have to bother about blocking you.
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You're right. You will lose if you pick A
Thats correct.
your turn is next so you can choose the middle duh
B is the only correct answer, as your opponent will be chasing you at D , then you would win on C. If he blocks you at C first, you win with a move on D. E is incorrect because he can go to B first, which would leave you to block him at A. It’s stale mate after that. If anyone can can tell me how going to E first and having your opponent (who is playing optimally), not go to B for whatever reason, I am willing to listen and admit I’m wrong.
Ok. I was wrong. 5 AM in the morning and I was playing as O, not X. Lol.
ONLY B allows a win for X.
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B allows a win at A and E. E allows you to win at B and D
In order to win this game of tic tac toe, you need to make a fork. However, the only possible grid tiles to put a fork on is b and e , since placing a mark on a , c , or d would not make a fork at all. So the answer is Either b or e
Hey b is enough to win
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the correct answer is just e! you place the cross on e and you win both ways!
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If u put on e you'll win because u can go both ways
Yes because your opponent would not be able to block both diagonal moves
yeah I know right
You could also Mark a to guarantee a win. All be it you would need tomake an extra move
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Nope.
You - A Opponent - B (to block you) You - D or C Opponent - C or D (depending on your move)
You lose if you go on a.
You could mark A also, since is just mark B, and then you have a sure win, because even if the opponent block you marking A or E, you still have the other one to mark, making B the obvious choice
Placing a mark on e still wouldn't guarantee a win though, as the other player could place a mark on b to stop you.
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If the opponent places a mark on b, you can play a mark to d for a win on the bottom row.
If he puts on 'b' then u just have to put next on 'd' and you win! :) ;)
suppose i place the cross on e and the player puts the o on b; then i can place the cross on d and still win!
If you put in e "o" (who can only choose one place right now) can put in b and you still have d as a win or "o" can put in d and you'll have b as a win or "o" can be an idiot and put in another box
Thought I was o.
Dammit I read e as c
making a mark on e will not guarantee you a win
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If you mark an X on e, it forces your opponent to mark O on either b or d, and then you mark an X on either d or b, depending, winning. B and E both force the win.
Its only -B-. Because if you do -E- then O will play in the middle leaving you stuck.
You can't guarantee a win on e, because if the opponent puts on b, you'll be obligated to put on a, than he will put on c (if not stupid) than it's done, game over. The only way to guarantee a win is on b.
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nope. You'll not be obligated to put on a. If he/she puts on b, you'll put on d AND WIN
If he puts on 'b' then u just have to put next on 'd' and you win! :) ;)
the answer could be anything except c, d.. so try to think logically and don't put in explanations just from your point of view. there are multiple answers for this..
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The answer is B or E; A is a loss, and C and D are both draws. It's not a question of point of view: There is only one best answer.
a, b, and e will all guarantee a win, though a would just need an extra move. The best (in my opinion as they are quicker and more efficient choices) would be either b or e.
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A loses to your opponent's play on B. The only winning moves are B and E.
Hey i told the answer was e. it said i was incorrect. u see i am a tic tac toe master and i always win matches while playing with my friends The question you asked was"On which grid tile should you put an -mark to make sure you would win?" not"On which ALL grid tile should you put an -mark to make sure you would win?
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Okay, so let me get this straight: you're saying that the answer must be e ...
The answer to this problem is Either b or e , because you need to make a fork (A fork is a double-threat) in order to win. Yes, if you put a mark on grid tile e , you would create a fork, where the opponent would block one of the threats but you can put a mark on your other threat so you could make a 3-in-a-row... which results in a win, obviously. However, b is another possible choice to make a fork, and would also result in a win like e .
If you're talking about the grammar of my asked question... let me clarify. If a question asks for something singular (e.g. On which grid tile ), but you have two possible answers, go use the word "Either". If it asks for something plural (e.g. What are the possible grid tiles ), then the word "Either" is not needed.
Besides, yes, there are these choices " b ", " e ", and "Either b or e ". Yes, b is correct. Yes, e is correct. But we are looking for the best answer in math problems. The best answer is the correct one, and that is, "Either b or e ".
I hope I clarified your statement.
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then remove the options e and b cause. its better to have e or b only
b,e are correct... while a is correct too.... You play a... then the opponent will play on b..... thus you now play e and game is yours...... Its written in the problem that with the best play... hence.. answer should be ... a,b and e.... all three :)
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@Abhinav Sharma – If you play on A, and then your opponent plays on B, then you will lose the game. If circle plays on B it creates a fork, you can only block one threat by playing on C or D, whichever you choose, your opponent will play the other and win the game. So no, A is not correct, it will indeed cause you to lose.
@Abhinav Sharma – If you play on a, and your opponent plays on b, your opponent has forked you, and will win with either c or d.
Best play is either b or e.
I was thinking of the same thing
The answer this problem was looking for was either B or E. E forces the opponent to either b or d and leaves you to win with the alternate. B forces the opponent to either a or e and leaves you to win with the alternate. a is also a safe place leaving you to win in two by placing your next X on E, but, of course, it isn't an efficient win and doesn't answer the problem as stated.
Yes, but a is not safe because opponent can place on b and then you surely lose.
If you place an x on a you ensure you will lose because on your opponents next move he/she will place on b and create their own fork ensuring their victory.
You do know that's it wouldn't even be our turn it would be the other guys turn so it's impossible to know what would still be there.
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It's saying 'under best play', which means that your opponent would do as much as possible to keep you from winning.
'a' IS A CORRECT ANSWER
Problem as stated: "Find all the possible grid tiles where you can put an X-mark will help you guarantee a win under best play."
Placing the first X in tile 'a' will guarantee a win on your 3rd turn.
'a' IS A CORRECT ANSWER
By placing in 'a,' this will force O to place in the middle.
You then place your next X in bottom right, this offers you 2 ways to win and thus guarantees the win.
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'A' in fact guarantees that you lose. The opponent is then forced to block by placing an O in the centre but this creates a fork for themself meaning they win on the next turn.
So, I feel like the wording should be changed because "best play" implies that your opponent is optimized to block you. If this is the case, then after you play on E, they would surly play on B, Forcing you to play A, which would result in a draw. "Best Play" implies not losing. So I feel like E should not be an answer or the wording should be changed because B is the only move where victory is ensured. It is truly the "Best Play"
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You're not forced to play A, you can just play D and win.
Always a trick question that is a play on words. It says Find ALL possible grid TILES etc... which means the ONLY possible answers are Either b or e or the one labeled Either a or b, simple intuition shows the answer is Either b or e. Those who answered b only or e only did not read the question properly...
Jesus Christ, people here REALLY suck at tic-tac-toe. The report section is just sad.
If you put a marker on B either way the opponent moves(e or a) you can still win, same with e. YOu move on e, opponent plays b or d, you still win
I disagree with answer. You place an 0 in b, the opponents block is either c or d. Then you win in next play. Makes no sense to ask for all possible answers when you can win just by placing your 0 in b And no further play is required.
Still logic is flawed by my these people. If I put an o in block b opponent will have to block my win by placing an x in c or d. They aren't going to play an x in a or e, the only choice is to block one of my 2 winning ways by putting an X in C or D
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Except the question states that you play as X while your opponent plays as O. You are playing the wrong side.
Yeah this consists of the Diagonal Block and Threat or the 2 corner threat technique which is bound to give you a win.
If you put it on B you have two ways to win. You can put it on either A or E, which can secure the win. If you put it on E it is the same, you can either put it on B or D, and you will either way. The way this works is that when you put it down like that, your opponent can only block one of the spaces, leaving you with one more option to win.
If X chose b, then if O blocks X at e, X wins by playing a, and vice versa. If X chose e, then if O blocks X at b, will win by playing d and vice versa
There's way too many people here saying that 'A' is correct. 'A' is in fact the worst possible position to place the X. Sure, they're forced to block by placing an O in the centre box. But that creates a fork for them, meaning they WIN.
a, b and e are all corect. if u use ur next x for a u force your opponent to place his mark in b, if you follow up with e you are sure to win. It takes more time tho
A is not possible as that allows the opponent to create a fork on B while blocking your own threat of a fork. From here, the opponent will win by placing it on either C or D and there's no way to stop it since you can only block one.
B is possible as that satisfies the creation of a fork, allowing you to win on A or E and there's no way to block it. This will also block the opponent's fork.
C is not possible because of scenario A.
D turns into a tie, thus not guaranteed a win.
E is possible, because it also creates a fork. By placing it on E, the opponent is forced to select either B or D to block it. Placing it on B would allow you to win by placing it on D and vice versa if he places it on D.
It is ab or be
B and E both guarantee the win but so does A in two turns. A forces an "O" in the middle leaving two possible rows of three able to be formed by placing an "X" in the bottom right corner. Your opponent could only block one and so you would win.