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checkmate with only a queen and king

checkmate with only a queen and king

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can some1 show me how to set a player checkmate with only a queen and a kind because it turns out in a draw all the time.

Thank you,
Northrend

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Are you in a game where this is the case right now? If not, I can explain it...

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Originally posted by Northrend
can some1 show me how to set a player checkmate with only a queen and a kind because it turns out in a draw all the time.

Thank you,
Northrend
I checked his games and there's no such ending right now, so I'll try to help.

you need to get the opponent's king to any corner or the side of the board using your king and queen. the lone king cannot get near the queen, so as long as you don't put your queen one square near the opponent's king, your queen cannot be captured. utilize this to gradually decrease the legal squares of the opponent king, slowly bring your king near to your queen and then decrease some more. eventually the opponent king will be stuck in a corner or to any side of the board and you'll be able to mate him.

watch out for stalemates (which AFAIK -if it's a KQ vs K endgame- only occurs when the opponent's king is right at one of the corner squares, and you queen gets to squares which a knight at that corner could reach; or your king is one square away from the opponent's, and the queen's shooting range is blocking the king.), and that should be it.

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Originally posted by zebano
Are you in a game where this is the case right now? If not, I can explain it...
Its OK, they do not have a game in progess with this scenario so explain away.

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an example:

8/8/8/4K3/8/8/8/kq6 b - - 0 0

1... Qf1 2. Ke4 Qf6 3. Ke3 Qh4 4. Ke2 Qg3 5. Kf1 Qh2 6. Ke1 Qg2 7.
Kd1 Kb2 8. Ke1 Kc3 9. Kd1 Qf1# 0-1

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And if you prefer visual aids, here's a decent link -

http://en.wikibooks.org/wiki/Chess/The_Endgame#King_and_Queen_vs._King

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Well I understand what you try to say, however when I cannot seem to get how it works.

Lets white say the king is on h2,
the blackqueen on f3
the blackking on f4

I cannot drive him into a cornar anymore because I need to cover my queen with my king, however if I move my king forward to give cover I already have stalemate or I would put myself into check.

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Originally posted by Northrend
Well I understand what you try to say, however when I cannot seem to get how it works.

Lets white say the king is on h2,
the blackqueen on f3
the blackking on f4

I cannot drive him into a cornar anymore because I need to cover my queen with my king, however if I move my king forward to give cover I already have stalemate or I would put myself into check.
Assuming it's Black to move, in that position, there's more than one way to do it. But the easiest way for me is 1...Qg4 2. Kh1 Kf3 3. Kh2 Qg2 mate

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Originally posted by Northrend
Well I understand what you try to say, however when I cannot seem to get how it works.

Lets white say the king is on h2,
the blackqueen on f3
the blackking on f4

I cannot drive him into a cornar anymore because I need to cover my queen with my king, however if I move my king forward to give cover I already have stalemate or I would put myself into check.
well, my advice could be a little faulty. you don't have get your queen as close as possible. just get your king near the opponent's queen, with your queen's help -that is, taking away legal squares. then tactics begin to work. I think you should work on tactics a little.

to your question, here's a "brute force", lines for mate for every legal move the opponent king has is below:

1... Qe2+
if
2.a: Kh1 2... Kf3 3. Kg1 Qg2#
2.b: Kh3 Qa2 3. Kh4 Qh2#
2.c: Kg1 Kg3 3. Kh1 Qh2#

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Originally posted by zebano
Are you in a game where this is the case right now? If not, I can explain it...
I don't think he is so it should be ok.

What you want to do is limit the possible opponent K moves whilst still allowing at least one legal square until you mate, with Q giving check whilst being defended by your K.

Lets take the pieces in their starting positions ie:
Qd1, Ke1 & black Ke8

Your first move as white should be
1.Qd6 which limits the black K to just the f7 square & cuts-off the d-file & 6th rank.
Black replies
1...Kf7
You need to bring your K up the board to give mate & you've already limited the black K to as few squares as possible with Qd6 so:
2.Ke2...Ke8 doesn't matter where black moves really
3.Ke3 coming in for the kill 3...Kf7
4.Kf4...Kg7
5.Kf5...Kf7

Since your K now attacks the e6/f6/g6 squares, you now use your Q to further limit black's possible K moves.
so:
6.Qd7+
Now the black K has only 2 moves, Kf8 or Kg8
6...Kg8
7.Kf6 white still allows 2 legal moves but both result in mate.
7...Kf8
8.Qf7#

or
7...Kh8
8.Qg7#


The principle is exactly the same wherever the pieces are - limit the possible moves of the opponent's K, forcing him into the edge or corner of the board.

Another example starting:
White Ke1, Qe7
Black Kd4

1.Kd2...Kc4
2.Qd6...Kb5
3.Kc3...Ka5
4.Kc4...Ka4
5.Qb4#

You get the picture

The mistake that beginners make is not to use both K & Q to mate, just trying to chase the opposition K around the board with the Q.

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Thank you guys 🙂.
I always did know it was possible but never could find out how.

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Originally posted by Northrend
Thank you guys 🙂.
I always did know it was possible but never could find out how.
You should also look around the web. There are some good sites for learning rook + king vrs king (a must) and when you advance a little 2 bishops + king vrs king.

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For King-Queen, you have two possible ways to do it, although the approach is the same in either case.

The approach is simple, use your king and queen to back his king to the edge, and if possible to a corner (although this isn't necessary).

You will want to be careful to leave his king somewhere to move in order to avoid stalemate.

Ideally, you'll want your king directly opposite and 2 spaces away from his, so that he is trapped on a single edge. From here you can do one of two things.

1) You can check his king along the edge, using your king and possibly the queen's diagonal attack to prevent him from escaping.

2) You can move the queen onto the rank/file next to the edge and sit her right next to his king, under the watchful defense of YOUR king.

The method is similar for rooks, only you have to corridor the king, and you don't have a diagonal attack to keep him pinned in if he's not in a corner and not opposing your king.

Do note that you can force the enemy king back opposite your own by shifting or blocking his way out or away.


White to move shifts his rook
Black to move is forced.

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Originally posted by Northrend
can some1 show me how to set a player checkmate with only a queen and a kind because it turns out in a draw all the time.

Thank you,
Northrend
Try Thread 57654

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I walked him through the process with a set piece game. I think he has the idea now.