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keldorn
Promising
Known Hero
that casts green flames
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posted November 06, 2009 08:22 PM |
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Again, nice job everyone! Your answers were very good.
Unfortunately I may be offline this weekend, so if you have some puzzles, feel free to post them. I'll be back on monday or maybe sooner.
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TheDeath
Responsible
Undefeatable Hero
with serious business
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posted November 06, 2009 08:32 PM |
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Damn I missed it, was it Re8-e3?
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The above post is subject to SIRIOUSness.
No jokes were harmed during the making of this signature.
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ohforfsake
Promising
Legendary Hero
Initiate
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posted November 06, 2009 08:52 PM |
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Quote:
Damn I missed it, was it Re8-e3?
Oh why didn't I see that move.
I think I've found a solution for a checkmate in every case, or loose of queen, is it okay if I post it directly in this thread?
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Living time backwards
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keldorn
Promising
Known Hero
that casts green flames
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posted November 06, 2009 08:54 PM |
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Edited by keldorn at 20:56, 06 Nov 2009.
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Yes, it could be, but my move in the game was Bf5xd3! and the bishop is immune from recapture (if Qc2xd3?? Bd6-g3+! is a discovered attack on white's queen). Thus, the white Queen must move away, and then Bd6-g3+ forks and wins another piece.
Your move wins a piece and a pawn plus it leaves black with more positional advantage due to his big attack. My choice was played for larger material gains, not positional attacks. The two moves are about equally good.
EDIT: Yes, you can, everyone has posted their solutions already.
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ohforfsake
Promising
Legendary Hero
Initiate
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posted November 06, 2009 09:24 PM |
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Quote:
EDIT: Yes, you can, everyone has posted their solutions already.
Thank you. 
It may be incorrect though, I tend to miss something obvious, but anyway here goes:
I'll try to cover every single option, so it's clear that either white looses the queen or is getting checkmated forced in X moves.
Black to move:
Scenario 1 - Queen variations 1
White - Black
- Bxd3
Qd1 - Bg3 checkmate
Scenario 2 - Queen variations 2
White - Black
- Bxd3
Qb1 - Bxb1 (Wins Queen)
(There's probably a checkmate as well, in stead of getting the queen, I suppose the procedure of the King Variations down in my text can be applied here as well, but I haven't looked into it)
Scenario 3 - Queen variations 3
White - Black
- Bxd3
Qb2 - Bg3 check
Kd1 - Be2 check
Kc2 - Qd3 checkmate
Scenario 4 - Qa2 & King Variations 1
White - Black
- Bxd3
Qa2 - Rxe3 check
Kd1 - Be2 check
Ke1 - Bg3 checkmate
Scenario 5 - Qa2 & King Variations 2
White - Black
- Bxd3
Qa2 - Rxe3 check
Kd1 - Be2 check
Kc2 - Qd3 check
Kb2 - Qxc3 check
Kb1 - Bd3 checkmate
Scenario 6 - Qa2 & King Variations 3
White - Black
- Bxd3
Qa2 - Rxe3 check
Kf2 - Re2 check
Kg1 - Rxg2 checkmate
Scenario 7 - Qa2 & King Variations 4
White - Black
- Bxd3
Qa2 - Rxe3 check
Kf2 - Re2 check
Kf1 - Rxd2 check (wins Queen)
Scenario 8 - Qa2 & King Variations 5
White - Black
- Bxd3
Qa2 - Rxe3 check
Kf2 - Re2 check
Kxf3 - Ne5 check
Kg3 - Ng6 check
Kf3 - Sxh4 checkmate
Scenario 9 - Qa2 & King Variations 6
White - Black
- Bxd3
Qa2 - Rxe3 check
Kf2 - Re2 check
Kxf3 - Ne5 check
Kf4 - Ng6 check
Kf3 - Sxh4 checkmate
Scenario 10 - Qa2 & King Variations 7
White - Black
- Bxd3
Qa2 - Rxe3 check
Kf2 - Re2 check
Kxf3 - Ne5 check
Kf4 - Ng6 check
Kg5 - h6 checkmate
Maybe it'll be checkmate no matter what, but if that's the case, then I don't see it.
Also, if I've made any mistakes in the above, or you've any other kind of comment, I'll of course reply, it's very likely there are mistakes, as it was done in the head and not on a board.
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keldorn
Promising
Known Hero
that casts green flames
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posted November 07, 2009 09:44 AM |
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Well, if we say there's a mate in the position, it means that it doesn't matter what our opponent moves, so the mate is forced.
...Bxd3. You are right that if white moves Qd1, Qc1, Qd2 it's mate or loss of Queen. But if he moves Qa2, it's correct defense.
Quote:
Scenario 4 - Qa2 & King Variations 1
White - Black
- Bxd3
Qa2 - Rxe3 check
Kd1 - Be2 check
Ke1 - Bg3 checkmate
After 3... Be2+ white won't move Ke1?? (Bg3# you saw it well), but Kd2 instead. I analysed the position and it appears that white must give up his Queen to avoid mate, but this requires further 5-6 moves.
I saw you analysed Qa2 as well.
Quote:
Scenario 5 - Qa2 & King Variations 2
White - Black
- Bxd3
Qa2 - Rxe3 check
Kd1 - Be2 check
Kc2 - Qd3 check
Kb2 - Qxc3 check
Kb1 - Bd3 checkmate
After Kc2 black can't play Qd3+ because the bishop on d6 still blocks her. After the first move I recommend Bg3+ instead of Rxe3+
After further analysis I realised that after ...Bxd3 2.Qa2 Bg3+ (best) 3. Kd1 Rxe3 (with a huge attack) 4.Bb2 (freeing c1 for the king) ...Bxh4 is the best, altough it does lead to checkmate in the next 10-15 moves. Your variations are good, but you missed the best defense for white. But you covered the problem with 90% efficiency-absolutely great job 
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ohforfsake
Promising
Legendary Hero
Initiate
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posted November 07, 2009 10:39 AM |
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Ah yes, true, the bishop is blocking the queen. This somehow reminds me of when I was younger and playing, always missing the little detail meaning lots of my work was in vain. 
But I think you're right, it'll eventually end up in a checkmate, after all for white following is true to avoid loosing the queen:
1 Knight all in the side, can't move very well.
1 Bishop blocked in.
1 Queen, blocked in by king(!) and rook.
1 Rook, blocked in by king(!) and queen.
pawns not guarding eachother
1 Inactive Rook.
While black have both 2 bishops, 1 rook and 1 queen in attack and can easily add his knights to the attack as well.
I think a pressure on the (new) king side will end up in a checkmate simply due to a much better position on the board (can get more pieces attacking a given spot, than what white can manage to defend with).
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keldorn
Promising
Known Hero
that casts green flames
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posted November 10, 2009 04:19 PM |
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Hi again!
This puzzle is the easiest one of the few I've posted so far, but don't worry, more difficult ones will follow
Here I was black. My opponent took a poisoned pawn with Bxh6??. How should black proceed?
HCM me as usually. Thx and good luck.
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keldorn
Promising
Known Hero
that casts green flames
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posted November 12, 2009 04:11 PM |
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This time the move is Ne5xf3+! removing the defender of the Queen. If white doest't recapture our Knight then Nf3xh4, if does with g2xf3, Qd8xh4! wins.
And I think we can move on to a little trickier puzzles. This following one is not very difficult in case you notice something important. White to move and mate in 2.
This time I'd like you to post your solutions in a different way. Send me a HCM about your first thoughts. Then I'll write back, but will only say "correct" or "incorrect", withiut telling you why. If you got the solution, send me a second HCM, etc. Two days later I'll let you post here in this thread so that you can see into each other's mind, making it easier to find out the answer, now in a group.
Good luck
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B-E-T-A
Promising
Legendary Hero
Guess Who is Back?
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posted November 12, 2009 05:37 PM |
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Edited by B-E-T-A at 17:38, 12 Nov 2009.
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Coming in to discuss :P
Quote:
Did you know these tricks before I told you?
Yeah, sure I did. Just didn't know they had a name. I mean, it is the basic of chess and even a child should know them by heart(coming from the guy who is addicted to chess)!
But I am glad that such a thread like this came up. Would love to play with you guys, but I have no chess software on my computer D:
Quote:
Well if you have a classic chess set, you can turn a rook upside down (as most of the rooks have flat top, so it stands turned up too.)
In what fantasy land is that? Sure not in the real world I know of.
Funny thing is how the names are in english. In Norway we call them
"Farmer" = "Pawn"
"Tower" = "Rook"
"Knight" or "Horse"
"Runner" = "Bishop"
and the rest are the same.
Hmmm about the second riddle you asked us:
Quote:
Here black has a mate in one move. How can white prevent this, with winning material?
What about moving B2-B4? It ruins blacks plan of checkmate.
I'm still reading through this thread and will catch up eventually.
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There is no good or evil, only madness. The question is "Just how mad are you?"
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Keldorn
Promising
Known Hero
that casts green flames
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posted November 12, 2009 05:49 PM |
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Well, b2-b4 does prevent mate by uncovering the bishop's attack on a1, but how does that equalize the position? Remember, your move must secure mate and win material.
Anyway, good to have another chess fan with us. Welcome, and have a good time
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ihor
Supreme Hero
Accidental Hero
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posted November 12, 2009 06:08 PM |
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Quote:
Would love to play with you guys, but I have no chess software on my computer D:
http://www.chess.com - no software needed. I'd also liked to play with you all, but I usually have no much time.
Quote:
Funny thing is how the names are in english. In Norway we call them
"Farmer" = "Pawn"
"Tower" = "Rook"
"Knight" or "Horse"
"Runner" = "Bishop"
and the rest are the same.
It is interesting in Ukrainian bishop = officer or sometimes elephant
knight = also horse.
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B-E-T-A
Promising
Legendary Hero
Guess Who is Back?
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posted November 12, 2009 07:47 PM |
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@ihor, how every intresting. I've registrated myself on chess.com btw.
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There is no good or evil, only madness. The question is "Just how mad are you?"
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keldorn
Promising
Known Hero
that casts green flames
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posted November 13, 2009 03:42 PM |
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For those trying to solve my last mate-in-2, and I told them "you haven't considered something", a little advice is to go through my chess summary and diccionary. If you see carefully, you should find out what's missing.
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keldorn
Promising
Known Hero
that casts green flames
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posted November 14, 2009 09:43 AM |
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Edited by keldorn at 09:44, 14 Nov 2009.
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OK, now that the 2 pays have passed since I gave you the puzzle, you can begin posting your solutions here in this thread. I recieved one suggestion from 5 people: Qa1. Looks like it works. Or maybe not? 
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ihor
Supreme Hero
Accidental Hero
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posted November 14, 2009 12:02 PM |
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Dammit, it doesn't work, the only thing we all missed that Black could make O-O-O move.
*Starts thinking again*
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ohforfsake
Promising
Legendary Hero
Initiate
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posted November 14, 2009 01:02 PM |
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Yeah, I also missed the 0-0-0, I can't see any solution when it can be applied, but anyway, here's my thoughts.
#1 Do there exist a 1 move mate after black have commited 0-0-0?
If not, only moves that hindesr the 0-0-0 should be looked at.
#2 The king only have very few places to move, and is needed to perform a checkmate, most likely, so moving the king is most likely not the solution.
#3 Therefore, it's most likely the queen that should be moved, but to hinder 0-0-0 there's only a very limited amount of options, and all those does not seem to provide a mate in the next move.
I could go into more detail, if anyone would like.
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TheDeath
Responsible
Undefeatable Hero
with serious business
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posted November 14, 2009 05:30 PM |
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Are you sure it's 2 moves and not 3 moves, keldorn?
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The above post is subject to SIRIOUSness.
No jokes were harmed during the making of this signature.
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keldorn
Promising
Known Hero
that casts green flames
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posted November 14, 2009 06:02 PM |
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Yes it's a mate in two. O-O-O! was a tough defensive move to find. So how do we handle it?
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ihor
Supreme Hero
Accidental Hero
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posted November 14, 2009 06:28 PM |
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Can that queen move like knight also?
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This thread is pages long: 
