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homm3megejas
Adventuring Hero
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posted August 03, 2008 11:24 AM |
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Simple  1.Re1-Re8+, black king is in attack, so they can do only 2 moves: 1. ... Kd8-Kd7 2. Re8-Ra8* white has a extra bishop, pawn in B line has open way, easy victory  ; 1. ... Kd8-Ke8* 2.Bb5-Bc7+ Ke8-K~ 3.Bc7-Ba8, white has extra bishop, black has extra rook, but white has a good pawn in B line, so they can hope to end in draw . Sorry, for bad english.
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Doomforge
Admirable
Undefeatable Hero
Retired Hero
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posted August 03, 2008 11:41 AM |
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e1 e8 +
d8 x e8
b5 c8 +
any move
c8 x a8
gets rid of the queen and you have your pawn to charge forward so you can convert him but dont forget you can't apply a checkmate with one knight and one bishop alone.. Takes some skill to finish this with a victory, I'm afraid. 
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Lexxan
Honorable
Undefeatable Hero
Unimpressed by your logic
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posted August 03, 2008 11:47 AM |
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Nasty Situation? You can't check the king with any for your pieces, save the Rook...
I would Move the Rook one space forward.
____________
Coincidence? I think not!!!!
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Doomforge
Admirable
Undefeatable Hero
Retired Hero
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posted August 03, 2008 12:06 PM |
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that won't work, Lexxan
h7 h8 +
d1 d2
a8 d5 +
any move
d5 x b5 and you're pretty much done for.
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keldorn
Promising
Known Hero
that casts green flames
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posted August 03, 2008 12:12 PM |
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Edited by keldorn at 12:13, 03 Aug 2008.
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The problem is that white can't win at all, but can draw. Sacrificing a rook to set up a royal fork is the best white can do.
Moving the rook 1 square forward fails to: Rxe2 Kxe2. Black has a queen. (perhaps Qa2 afterwards)
Nice work dudes! Next riddle soon.
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JoonasTo
Responsible
Undefeatable Hero
What if Elvin was female?
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posted August 03, 2008 12:16 PM |
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Edited by JoonasTo at 12:27, 03 Aug 2008.
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I'm trying to learn these codes here. That e1 x e8 is good because you get rid of the queen no matter what but what about b5 x a3?
a8 x d5
d1 x c1
and then what?
As I said I haven't ever learned chess soi don't hit me.
EDIT: Typo's,  looks better now?
Awesome sig by the way.
____________
DON'T BE A NOOB, JOIN A.D.V.E.N.T.U.R.E.
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Minion
Legendary Hero
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posted August 03, 2008 12:16 PM |
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Edited by Minion at 12:23, 03 Aug 2008.
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This was a good one, had to think about it a while. 
@Joonas. Knight b5-e3? Knight doesn't move that far...
____________
"These friends probably started using condoms after having produced the most optimum amount of offsprings. Kudos to them for showing at least some restraint" - Tsar-ivor
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keldorn
Promising
Known Hero
that casts green flames
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posted August 03, 2008 12:56 PM |
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Edited by keldorn at 13:10, 03 Aug 2008.
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So this post is to make things clear about the language of chess.
Algebraic notation
This type of notation shows us the piece names, which moves.
B for bishop
N for knight
K for king
Q for queen
R for rook
file letter for pawn (e.g: e4)
If the move is misunderstandable, we put an identifying letter after the piece name: If both rooks can move to d4, we say Rfd4, indicating that hte rook on the f-file moves.
x means takes. (Rxd2= rook captures piece on square 'd2')
Next characters are the destination square's parameters. (Bf6= bishop moves to f6)
Next letters indicate special events. These are:
b8=Q pawn moves to b8, promoting into queen
exf6ep pawn captures pawn on f6, en passant (see my post about ep before)
The last character indicates check (+ sign) or checkmate(++ or #)
Here is a complicated example: Rdxa6+ Rook on d-file captures on a6, delivering check.
European notation
This doesn't name the piece, but identifies them of their starting squares.
Instead of saying Rd4, it says d1-d4 (if the rook was on d1)
Also possible: d1xd4 if the rook captures.
All others are similar to the algebraic.
Example: e7-e8=Q# Pawn on e7 moves to e8, promoting to queen, mating the enemy king.
In both of the notations, we write O-O for castling kingside (short) and O-O-O for queenside (long)
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TheDeath
Responsible
Undefeatable Hero
with serious business
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posted August 03, 2008 01:17 PM |
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I prefer the European notation. I never really understood the algebraic notation since it can be ambiguous.
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Doomforge
Admirable
Undefeatable Hero
Retired Hero
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posted August 03, 2008 01:21 PM |
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Most of the books use the algebraic, though. Perhaps its because it takes less space and is in general less confusing when you write move-after-move (not in columns, like I do )
I generally prefer European too, though.
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keldorn
Promising
Known Hero
that casts green flames
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posted August 03, 2008 01:26 PM |
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Well, I like algebraic... For me, it's easier to see what piece moves, than from what square. But it's just my opinion  . That's why there are 2 types of notation.
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TheDeath
Responsible
Undefeatable Hero
with serious business
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posted August 03, 2008 01:29 PM |
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I guess too much programming and math made me too "number" and grid oriented, because for me the European notation is similar to 2D coordinates
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homm3megejas
Adventuring Hero
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posted August 03, 2008 01:54 PM |
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Actually, you can win with king, 1 bishop and 1 knight vs enemy king, but this is very hard (you need push him into bishop's colour corner). Even I can't do this, but know, that this is possible.
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Doomforge
Admirable
Undefeatable Hero
Retired Hero
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posted August 03, 2008 02:08 PM |
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it is, but it takes ages, so to avoid pointless waste of time, the player who is left with only the king surrenders.
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Minion
Legendary Hero
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posted August 03, 2008 05:29 PM |
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@Joonas
The material advantage of black is so huge, it is a sure loss if you do such a move. The queen will start the pressure, Qa8-Qa4+ is a good start. Queen can check a few times and soon you can force the white player to exchange the Rooks, and the situation is after that even more dire for the white player.
____________
"These friends probably started using condoms after having produced the most optimum amount of offsprings. Kudos to them for showing at least some restraint" - Tsar-ivor
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keldorn
Promising
Known Hero
that casts green flames
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posted August 04, 2008 09:45 AM |
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Hi all.
Here's the next exercise. Check it out, and god luck
Black to move. The answer contains a double attack and a fork.
____________
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homm3megejas
Adventuring Hero
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posted August 04, 2008 11:15 AM |
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This is harder . 1. ... B*h2+! 2. K*h2 Qh5+ 3. Kg3 Ne4+ 4. Kf4 N*d2 black has a queen for a knight. If 2.Kh1 Qh5 3. ~ Bg3+ 4. Kg1 Qh2*. If 3. Rf1-... , then 3. ... Bf4 and 4. ... Bd2* and black has a queen for a bishop. If 3. g3, then maybe 3. ... B*g3+ 4. Kg2 Qh2+ 5. Kf3 ... and black has better, since white king are open for attack, will think more later . So a flub  Damned Bc2 ;(. Ok, i'm wrong. Let's see other guesses.
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keldorn
Promising
Known Hero
that casts green flames
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posted August 04, 2008 11:39 AM |
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There's no point in your bishop sarcifice. You can deliver some checks with your queen, but you have no serious attack chances without the help of your rooks. Besides, white can do several things to defend. Only one of them: pawn to h3.
____________
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Lexxan
Honorable
Undefeatable Hero
Unimpressed by your logic
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posted August 04, 2008 11:47 AM |
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If you can move a White Knight to the place where the Black Knight stands, you can fork the Rook and the King...
We DO play with White, don't we?
____________
Coincidence? I think not!!!!
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Doomforge
Admirable
Undefeatable Hero
Retired Hero
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posted August 04, 2008 12:48 PM |
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Well, you can do a lot of things here.
Here's what I think. May not be the answer you expect, but I think its a nice tactic.
b5 h5
h2 h3 (forced move because the next move would be checkmate, and all other options that prevent it lead to heavy loses or horrible positions.)
f6 g4. (feel the pressure. h3 x g4 impossible, instant checkmate at hand, if the white don't want to lose their Queen in the next few moves they pretty much have to move her now, so.. c2 d1 also does not prevent the problematic forks the knights can apply sooner or later)
d2 c3 (best move imho, others give no benefits or lead to nasty fork/double attacks)
g4 x h2 (rook attacked, I assume the player does not sacrifice it, although it may not be a bad thing after all thats why d2 c3 was so important, next move of the knight would be h2 f3, extremely nasty fork leading to lose of the queen, g2 x f3 leads to checkmate)
f1 e1 (not a bad move though the central pawn protection is important it prevents h5 h4 which is extremely BAD and leads to quick checkmate.)
b7 b5 - fork Pretty nasty, all the white knights' moves suck and they will lose one anyway
up to your imagination from now, White have clear advantage atm, they can sacrifice both of their knights to equalize their position or sacrifice only one and gain little in return.
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