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  #16  
Old August 11th, 2010, 07:58 PM
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Re: Tougher Chess Puzzles (force several moves and win)

For Puzzle 1, how about we sacrifice a black knight to see if we can make an opening and get on the offensive?

black knight at E5 to C6 - Check
White Pawn @ b7 takes black knight @ c6
Black Q @ F6 takes white pawn @ c6
White Rook @ F4 moves to f2
black queen moves to c3 from c6

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  #17  
Old August 11th, 2010, 08:35 PM
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Re: Tougher Chess Puzzles (force several moves and win)

Quote:
Originally Posted by 28virgo View Post
For Puzzle 1, how about we sacrifice a black knight to see if we can make an opening and get on the offensive?

black knight at E5 to C6 - Check
White Pawn @ b7 takes black knight @ c6
Black Q @ F6 takes white pawn @ c6
White Rook @ F4 moves to f2
black queen moves to c3 from c6

After the bold move, other moves are not forced. And White can play many other moves, so cannot go this way.
Man this puzzle is driving me crazy
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  #18  
Old August 11th, 2010, 09:59 PM
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Re: Tougher Chess Puzzles (force several moves and win)

apun ko to dono hi draw lag rahe hai
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  #19  
Old August 12th, 2010, 11:14 AM
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Re: Tougher Chess Puzzles (force several moves and win)

landya bhai solution to post karo.
Have this puzzle in my head since yesterday
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  #20  
Old August 12th, 2010, 11:45 AM
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Re: Tougher Chess Puzzles (force several moves and win)

Quote:
Originally Posted by sunnykode View Post
landya bhai solution to post karo.
Have this puzzle in my head since yesterday
Sunnybhai, I will post it soon ... give me a day or two.
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  #21  
Old August 12th, 2010, 12:30 PM
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Re: Tougher Chess Puzzles (force several moves and win)

In the mean time, enjoy this:

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  #22  
Old August 12th, 2010, 12:35 PM
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Re: Tougher Chess Puzzles (force several moves and win)

Quote:
Originally Posted by landyaBhai View Post
Puzzle 1: Black to play and force moves on white such that black eventually wins (or maybe white just gives up)



Code:
FEN: 1KR5/PPP2P1P/r4q2/4n3/1Q3R2/3p4/pp4pp/1kr5 
You can load this FEN code in chessup.net and try variations visually (instead of mentally )
This puzzle is upside down -
White and Black's pawns are on verge of queening -

White's base is a1 to h1 - not a8 to h8.
It is just a mistake in numbering though.
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  #23  
Old August 12th, 2010, 12:40 PM
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Re: Tougher Chess Puzzles (force several moves and win)

Quote:
Originally Posted by Napolean View Post
This puzzle is upside down -
White and Black's pawns are on verge of queening -

White's base is a1 to h1 - not a8 to h8.
It is just a mistake in numbering though.
Yes there is a mistake in numbering ... but folks you could use the same numbering and continue ...
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  #24  
Old August 12th, 2010, 12:45 PM
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Re: Tougher Chess Puzzles (force several moves and win)

Quote:
Originally Posted by sunnykode View Post
smelly pai
what if after the step in bold above, white moves queen to e1? Then the puzzle is still open
I think even if White q puts black K in check ,K can move itself out of check and after a few moves ,there won't be any further checks.And that will be the end of white.
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  #25  
Old August 12th, 2010, 08:18 PM
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Re: Tougher Chess Puzzles (force several moves and win)

Quote:
Originally Posted by landyaBhai View Post
Puzzle 2: Black to play and force moves on white such that black eventually wins (or maybe white just gives up)



Code:
FEN: 5k2/1p4pP/p7/1p1p4/8/6K1/2r3PP/8 
You can load this FEN code in chessup.net and try variations visually (instead of mentally )
[NOTE: I have reoriented the chess board to conform to the algebraic notation. The solution moves will now be understandable]

Solution moves for this puzzle:

1...Rc3+ 2.Kg4?? (2.Kf2 Rc2+ 3.Ke3 Rc3+ 4.Kd2 wins for white) 2...Rc4+ 3.Kg5 Rh4!! 4.Kxh4 g5+! The black king can now stop the white h pawn and, meanwhile, he will be able to queen one of his own passed pawns. This game is believed to be a swindle by Emanuel Lasker (black).

[employes the following tactical elements: checks,decoy,King usage]

Source: chessworld.net
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Last edited by landyaBhai; August 12th, 2010 at 08:25 PM.
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  #26  
Old August 12th, 2010, 08:20 PM
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Re: Tougher Chess Puzzles (force several moves and win)

Quote:
Originally Posted by landyaBhai View Post
Puzzle 1: Black to play and force moves on white such that black eventually wins (or maybe white just gives up)



Code:
FEN: 5rk1/pp4pp/4p3/2R3Q1/3n4/2q4r/P1P2PPP/5RK1 
You can load this FEN code in chessup.net and try variations visually (instead of mentally )
[NOTE: I have reoriented the chess board to conform to the algebraic notation. The solution moves will now be understandable], thanks Melly, updated the board to reflect the missing rook

Solution moves for this: 1...Qg3 {and white resigned because of the threat 2...Qxh2} 2.Qxg3 (2.hxg3 Ne2) (2.fxg3 Ne2+ 3.Kh1 Rxf1) (2.Qe5 Nf3+ 3.Kh1 Rxh2) 2...Ne2+ 3.Kh1 Nxg3+ 4.Kg1 Ne2+ and black is a whole N up. In the starting position black seems to be in difficulty due to his Q and R both being attacked. The spectators showered the board with gold coins when Marshall played the brilliant 1...Qg3!!

[Tactical elements: queen sacrifice,line opening,mate threat,decoy,decoy,deflection]

Source: chessworld.net
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Last edited by landyaBhai; August 13th, 2010 at 09:14 AM.
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  #27  
Old August 12th, 2010, 09:14 PM
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Re: Tougher Chess Puzzles (force several moves and win)

Quote:
Originally Posted by landyaBhai View Post
[NOTE: I have reoriented the chess board to conform to the algebraic notation. The solution moves will now be understandable]

Solution moves for this puzzle:

1...Rc3+ 2.Kg4?? (2.Kf2 Rc2+ 3.Ke3 Rc3+ 4.Kd2 wins for white) 2...Rc4+ 3.Kg5 Rh4!! 4.Kxh4 g5+! The black king can now stop the white h pawn and, meanwhile, he will be able to queen one of his own passed pawns. This game is believed to be a swindle by Emanuel Lasker (black).

[employes the following tactical elements: checks,decoy,King usage]

Source: chessworld.net
I already gave this solution
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  #28  
Old August 12th, 2010, 09:15 PM
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Re: Tougher Chess Puzzles (force several moves and win)

Quote:
Originally Posted by landyaBhai View Post
[NOTE: I have reoriented the chess board to conform to the algebraic notation. The solution moves will now be understandable]

Solution moves for this: 1...Qg3 {and white resigned because of the threat 2...Qxh2} 2.Qxg3 (2.hxg3 Ne2) (2.fxg3 Ne2+ 3.Kh1 Rxf1) (2.Qe5 Nf3+ 3.Kh1 Rxh2) 2...Ne2+ 3.Kh1 Nxg3+ 4.Kg1 Ne2+ and black is a whole N up. In the starting position black seems to be in difficulty due to his Q and R both being attacked. The spectators showered the board with gold coins when Marshall played the brilliant 1...Qg3!!

[Tactical elements: queen sacrifice,line opening,mate threat,decoy,decoy,deflection]

Source: chessworld.net
This makes no sense ... why is 2. hxg3 a bad move? so Ne2. then .. Kh2 .. black loses a queen. missing something here
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  #29  
Old August 12th, 2010, 10:09 PM
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Re: Tougher Chess Puzzles (force several moves and win)

Quote:
Originally Posted by smellyfinger View Post
This makes no sense ... why is 2. hxg3 a bad move? so Ne2. then .. Kh2 .. black loses a queen. missing something here
I do not understand any of it. How do you read the solution posted by LB?
Quote:
Solution moves for this: 1...Qg3 {and white resigned because of the threat 2...Qxh2} 2.Qxg3 (2.hxg3 Ne2) (2.fxg3 Ne2+ 3.Kh1 Rxf1) (2.Qe5 Nf3+ 3.Kh1 Rxh2) 2...Ne2+ 3.Kh1 Nxg3+ 4.Kg1 Ne2+ and black is a whole N up.
I am assuming that black will move its queen to g3? It can be taken out by even a pawn or queen, now I do not understand how to read the solution after this? Is there a convention I need to be aware of?
The bold part, I am not able to understand.
Is Ne2 Knight at e2? what is fxg3? g3 I know what is fx? similarly Rx?
Sorry if these are trivial questions, but someone pls help.

@LB, in your solution you did not put one Rook(Black) on board. The one which is on h3
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  #30  
Old August 12th, 2010, 10:22 PM
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Re: Tougher Chess Puzzles (force several moves and win)

LB ke solution ko samajhana mushkil hee nahi, namumkin hai

@sunny : Rx matlab : R = rook (haathi) , x = cross (marana) Rx matlab haathi ne maara

poora samajh aa jae to solution with graphics post kar dena
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