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Collection of my Diary Problems



 
 
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  #1  
Old September 8th 03, 04:29 PM
Fernando
external usenet poster
 
Posts: n/a
Default Collection of my Diary Problems

Hello all,

I placed a *dipr.pgn* file (pun intended) in a directory on my homepage.

It contains the problems I have posted here, in total 38. It does not
contain the answers as most problems do not need more then 1-2 minutes to
solve, though some of the problems need some more (or non-engine)
experience.

Best regards,
Fernando


*Note that it won't be updated often.



  #2  
Old September 8th 03, 04:57 PM
Antonio Torrecillas
external usenet poster
 
Posts: n/a
Default Collection of my Diary Problems

En/na Fernando ha escrit:
Hello all,

I placed a *dipr.pgn* file (pun intended) in a directory on my homepage.

It contains the problems I have posted here, in total 38. It does not
contain the answers as most problems do not need more then 1-2 minutes to
solve, though some of the problems need some more (or non-engine)
experience.

Best regards,
Fernando

*Note that it won't be updated often.


can you remind us the link?
AT

  #3  
Old September 8th 03, 08:40 PM
Fernando
external usenet poster
 
Posts: n/a
Default Collection of my Diary Problems


"Antonio Torrecillas" schreef in bericht
...
En/na Fernando ha escrit:
Hello all,

I placed a *dipr.pgn* file (pun intended) in a directory on my homepage.

It contains the problems I have posted here, in total 38. It does not
contain the answers as most problems do not need more then 1-2 minutes

to
solve, though some of the problems need some more (or non-engine)
experience.

Best regards,
Fernando

*Note that it won't be updated often.


can you remind us the link?
AT


That would be a smart idea indeed. :-(
It's http://home.tiscali.nl/sfictie

Best regards,
Fernando



  #4  
Old September 10th 03, 01:11 AM
Doctor SBD
external usenet poster
 
Posts: n/a
Default Collection of my Diary Problems

Every single "problem" I accessed was just a starting position/

SBD
  #5  
Old September 10th 03, 01:26 AM
Antonio Torrecillas
external usenet poster
 
Posts: n/a
Default Collection of my Diary Problems

En/na Doctor SBD ha escrit:
Every single "problem" I accessed was just a starting position/

SBD


The problem is that fernando mixed the order of some tags in the headers
of the games.

Try with this (copy and paste as a pgn file):

-------------------------------

[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r1bqk2r/1p3ppp/p3p3/2p5/P1P1Q3/2b1BN2/1n1NKPPP/R6R b kq - 0 15"]

{An interresting position where White wrongly tried to leave his Queen
in the middle of the play field with 16. Qf4. -- The text line given
contains several weak moves and as such give quite an oppertunity to
"analyse".}
1... f5 {What move is better then Qf4?} 2. Qf4 $4 Qd3+ 3. Ke1 O-O 4. Ne5 $4
{How does black continue?} *


[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "3rb2r/pp6/6k1/2b2Rp1/4P1P1/2P5/PP4K1/R1B5 b - - 0 28"]

{Black makes 2 blunders in a row, which become obvious at the end of the
text line.}
1... b6 2. Rxg5+ Kh7 {How does white win the game?} *


[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r4rk1/p1pbbppp/2pp1n2/8/2B1P2q/2NQ4/PPP2PPP/R1B2RK1 w - - 0 11"]

1. Re1 {What good move for Black did white overlooked?} *


[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r4b1r/pp1n4/2p2k1p/7Q/4R3/8/PPP2PPP/6K1 w - - 0 19"]
[PlyCount "1"]

{White to play and mate in three.} 19. Qf3+ *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r2k3r/pp3ppp/8/3P1b2/1n6/P7/1B3PPP/2KR2NR b - - 0 19"]
[PlyCount "0"]

{How does black continue} *

[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]

1. e4 c5 2. Nf3 Nc6 3. d4 e6 4. d5 exd5 5. exd5 Nd4 6. Nxd4 cxd4 7. Qxd4 d6
8. Be2 Nf6 9. O-O g6
{Completely unaware of the game, Black continues his development,
commonly known for the Sicilian, with g6, preparing for ... Bg7 and ... 0-0.
White now has a winning combination.}
*


[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "5k2/p4ppp/8/3n4/8/8/P1P2PPP/4B1K1 w - - 0 24"]

1. c4 Ne7 {How should white continue and why?} *


[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "8/p4ppp/2n1k3/2P5/1BK2P2/P7/6PP/8 b - - 0 33"]

{Kf5 is a blunder, what should black have played?} 1... Kf5 $4
{How does white continue?} *


[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r1b1k2r/1p2b2p/pq3np1/3PQ3/2Bp4/1P5P/P1P2PP1/R3R1K1 b - - 0 19"]

1... Qd8 $4 {White to play and win} *


[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r2q1rk1/3bppbp/p1np1np1/1p6/3NPP2/2N1BB2/PPPQ2PP/3R1RK1 b - - 0 12"]

{In this Sicilian Najdorf, Black noticed a "simple exchange", which
deviated from the theme of advancing the a and b pawns (or just simple
the Queenside attack) and hoped to force the white Rook on d1 away (and
thus removing whites threath on black d6 pawn.)}
1... Ng4
{Actualy, the idea behind it is wonderfull, but completely useless as
white has a sharp reply. Q) What is white's best move?}
2. Bxg4 Bxg4 *


[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "3qkb1r/1p1bppnp/1B1p2p1/1p1NP3/rn4P1/5N2/PPPQ1P1P/R3K2R b KQk - 0 14"]

{sometimes white has a chance to give black a nice Knightmare.} 1... Qc8 $4
{How does white continue?} *


[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r5k1/1pp3p1/p2pb2p/8/3R4/N4PB1/nPP1r1PP/3R2K1 b - - 0 19"]

{From this position, Black /tried/ to create a free haven for his knight on
b4 with:
19... a5??,}
1... a5
{After which the White Rook's threath on b4 is nihilated.
How does the line continue on the following 3 moves?}
*


[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r1bqk2r/pppp1npp/2n5/2b5/2BpP3/8/PPP2PPP/RNBQK2R w KQkq - 0 7"]

{How does black gain a pawn after white's Qh5?} 1. Qh5 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "1r4k1/2R2p1p/4p1p1/3p4/1q4P1/1r5P/5P2/2Q1R1K1 b - - 0 27"]
[PlyCount "0"]

{Black to play. (For the curious # in 19)} *

[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r3r3/pp2qpkp/3R3p/2p5/P3p3/1P5P/2PQ1PP1/4R1K1 w - - 0 25"]

{the end result of text line leaves black open for a mate in 5.} 1.
Qxh6+ Kg8
2. Re3 f5 {White to play and mate in 5.} *


[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r6k/7p/2P1p1p1/p7/4P3/7P/1P4P1/2K1R3 w - - 0 29"]
[PlyCount "0"]

{(for the advanced) White only has to avoid that black's King occupies c7.
How does white continue?}} *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "6k1/1r2b3/3p4/2pPp1pn/2P1N3/1P1P3p/2KB4/R7 b - - 0 34"]
[PlyCount "0"]

{What is the best move for black?} *

[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "3r1r1k/1Q1b2p1/7p/2p3b1/p1Pp4/8/PPB2PPP/R5K1 b - - 0 26"]


{What is the best move for black?} *

[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "rnb1kbnr/pp2qpp1/2pp3p/4p3/3PP3/2N1BN2/PPP1BPPP/R2QK2R b KQkq - 0 6"]

{From this position black plays: 6... g6

Would you play 7.d5 ?} 1... g6
2. d5 *

[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "rn2k1BB/pp2b3/2p2ppp/2q5/8/2N5/PPP2PPP/R2QR1K1 w q - 0 17"]

{White to play.} *

[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r4rk1/p1p2ppp/n7/3bp3/2q5/2P3P1/P1Q1NK1P/R1B1R3 w - - 0 16"]

{White played Be3?
How does black continue?} 1. Be3 {Black to play.} *


[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "rnbqkb1r/p1p2ppp/8/1N1Pp3/2p1n3/8/PP3PPP/R1BQKBNR w KQkq - 0 7"]

{What is black's response if white recaptures with 7.Bxc4?} 1. Bxc4 $4 *

[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r1bqr1k1/p1n2pbp/3p1np1/1ppP4/2P2P2/PPNB1N2/6PP/R1BQ1RK1 b - - 0 1"]

{White just played b3. Black to play.} *


[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r1bq1rk1/ppp1ppbp/3p1np1/3P4/1nB1P3/N4N2/PPP2PPP/R1BQ1RK1 b - - 0 1"]

{From this position black plays: Nxe4
What is white's reply?} 1... Nxe4
{White to play.} *

[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r1b1kb1r/pp4pp/3p4/3p1PB1/1n1N4/6PP/PPP1B3/R4RK1 b kq - 0 15"]

{From this position black played: 15... Bd7.
Compare with the next position where white plays (meaning an extra tempo
for white)}
1... Bd7 {White to play} *

[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r1b1kb1r/pp4pp/3p4/3p1PB1/1n1N4/6PP/PPP1B3/R4RK1 w kq - 0 15"]

{White to play.
(see previous position)} *

[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "2r2n2/p5Qp/3pk3/q2N4/3P4/8/PPP2PPP/R5K1 w - - 0 23"]

{White to play and mate. (# in 11)} *

[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r1bq1rk1/1p1n1pbp/p1n1p1p1/4P3/N1pB4/P4N1P/1PP2PP1/R2QR1K1 b - - 0 1"]

{Black to play.} *

[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r1bq1rk1/1p3pbp/p1nppnp1/2p5/2B1P3/P1NPBN1P/1PP2PP1/R2QR1K1 b - -
0 10"]

{(For the advanced) Black plays d5??} 1... d5 *

[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "rnbqk3/pp3p1p/4p1r1/2pp4/3Pn3/P1N1Q3/1PP2PPP/R1B1KB1R b KQq - 0 1"]

{(Advanced) Search the blunder and best move.} 1... Nc6 2. dxc5 *

[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "3r2k1/Q5pp/5b2/1p1q1r2/2p3R1/4B3/PP4PP/4R1K1 b - - 0 1"]

{Black to play.} *

[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r3qrk1/pp1n2pp/2n1b3/1N1pP3/3P4/8/PP1QBPPP/R3K2R w KQ - 0 1"]

{How does black play after 1.Nc7 forking the black Rook and Queen?} 1. Nc7 (
1. O-O) *


[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nxf7 Kxf7 5. d4 Nxe4 $4 {White to play.} *

[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r1b1k2r/2Bpbppp/2p5/p7/N3P1n1/2P3P1/PP1RBP1P/4K2R b Kkq - 0 14"]

{How does white continue after 14... d6?} 1... d6 *

[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r2q1rk1/1bp1bppp/p7/1p2P3/1n1P2R1/5N2/PP3PPP/R1BQ1NK1 b - - 0 16"]

{How does white continue after Bd5?} 1... Bd5 *

[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r1b1kbnr/pppp1ppp/5q2/4n3/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - 0 6"]

{Instead of Qh4, black played Qf6.
White could reply with f4, but is there a better move?}
*

[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "2r1k2r/pp1bpp1p/7p/1q6/2N1P3/BP3P2/P2K1PP1/5B1R b k - 0 20"]

1... Be6 {How does white continue?} *

[Event "?"]
[Site "?"]
[Round "?"]
[Date "????.??.??"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "5k2/5ppp/p1Nq4/1pn1p3/8/2P5/PPQ2PPP/6K1 w - - 0 27"]

{Two blunders. Can you do better then both players?} 1. Nb4 Ne4 *

 




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