[Retros] New Year's update to Retro Corner

Otto Janko otto at janko.at
Sun Jan 4 07:16:08 EST 2009

Yes, I will provide a zip file as every year. I will do this after the new
year's updates are completed (Joost is sending me constantly more input).

~ÔttÔ~



_____

From: retros-bounces at janko.at [mailto:retros-bounces at janko.at] On Behalf Of
peter.fayers at virgin.net
Sent: Sunday, January 04, 2009 12:56 PM
To: retros at janko.at
Subject: [Retros] New Year's update to Retro Corner




I echo the thank for all your hard work in 2008.

Are we once again going to be able to download the entire site on a zip
file? I find this very useful for doing research into problems on my laptop
when I am unable to get online for any reason.

Many thanks,

Peter.



Jan 2, 2009 12:15:47 PM, retros at janko.at wrote:


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Today's Topics:

1. Re: StrateGems 45 (Jan-Mar 2009) (Joost de Heer)
2. This month we consider a pair of problems involving chess
pieces (no pawns) and polyominoes. (Mario Velucchi)
3. New Year's Update of the Retro Corner (Otto Janko)
4. Re: New Year's Update of the Retro Corner (andrew at anselan.com)
5. Probleemblad 4-2008 (oct-dec) (Joost de Heer)


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

Message: 1
Date: Thu, 01 Jan 2009 23:09:55 +0100
From: Joost de Heer <joost at sanguis.xs4all.nl>
Subject: Re: [Retros] StrateGems 45 (Jan-Mar 2009)
To: The Retrograde Analysis Mailing List <retros at janko.at>
Message-ID: <495D3F33.2050102 at sanguis.xs4all.nl>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Joost de Heer schreef:

> R0140v - Ryan McCracken

> Dedicated to Paul Raican

> 8/8/8/8/8/8/3r4/B2r4 (1+2)

> Add wK, bK, 4 wP, 4 bP for a (6+7) IC


Typing error. This should be 'add wK, bK, 4wP, 2bP for a (6+5) IC'.


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

Message: 2
Date: Fri, 2 Jan 2009 01:11:10 +0100
From: "Mario Velucchi" <mvalg at velucchi.it>
Subject: [Retros] This month we consider a pair of problems involving
chess pieces (no pawns) and polyominoes.
To: retros at janko.at, itaprob at velucchi.it
Message-ID:
<29b3a48a0901011611q5a28c200gef24855607554ba5 at mail.gmail.com>
Content-Type: text/plain; charset="windows-1252"

*This month we consider a pair of problems involving chess pieces (no pawns)
and polyominoes.
*
http://www.stetson.edu/~efriedma/mathmagic/

--
best .marioV

--
Mario Velucchi
via Emlia, 106
I-56121 Pisa ? ITALY

mvalg at velucchi.it http://www.velucchi.it
phone +39.3487366652 +39.050502400 _ fax
+39.06233238786 +39.05061431159
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Message: 3
Date: Fri, 2 Jan 2009 10:20:48 +0100
From: "Otto Janko" <otto at janko.at>
Subject: [Retros] New Year's Update of the Retro Corner
To: "Retros" <retros at janko.at>
Message-ID: <A0E13037B7CF414EA12A74334D7FD023 at ww300.siemens.net>
Content-Type: text/plain; charset="us-ascii"

Dear Retro Friend,

I'm pleased to inform you about the New Year's update of the Retro Corner:

A) Recent Retro Problems:

Die Schwalbe, No. 233, October 2008
Die Schwalbe, No. 234, December 2008
Probleemblad, Jul-Sep 2008
StrateGems, No. 44, Oct-Dec 2008
The Problemist, September 2008
The Problemist, November 2008
StrateGems, No. 45, Jan-Mar 2009

B) Older Retro Problems:

Probleemblad, Jan-Feb 2005 (incl. solutions)
Probleemblad, Mar-Apr 2005 (incl. solutions)
Probleemblad, May-Jun 2005 (incl. solutions)
Probleemblad, Jul-Aug 2005 (incl. solutions)
Probleemblad, Sep-Oct 2005 (incl. solutions)
Probleemblad, Nov-Dec 2005 (incl. solutions)
Probleemblad, Jan-Feb 2006
Probleemblad, Mar-Apr 2006
Probleemblad, May-Jun 2006
Probleemblad, Jul-Aug 2006
The Problemist, May 2004
The Problemist, July 2004
The Problemist, September 2004
The Problemist, November 2004

C) Solutions added:

StrateGems, No. 43, Jul-Sep 2008

Many thanks to Joost who provided almost all promblems (mostly on the Retro
Mailing List).

Best Regards,

- Otto Janko [mailto:otto at janko.at] [http://www.janko.at]
-- Those who desire to give up freedom in order to gain security,
- will not have, nor do they deserve, either one. [Benjamin Franklin]



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

Message: 4
Date: Fri, 2 Jan 2009 09:30:20 +0000
From: andrew at anselan.com
Subject: Re: [Retros] New Year's Update of the Retro Corner
To: "The Retrograde Analysis Mailing List" <retros at janko.at>
Message-ID:
<1544618375-1230888592-cardhu_decombobulator_blackberry.rim.net-1033594625-@
bxe087.bisx.produk.on.blackberry>

Content-Type: text/plain; charset="Windows-1252"

Can I take this opportunity to give a big New Year thank you to Otto and
Joost for all their work maintaining and extending our site. It is truly
appreciated. Cheers Andy
------Original Message------
From: Otto Janko
Sender: retros-bounces at janko.at
To: Retros
ReplyTo: The Retrograde Analysis Mailing List
Subject: [Retros] New Year's Update of the Retro Corner
Sent: 2 Jan 2009 11:20 AM

Dear Retro Friend,

I'm pleased to inform you about the New Year's update of the Retro Corner:

A) Recent Retro Problems:

Die Schwalbe, No. 233, October 2008
Die Schwalbe, No. 234, December 2008
Probleemblad, Jul-Sep 2008
StrateGems, No. 44, Oct-Dec 2008
The Problemist, September 2008
The Problemist, November 2008
StrateGems, No. 45, Jan-Mar 2009

B) Older Retro Problems:

Probleemblad, Jan-Feb 2005 (incl. solutions)
Probleemblad, Mar-Apr 2005 (incl. solutions)
Probleemblad, May-Jun 2005 (incl. solutions)
Probleemblad, Jul-Aug 2005 (incl. solutions)
Probleemblad, Sep-Oct 2005 (incl. solutions)
Probleemblad, Nov-Dec 2005 (incl. solutions)
Probleemblad, Jan-Feb 2006
Probleemblad, Mar-Apr 2006
Probleemblad, May-Jun 2006
Probleemblad, Jul-Aug 2006
The Problemist, May 2004
The Problemist, July 2004
The Problemist, September 2004
The Problemist, November 2004

C) Solutions added:

StrateGems, No. 43, Jul-Sep 2008

Many thanks to Joost who provided almost all promblems (mostly on the Retro
Mailing List).

Best Regards,

- Otto Janko [mailto:otto at janko.at] [http://www.janko.at]
-- Those who desire to give up freedom in order to gain security,
- will not have, nor do they deserve, either one. [Benjamin Franklin]

_______________________________________________
Retros mailing list
Retros at janko.at
http://www.pairlist.net/mailman/listinfo/retros


Sent from my BlackBerry? wireless device

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

Message: 5
Date: Fri, 02 Jan 2009 15:55:25 +0100
From: Joost de Heer <joost at sanguis.xs4all.nl>
Subject: [Retros] Probleemblad 4-2008 (oct-dec)
To: The Retrograde Analysis Mailing List <retros at janko.at>
Message-ID: <495E2ADD.2030209 at sanguis.xs4all.nl>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

R345 - Itamar Faybish
r1bqkbnr/2pppppp/P7/8/p7/4P3/1P1P1PPP/2B1K1NR (11+14)
Exact proofgame in 8.5 (C+) [Not a shortest proofgame!]

R346 - Nicolas Dupont
rn2kbn1/1p1pppp1/2R3p1/2pr4/5P2/1P6/1PPPPNP1/1NBQKR2 (14+13)
Proofgame in 17.5 (C+)

R347 - Silvio Baier
rnbqkbnr/1pB1pp1p/1Pp5/1RQ1R3/1K5P/1PP1P3/B1P2P1P/1N4N1 (16+13)
Proofgame in 25.0 (C+)

R348 - Harry Goldsteen
8/8/p7/PPPp4/krpP4/NNKPPP2/1p2rp1P/BRqqb3 (13+11)
Mate? (Is the position legal? If so, what was the last move?)

Solutions 2008-2

R336 - Eyjolfsson
1. Nf3 Nc6 2. Ne5 Nd4 3. Nc6 Nxe2 4. Nb8 Ng1 5. Bd3 b6 6. Bxh7 Ba6 7.
Be4 Rh6 8. Bb7 Rc6 9. Nc3 e6 10. Nd5 Ba3 11. Ne7 Nf6 12. Ng8 Qe7 13.
bxa3 Kd8 14. Bb2 Ne8 15. Bf6 Bf1 16. Bh4 f6 17. Bc8 Qf7
Belfort-theme

R337 - Lois, Osorio
1. e4 c5 2. Qf3 Nc6 3. Qf6 gxf6 4. Ke2 Bh6 5. Kf3 Bxd2 6. Be2 Ba5 7. Bf4
Kf8 8. Bb8 Kg7 9. Kf4 Qf8 10. Nf3 Bd8 11. Rd1 b6 12. Rd6 Ba6 13. Nbd2
Bc4 14. Re1 Be6 15. Bd1 Bf5 16. exf5 exd6 17. Re8 Be7 18. Rc8 Qd8 19.
Rc7 Bf8
The black queen and bishop exchange places twice.

*R338 - Grudzinski, Tippmann
Intention: 1. h4 g5 2. hg5 e6 3. Rh7 Ba3 4. Rf7 Bb4[+a3] 5. Rd7 Be7[+b4]
6. Rc7 Qd4 7. Rb7 Qc3[+d4] 8. Ra7 Qg3[+c3] 9. Ra6 Qg5[+g3] 10. Re6[+a6]
Qf4[+g5] 11. Rh6 Qe3[+f4] 12. Rh4 Ba6 13. Rh2[+h4] gh4 14. Rh1[+h2] Qe6[+e3]

Cooked by Eddy van Beers: 1. e3 e6 2. Qh5 Qh4 3. Qh7 f5 4. Qf5 d5 5. Qd5
Qg3[+h4] 6. Qb7 Qf4[+g3] 7. Qa7 Qb4[+f4] 8. Qc7 Qa3[+b4] 9. Qg7 Qc3[+a3]
10. Qf6 Qd4[+c3] 11. Qe6 Be7 12. Qc4 Ba6 13. Qe2 Qe3[+d4] 14. Qd1[+e2]
Qe6[+e3]

*R339 - Crisan, Raican
a) Retract -1. Ra1*Pa7 Kb5*Rc5[+Ra1,-Sa1] and 1. Ka4 Ra5#
b) Retract -1. Qd1*Pd7 Kd4*Qc5[+Qd1,-Bd1] and 1. Kd3 Qd4#

a) is cooked: -1. Qa6/Qb8*Pa7 Kd5-c5 and 1. e4 Qd6#

R340 - Wenda
-1. Kf3xBg2[+Ke1]! Qc8-f8 -2. Rh4-h7 Bf1-g2 -3. g7-g8=B Bg2-f1 -4. g6-g7
Bf1-g2 -5. g5-g6 Bg2-f1 -6. g4-g5 Bf1-g2 -7. g2-g4 and 1. Bxh2[+Bc1]#
It might be for the first time that one sees a white retro-Excelsior
with underpromotion in a defensive retractor (Author).

[And one helpmate with minimal retro content:]
H815 - Vladislav Nefyedov
5r2/5p2/2p1pP2/s1p1prp1/4k3/4p1b1/4Ps2/4K2R (4+13)
h#3 (2.1;1.1;1.1)


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

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