[Retros] Add pieces

[Alain BROBECKER]

Dear retro friends,



With the birthday tourney of Thierry Le Gleuher, there

were new records in problems with "Add pieces" stipulation.

I was interested enough so as to start a compilation of

this kind of problems. After some thoughts the possible

categories seem to be:



* Type A : no king in check

  Type C : at least one king in check

  Type ? : the color of the piece to add is given

  Type ?? : the nature of the piece is given

* The number of pieces is given ("add N pieces")

  The number of pieces is not given ("complete the position"

  or "add the pieces", maybe no piece to add (joke?))

* For "add 1 piece" and "complete" (+1), nature of the piece

  to add (K/Q/R/B/N/P, promotion pieces...)

* Diagram with or without promoted men.



Here are the records has pointed out by Nikolai Beluhov on

the problem database, and some more.



Maximum number of pieces to add (9) for a legal position, Type C

or economy records for "complete the position" (+9) Type C

  Michel CAILLAUD

  Jubilé Thierry Le Gleuher-50, 2010, 2nd comm.

  3BRbBr/1pp5/4k1QK/p7/3pRqnr/1P2P3/2PP1PP1/1b6

  12+11: Add the missing pieces.



Economy records for "complete the position" (+6) Type C

  Dmitrij Baibikow (P1080647)

  503 Schachmatnaja komposizija 74 2006

  8/1PPPp3/BpQp2P1/r2p4/2k5/K2PP3/2R1P3/q1bb4

  11+9: Add pieces.



Record with coloring (?)

  Dmitrij Baibikow (P1080648)

  461 Schachmatnaja komposizija 68 2005, 1. Preis

  8/1P4P1/3N1N2/2RKB3/3Q1N2/Q1KN4/1P3RP1/8

  15+0: Color the pieces and add 17 pieces.

  

Add 1 piece, P, Type A

  Alain BROBECKER (P1189477)

  Jubilé Thierry Le Gleuher-50, 2010, 1st comm.

  8/1p5p/6pP/p4pPP/1k4pP/7p/KPP3P1/8

  8+8: Add one piece.



Add 1 piece, B, Type A

  Henrik Juel (P1000069)

  2nd Prize, Thema Danicum n°86, 1997

  4k3/ppp1pp2/4pp2/8/3P4/3P2P1/1PpP1PP1/2K5

  8+9: Add one unit. Last move?



Add 1 piece, K, Type C

  Nikolai Beluhov (or Andrey Frolkin?)

  problem database, 2011-3-6

  4k3/3P4/8/7B/8/8/8/8

  2+1: Add one piece! 



Add 1 piece, R, Type C

  Andrey Frolkin (P1189330)

  problem database, 2011/03

  6r1/8/8/4k3/8/8/7B/B5K1

  3+2: Add one piece.



Add 1 piece, N, Type C

  Alexander Yarosh (P1189060)

  532 Schachmatnaja komposizija n°79, p. 61, 2007

  8/1p1p4/8/1p6/p1p1p3/Rpp5/2K5/k7

  2+9: Add one piece.



Add 1 piece, P, Type ?

  Alain Brobecker

  2011/03

  8/8/8/8/8/5r1K/5k1R/8

  2+2: Add one white piece.

       (b) Add one black piece.





I'm quite willing to make a booklet with the results of the

hunt for such records. For the moment the categories to

include are unclear in my mind, except for

  "Complete the position" (+1) type A/C + nature

  "add 1 piece" type A/C + nature

  Economy records for "complete the position" (+N) type A/C

Which makes for at least (6+6+10)*2 problems to find.



Any comments (and new records! ;) are welcome.



Best regards, Alain

Alain Brobecker (abrobecker at yahoo.com) |_  _  _ |_
http://abrobecker.free.fr/             |_)(_|(_|| ) of  Arm's Tech