[Retros] Add units, 20th update

CAILLAUDM at aol.com CAILLAUDM at aol.com
Mon Jul 18 18:44:46 EDT 2011



Hello Mu-Tsun,

A reason not to include everything is perhaps to avoid explosion of records
and lot of work more for Alain.
For example, for 2A category a lot of "sub-records" can be defined : 2KKA,
2KQA, 2KRA,...

Anyway, if some are interested I can give here my versions (though 4A and
5A are rather stonesteps to 6A than anything else).

3A
8/P1P5/1QPB4/3P4/PP2R3/k7/N1PP4/K7

4A
8/P4pp1/PB6/BPB5/k1K5/B1R5/2PP4/Q7

5A
8/pp1p1ppp/8/K2P4/1PkP4/Q1B1Q3/P3P3/2Q1B3

PS : congratulations for the most striking find of the serie (Rd1 in 1RA)!

Best,
Michel

Dans un e-mail daté du 18/07/2011 03:52:47 Paris, Madrid (heure d'été),
tsai39 at illinois.edu a écrit :


> Michel also gave 3A, 4A, 5A problems but i'm not sure i'll include them.

> Maybe it's best to keep only "add 1", "add 2" and "add max" problems.

> Note that 5A & 6A (or 9C and 12C) are not in the same category since 5A

> has

> no promoted piece.


Personally I don't see any reason not to include everything. Certainly
people will be interested in "how many units is needed for forcing a
particular number of units to be added" that kind of thing. So I'll
encourage you to keep tracking the records for all the entries in the
table.

Mu-Tsun

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