[Retros] Retro solving in Messigny 2011

CAILLAUDM at aol.com CAILLAUDM at aol.com
Tue Jun 14 16:57:53 EDT 2011


Below are the problems submitted this year.

They belong to the Phenix 2011 tourney for original retros.
There were more PGs than classical retros, but more points for solving a
classical retro than for a PG...
There was some incident as I misprinted number of moves of 6 (7.0 instead
of 7.5) but this was soon detected (by Pascal Wassong) and corrected.

The 8 problems were to be solved in 2 hours.
Can you do better than the winner, Thierry Le Gleuher, who scored the
maximum (48 points; also the only one to do so) in 1h13'? (Thierry says he was
even quicker than that, but he took time to re-read carefully his redaction
before handing back his copy!).


1 :

PG a) 2.5 b) 5.0 (16+15) (2+3 points)

2 :
SPG 10.0 (12+15) (5 points)

3 :

SPG 10.0 (13+12) (5 points)

4 :

SPG 15.5 (15+12) (5 points)

5 :

SPG 16.5 (13+15) (5 points)

6 :

SPG 7.5 Duellists (15+14) (5 points)
Duellists (Echecs Duel, DuellantenSchach,...) : each side choses a duellist
and must play with this piece until he can no longer (capture, pining,
need to parry a check,...); then he can choose a new duellist.

7 :
Which captures are determined? (14+11) (9 points)

8 :
a) Add a piece on h8 then
b) What were white promotion moves?
c) Which captures are determined?
(10+13) (3+3+3 points)
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