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3 problem(s) found in 875 milliseconds (displaying 3 problem(s)). [A='Seret' and FIRSTNAME='Jean_Luc']

1 - P0003940
Jean Luc Seret
Jean-Michel Trillon

diagrammes 51 05-06/1981
4. Lob
P0003940
(3+4)
#2 (RV)
Pièces rétro-volages
a) 1. Le3+ Lc5 2. Lxc5
b) 1. Lxa3 b6 2. Da4
play all play one stop play next play all
TT
null: Two retro-variants.
(a) Ba8 appeared by wPa7-a8=bB and Pb7 is volage (original).
Thus, 1.Bxa3? is a stalemate: b7-b6=wP?? would be an illegal
autocheck!
(b) Ba8 came via b7 and, thus, Pb7 is orthodox (recolored
from a wP). (2008-6-17)
comment
Keywords: Retro-volages, Partial Retro Analysis (PRA)
Genre: Retro
Input: Gerd Wilts, 1995-6-3
2 - P1011614
Jean Luc Seret
Jean-Michel Trillon

2613 Europe Echecs 07/1978
P1011614
(12+6) cooked
r#9
* 1. ... Lg8 2. Se7 Lh7 3. Sxg6 Lxg6#
1. a3! Lg8 2. a4 Lh7 3. a5 Lg8 4. a6 Lh7 5. a7 Lg8 6. a8=T Lh7 7. T8a2 Lg8 8. Se7 Lh7 9. Sxg6 Lxg6#
2. Sd6? Lh7 3. Sxf7 Lg8 4. Ka2+ Kc2 5. Sxe3#
play all play one stop play next play all
Cook: Kurzlösungen:
1. Lf2! Kd2 2. Lg1 Kd1 3. Lxe3 Lg8 4. Se7 Lh7 5. Sxg6 Lxg6#
1. ... Lg8 2. Lg1 Kd2 3. Lxe3+ Kd1 4. Se7 Lh7 5. Sxg6 Lxg6#
1. ... exf2? 2. Se7 Lg8 3. Sxg8 Kd2 4. Se1 fxe1=D,T#
1. Se7! Lg8 2. Lf2 Kd2 3. Lg1 Kd1 4. Lxe3 Lh7 5. Sxg6 Lxg6#
2. ... exf2? 3. Sxg8 Kd2 4. Se1 fxe1=D,T#
(Anton Baumann)
Compare 2808 by same composers. Excelsior by WPa2 to lose a move
Keyword=Excelsior
Keyword=Tempo Play
more ...
comment
Keywords: Excelsior, under-promotion (T)
Genre: r#
Input: Paul Valois, 2001-8-15
Last update: Alfred Pfeiffer, 2019-4-2 more...
3 - P1011615
Jean Luc Seret
Jean-Michel Trillon

2808 Europe Echecs 04/1980
P1011615
(9+8)
R#9
1.a4? Lg6! Key 1.a3 ... 6.a8=T Lh7 7.T8a2 Lg8 8.Lxf5 Lh7 9.Se2
play all play one stop play next play all
Excelsior to save a tempo. Same composers' 2613 (EE, 1978) is preferable
Keyword=Excelsior
Keyword=Tempo Play
comment

Genre: r#
Input: Paul Valois, 2001-8-15
Last update: Paul Valois, 2001-8-15 more...
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The problems of this query have been registered by the following contributors:

Gerd Wilts (1)
Paul Valois (2)