[Retros] Thema Danicum retros

[Henrik Juel]

Here are solutions and originals from retro columns in the recent
issues of Thema Danicum. Original retros for this magazine are most 
welcome and may be sent to me at hj at imm.dtu.dk


Solutions for retros from Thema Danicum 106, April 2002:

8727 (Donati)
The last captures were c6xPb7, d7xBc6, d2xRc3, h7xRg6, g7xBh6, and 
e2xBd3.

8728 (de Heer)
1.d4 Nf6 2.d5 Nh5 3.d6 exd6 4.c4 Qh4 5.c5 dxc5 6.e4 Bd6 7.Ne2 Bg3
8.Qd6 cxd6 9.e5 dxe5.


Solutions for retros from Thema Danicum 107, July 2002:

8796 (Donati)
1.d3 a5 2.Bd2 Ra6 3.Bb4 axb4 4.a3 b3 5.Ra2 bxa2 6.h4 axb1=N 7.Rh3 Nd2
8.Re3 Nf3+ 9.exf3 Rf6 10.Re2 c6 11.Rd2 Qc7 12.Qe2 Qf4 13.Rd1 d6 
14.Ra1 Kd7 15.Qd1 Ke6 16.Ne2 Kf5 17.Nc3 e6 18.Nb1.

8797 (Volet)
-1.Ra5 a3 -2.Qa2 Qb2 -3.Qa1 Qa2 -4.Rb2 Qc3 -5.Qa2 Qb4 -6.Rc3 Bb2 
-7.Kd7 Ba1 -8.Qb2 Qa4 -9.Qc1 Qb4 -10.Rb2 Qc3 -11.Ra2 Qb2 -12.Qh1 Qc1 
-13.Kc7 Qg1 -14.Kb6 Q=g2 -15.f4xP g3 -16.Qg1 h4xB -17.Bh2 Bb2 
-18.g3xN Nd3 -19.Qf1 Nb4 -20.Ra4 Bc1 -21.Ka5 c7 etc.

8798 (Caillaud)
1.f3 Nc6 2.Kf2 Nd4 3.Kg3 Nxe2+ 4.Kg4 Nc3 5.dxc3 g6 6.Be3 Bh6! 7.Bb6 axb6 
8.Qd4 Ra3 9.Qg7 Rb3 10.axb3 Be3 11.Ra8 Bc5 12.Ba6 bxa6 13.Ne2 Bb7 
14.Rd1 Be4 15.Rd6 Bd3 16.Rf6 exf6 17.cxd3 Bf8.


Retro problems from Thema Danicum 107, July 2002:

1nb2bnr/1p3ppp/2pppr2/5k2/5q1P/P2P1P2/1PP2PP1/RN1QKB2 (13+15)

. n b . . b n r    Gianni Donati
. + . . . + + +    8796 TD 107
. . + + + r . . 
. . . . . k . . 
. . . . . q . o 
o . . o . o . . 
. o o . . o o . 
R N . Q K B . .    Proof game in 17.5

4K3/1p3pp1/B1pP4/1NrpP3/2k5/RRP4P/pQPPPP2/qNb5 (15+10)

. . . . K . . .    Thomas Volet
. + . . . + + .    8797 TD 107
B . + o . . . . 
. N r + o . . . 
. . k . . . . . 
R R o . . . . o 
+ Q o o o o . . 
q N b . . . . .    Release the position

R2qkbnr/2pp1pQp/pp3pp1/8/6K1/1PPP1P2/1P2N1PP/1N6 (12+13)

R . . q k b n r    Michel Caillaud
. . + + . + Q +    8798 TD 107
+ + . . . + + . 
. . . . . . . . 
. . . . . . K . 
. o o o . o . . 
. o . . N . o o 
. N . . . . . .    Proof game in 17.0


Retro problems from Thema Danicum 108, October 2002:
(these were already posted by Joost on 24 Oct. 02)
8870 by Grevlund is cooked; the author corrects by replacing wQd8 by
a wR on d8.

2NQk3/r7/2P1RK2/B7/8/8/2P5/8 (7+2)

. . N Q k . . .    Per Grevlund
r . . . . . . .    8870 TD 108
. . o . R K . . 
B . . . . . . . 
. . . . . . . . 
. . . . . . . . 
. . o . . . . . 
. . . . . . . .    Monochrome. Last 2.0 moves?

bBBbBbKB/B6B/7B/7B/B6b/b6b/1k4b1/2bbbB2 (11+11)

b B B b B b K B    Henrik Juel
B . . . . . . B    Dedicated to Jan Mortensen
. . . . . . . B    8871 TD 108
. . . . . . . B 
B . . . . . . b 
b . . . . . . b 
. k . . . . b . 
. . b b b B . .    White and Black retract, then H#1

rnbqk2r/1ppp1pp1/4p2n/7K/p1P3P1/5P2/PP1PP3/R2Q4 (10+14)

r n b q k . . r    Ivan & Gligor Denkovski
. + + + . + + .    8872 TD 108
. . . . + . . n    
. . . . . . . K 
+ . o . . . o . 
. . . . . o . . 
o o . o o . . .    C+
R . . Q . . . .    Proof game in 13.0

q2nK1b1/ppp5/1P2pp1n/2N1b2p/4P1rP/3r2p1/P1P1PPP1/QRB1kBN1 (15+15)

q . . n K . b .    Unto Heinonen
+ + + . . . . .    8873 TD 108
. o . . + + . n 
. . N . b . . + 
. . . . o . r o 
. . . r . . + . 
o . o . o o o . 
Q R B . k B N .    Proof game in 28.0


Retro problems from Thema Danicum 109, January 2003:

R6k/7p/8/8/5p2/8/1p4PP/r6K (4+5)

R . . . . . . k    Wolfgang Dittmann
. . . . . . . +    8983 TD 109
. . . . . . . .
. . . . . . . . 
. . . . . + . . 
. . . . . . . . 
. + . . . . o o    Anticirce Cheylan 
r . . . . . . K    Proca retractor, retract 2.5 moves, then #1

1nbq1bnr/1pp1k1p1/1p3p2/8/5PrP/4BK1N/PPPNP3/R2Q1B1R (14+13)

. n b q . b n r    Michel Caillaud
. + + . k . + .    8984 TD 109
. + . . . + . . 
. . . . . . . . 
. . . . . o r o 
. . . . B K . N 
o o o N o . . .    C+
R . . Q . B . R    Proof game in 13.5, 1.1;1.1;1.1;1.2;1..

1krqnrn1/ppp1p1pp/5p1P/5b2/8/2P5/PP1PPPP1/RN1KQBNR (15+14)

. k r q n r n .    Gligor Denkovski
+ + + . + . + +    8985 TD 109
. . . . . + . o 
. . . . . b . . 
. . . . . . . . 
. . o . . . . . 
o o . o o o o .    C+ 
R N . K Q B N R    Proof game in 18.0


Henrik
--
Henrik Juel. Informatics and Mathematical Modelling, Building 321,
Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark.
http://www.imm.dtu.dk/~hj  Phone +45 4525 3391  Fax +45 4593 2373