Die Schwalbe

2 problem(s) found in 2325 milliseconds (displaying 2 problem(s)). [COMMENTDATE>=20220810 AND G='Retro' AND K='Zwillingsfigur'] [download as LaTeX]

1 - P1340215
Roberto Osorio
Jorge Joaquin Lois

R470 The Problemist vol.24-8, p. 341, 03/2014
after Satoshi Hashimoto
The Problemist 2013-2014
PG in 18.5
1. d3 g5 2. Lxg5 Lg7 3. Dd2 Lc3 4. Sxc3 c5 5. 0-0-0 Dc7 6. Sb1 Dg3 7. hxg3 h6 8. Txh6 b6 9. Te6 Th3 10. gxh3 Lb7 11. Lg2 Lf3 12. Sxf3 Sf6 13. Th1 Se4 14. Dd1 Sd2 15. Kxd2 fxe6 16. Ke1 Kf7 17. Lc1 Kf6 18. Sg1 Ke5 19. Lf1
play all play one stop play next play all
Judge's comment [Thomas Brand]: "This elegant proof game seems me original enough compared with Hashimoto's Probleemblad 1999, 3rd Prize, (PDB P1000642), even though the theme is not doubly set. The only missing white man is a Rook captured at e6, but Ra1 could not leave home."
Henrik Juel: The white plan is obvious, and Black ensures uniqueness by putting his men to be captured on squares, where White can go anyway, and by a late king's walk
This proof game is an enjoyable solving object showing that man can beat the computer; Euclide was still trying to find a strategy (a list of moves, possibly infeasible, that leads to the diagram position), when I had solved the problem and written the present lines...
You might call Pg3,h3 impostors also, as well as Th1 (2017-09-27)
Moldenhauer: Computerprüfung: C+ Natch 3.3 in 5 Std. 57 Min. nur obige Lösung
BP in 17.5 keine Lösung. (2022-09-05)
more ...
Keywords: Unique Proof Game, Impostor (TPP), Switchback (SLDKLS), Cross-capture (gh)
Genre: Retro
FEN: rn6/p2pp3/1p2p3/2p1k3/8/3P2PP/PPP1PP2/1NBQKBNR
Reprints: R470 The Problemist vol.25-8, p. 347, 03/2016
Input: A.Buchanan, 2017-09-27
Last update: Alfred Pfeiffer, 2019-06-03 more...
2 - P1404948
Anirudh Daga
18941 Die Schwalbe 314 04/2022
Beweispartie in 6,5 Zügen
b) +sBc7
c) d7->c7
a) 1. d4 e5 2. dxe5 Ld6 3. exd6 Dg5 4. dxc7 Dxc1 5. cxb8=L Dxb1 6. Lf4 Dc1 7. Lxc1
b) 1. Sf3 e5 2. Sxe5 Sc6 3. Sxc6 Lb4 4. Sxd8 Lxd2+ 5. Sxd2 Kxd8 6. Sf3 Ke8 7. Sg1
c) 1. Sc3 d5 2. Sxd5 Sd7 3. Sxe7 Sdf6 4. Sxg8 Dxd2+ 5. Dxd2 Ld6 6. Dxd6 Sxg8 7. Dd1
play all play one stop play next play all
Singapur, 13 Jahre alt, mit Andrew Buchanan und James Quah: https://www.thehoppermagazine.com
Keyword not uniquely identified: s in c)
Henrik Juel: C++ Euclide 1.01 (2022-11-05)
Henrik Juel: Good proof games, Anirudh (2022-11-05)
Keywords: Homebase (2), Pronkin Theme (L,,), Switchback (,,D), Impostor (,S,)
Genre: Retro
FEN: r1b1k1nr/pp1p1ppp/8/8/8/8/PPP1PPPP/R1BQKBNR
Input: Stefan Höning, 2022-10-07
Last update: A.Buchanan, 2022-11-05 more...
Show statistic for complete result. Show search result faster by using ids.


The problems of this query have been registered by the following contributors:

A.Buchanan (1)
Stefan Höning (1)