paul: Checked for the first 19 moves, by Euclide. (2011-07-01)
Moldenhauer: Computerprüfung: C+ Stelvio 1. Std. 16 Min.
Keine Lösung BP 24.0 (2023-02-06)
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paul: Démoli : 1.e4 d5 2.e5 d4 3.d3 Dd5 4.Dh5 D×e5+ 5.Rb4 D×h2 6.D×h7 Rd7 7.D×h8 Re6 8.Dh3+ Re1 9.Rb5 Cd7 10.D×d7 R×f1 11.Dd8 Dh5+ 12.Re8 Dd1 13.f3 Re1. (2020-12-12)
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Henrik Juel: tiny typos: 9... Lg7+ and 19.Sge2 (2018-12-18, hidden)
Henrik Juel: Natch 3.1 found nothing in half an hour (2018-12-18, hidden)
Henrik Juel: I forgot to kill Natch and discovered later that the solution was found (2018-12-18, hidden)
Moldenhauer: Computerprüfung: C+ Stelvio 1.11 04:24:38 Stunden. (hh:mm:ss)
Keine Lösung: BP 19.0, BP 19.5.
Notationsfehler: richtig 19.Sge2 (2023-03-24, hidden) more ...
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paul: 1. e3 a5 2. Qh5 a4 3. Qa5 h5 4. Ke2 Rh6 5. Kd3 Re6 6. Kc4 Re4+ 7. Kb5 e6 8. h4 Ke7 9. Rh3 Kf6 10. Rg3 Kf5 11. Rg6 Qf6 12. Rh6 c6+ 13. Kb6+ Kg4 14. Kc7 Qf3 15. Kd8 Qd1 16. f3+ Kg3 17. Ke8 Kf2 18. Qd8 b6 19. g3 Ba6 20. Bh3 Bf1 21. d3 Ba3 22. Bd2 Ne7 23. Bb4 Ng6 24. Bf8 Ke1 25. b4 Bc1 26. Rh8. Belfort 1994 theme. (2013-08-12)
Moldenhauer: Computerprüfung: C+ Stelvio 1.0, 87 Sekunden.
Keine Lösung: BP 25.0 und BP 24.5. (2023-02-10)
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Henrik Juel: What is the joke, James?
Natch 3.1 found no solution (2020-08-26)
James Malcom: The solution has now been added in, Henrik.

This PG has two purposes.
1) It is another exploration of what themes be realized with the dummy pawn involves.
2) It is also to push the boundaries of how long a dummy pawn PG can be made. (2020-08-27)
Henrik Juel: Thanks, James
Apparently you also extended the proof game; the one I tested was in 10.5
The solution shows the Schnoebelen theme, by the way (2020-08-27)
Henrik Juel: You forgot to remove wPf2 from the diagram position (2020-08-27)
James Malcom: Removed, and yes I did manage to find a way to extend it by a ply, in theme for its purpose. The version is also C+. (2020-08-27)
A.Buchanan: I think sLb1 is kind of anti-Belfort Any way to replace it with a Phoenix/Prenix knight? (2020-08-27)
Henrik Juel: Strictly speaking, this is not Belfort, which requires two units to stand away
As Andrew suggests, if sLb1 were a black knight, we would have Belfort (2020-08-27)
A.Buchanan: It's limiting to just talk about Belfort Theme - one historical tourney which had a fiddly constraint about the number of pieces exhibiting the property. Want really to talk more generally about Belfort *Effect*, which is a property of a single unit (2022-01-26)
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James Malcom: The point of this PG was to make a true Belfort, after the lone bishop in P1379376 was pointed out to not be a true Belfort. (2020-10-28)
A.Buchanan: Belfort is not in the Encyclopedia! (2020-10-30)
Henrik Juel: For some reason, the diagram is completely wrong
The animation works fine, though (2020-10-28, hidden)
James Malcom: Thanks for fixing the diagram, Mario. (2020-10-28, hidden)
A.Buchanan: A lone bishop can be a Belfort piece. A random tourney at Belfort a long time ago sloppily said that one needed two Belfort units with no other constraints (e.g. avoiding pieces on the wrong piece squares, which is utterly essential for the theme). We can tidy up the definition properly and I think that one Belfort piece could be enough. Why stick with the chaos of the past? (2020-10-29, hidden)
A.Buchanan: I think the notion of a Belfort piece is the foundation idea. Then the question of whether a composition is a Belfort is derived from that, and should include other criteria as well. The original tourney succeeded in launching this idea, but we are surely allowed to clean up the position definition. I will check in the Encyclopedia (2020-10-30, hidden) more ...
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Henrik Juel: Nice tempo maneuver
The Belfort theme requires at least two odd men, but here we only have Sg1 (2022-02-07)
A.Buchanan: Thanks Henrik - this is surely the best forum in the world to discuss whether "Eine Schwalbe macht noch keinen Sommer!" The metaphor of a Belfort piece as a North-South migrated bird is lovely too. The originating tourney at Belfort, which gave its name to the theme, understandably excluded the case of a single swallow. But do we want to persist with this or generalize? I am charmed by the little birds into changing my mind on this. Eine Schwalbe macht noch keinen Sommer! Stimmt!
See also P1037660. (2022-02-08)
Henrik Juel: C+ Popeye 4.61 (2022-02-07, hidden)
A.Buchanan: Thanks Henrik - this is surely the best place in the world to discuss whether "Eine Schwalbe macht noch keinen Sommer!" The metaphor of a Belfort piece as a North-South migrated bird is lovely too. The original tourney at Belfort, which gave its name to the theme, understandably excluded the case of a single swallow. But do we want to persist with this fussiness into the long-term? We get to choose. It's not enough to woodenly insist on history. But I am charmed by the little birds into changing my mind on this. Eine Schwalbe macht noch keinen Sommer! Stimmt! (2022-02-08, hidden) more ...
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Michel Caillaud: previously published : 46th-51st Place, 10th WCCT 2016-17 (2023-01-06)
Henrik Juel: a rare typo: row 2 should probably be 1PP2PP1 (2023-01-05, hidden)
Henrik Juel: C+ Euclide 1.01 (2023-01-05, hidden)
Henrik Juel: in other words: the diagram is missing wPc2 (12+13) (2023-01-05, hidden) more ...
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