Die Schwalbe

9 problem(s) found in 6811 milliseconds (displaying 9 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND NOT K='Konstruktionsaufgabe' AND S='chessproblem.net'] [download as LaTeX]

1 - P1312964
Michel Caillaud
chessproblem.net 26/11/2015
1st-2nd Prize e.a
1st chessproblem.net Composing Tournament
P1312964
(10+13)
What were the promotion moves?
R: 1. Db1-d1 Ta8-d8 2. Db8-b1 Ta1-a8 3. Dc8-b8 a2-a1=T 4. Db8-c8 a3-a2 5. Dc8-b8 a4-a3 6. Db8-c8 a5-a4 7. b7-b8=D a7-a5 8. a6xSb7 Sc5-b7 9. a5-a6 Se4-c5 10. a4-a5 Sg5-e4 11. a3-a4 Sh3-g5 12. a2-a3 Sg1-h3 13. Tf1-f2 Lf2-e1 14. Tb1-f1 Le3-f2 15. Tf2-g2 Kg2-h1 16. Tf1-f2+ Kh3-g2 17. f2-f3 Sf3-g1 18. Tb8-b1 Sd4-f3 19. b7-b8=T Sb3-d4 20. Tg1-f1 Sc1-b3 21. b6-b7 c2-c1=S 22. b5-b6 c3-c2 23. b4-b5 c4-c3 24. Th1-g1 b5xLc4 25. Ld5-c4 Kg4-h3 26. Lg2-d5 Lc5-e3 27. Lf1-g2 Kf4-g4 28. g2-g3+ Sg3-h5 29. Kh5-g6 Se4-g3+
play all play one stop play next play all
Henrik Juel: Composer’s solution:
a2-a1=R; n.b7-b8=Q a7-a5 n-1.a6×Nb7 Nc5(d6)-b7 n-2.a5-a6 Ne4-c5(d6) n-3.a4-a5 Ng5-e4 n-4.a3-a4 Nh3-g1 n-5.a2-a3 Ng1-h3 n-6.Rf2-f1 Bf2-e1 just in time. then b7-b8=R; c2-c1=N; b4-b5; b5×Bc4! (precisely; not b7×Bc6?? or b2-b3?? b3×Bc2).and Bf1-c4; g2-g3; Ng3-h5!; Bc8-g8; c7-c8=B! Five promotions: three white : b7-b8=Q, b7-b8=R and c7-c8=B and two black : a2-a1=R and c2-c1=N.
[The judge was Thomas Volet]
Judge’s comments: What is a judge to do with a composition containing so many features valued by that judge? Enjoy it, of course! An elegant arid setting (without obtrusive force or King in check) conceals the depth of the retroplay. The precise timing represents the best exploitation of the Kislyak theme. In addition to his ever-present clarity of logic, Michel often gives us much humor in his compositions. Naturally the Bg8 is not the one that started on f1! The slant pawn on h2 shows Michel’s long memory for tournament stipulations, and thankfully, spares the audience from inventory tedium that we all experience but are reluctant to acknowledge. A fun composition, and what more can be asked? (2015-12-04)
Henrik Juel: The stipulated theme was
Orthodox retroanalysis where the diagram position has at least one open (i.e., unoccupied) file
Here the a-,b-,c-files are open (2015-12-04)
Henrik Juel: Solution by Andrej Frolkin
Retract: -1.Qb1-d1 (any side can start the retraction; this is unessential here) Ra8-d8 -2.Qb8-b1 Ra1-a8 -3.Qc8-b8 a2-a1=R -4.Qb8-c8 a3-a2 -5.Qc8-b8 a4-a3 -6.Qb8-c8 a5-a4 -7.b7-b8=Q a7-a5 -8.a6xSb7 Sc5-b7 -9.a5-a6 Se4-c5 -10.a4-a5 Sg5-e4 -11.a3-a4 Sh3-g5 -12.a2-a3 Sg1-h3 -13.Rf1-f2 Bf2-e1 -14.Rb1-f1 Be3-f2 -15.Rf2-g2 Kg2-h1 -16.Rf1-f2+ Kh3-g2 -17.f2-f3 Sf3-g1 -18.Rb8-b1 Sd4-f3 -19.b7-b8=R Sb3-d4 -20.Rg1-f1 Sc1-b3 -21.b6-b7 c2-c1=S
-22.b5-b6 c3-c2 -23.b4-b5 c4-c3 -24.Rh1-g1 b5xBc4 25.Bd5-c4 Kg4-h3 -26.Bg2-d5 Bc5-e3 -27.Bf1-g2 Kf4-g4 -28.g2-g3+ Sg3-h5 -29.Kh5-g6 Se4-g3+; later, Bg8 to c8, c7-c8=B
. (2015-12-04)
James Malcom: Optimal PG: 1. Nc3 Nc6 2. Ne4 Nf6 3. Nd6+ cxd6 4. h4 Qa5 5. b4 Qg5 6. Bb2 Nh5 7. Be5 dxe5 8. Eb1 b5 9. Rb3 Bb7 10. Qa1 e6 11. Qd4 f6 12. Qf4 exf4 13. Rg3 fxg3 14. Nf3 Ne5 15. Nh2 Be4 16. c4 Bg6 17. c5 gxh2 18. c6 Bc5 19. Kd1 Ke7 20. hxg5 Raf8 21. c7 Be8 22. Kc2 Kd6 23. c8=B Rf7 24. Bb7 Re7 25. Be4 Nf7 26. Kd3 h6 27. Bh7 Bd4 28. Ke4 Ng3+ 29. Kf4 Ne4 30. Kg4 Ke5 31. Kh5 Kf4 32. Bg8 Rh7 33. g6 Bc5 34. gxh7 Ng3+ 35. Kg6 Nh5 36. g3+ Kg4 37. Bg2 Bd4 38. Bd5 Kh3 39. Bc4 bxc4 40. b5 c3 41. b6 c2 42. b7 c1=N 43. b8=R Nd3 44. Rf1 Ne1 45. Rb1 Nf3 46. Rbe1 Ng1 47. f3 Kg2 48. Rf2+ Kh1 49. Rg2 Bf2 50. Rf1 Be1 51. Rff2 Nh3 52. a3 Nhg5 53. a4 Ne4 54. a5 Nc5 55. a6 Nb7 56. axb7 a5 57. b8=Q a4 58. Qb1 a3 59. Qd1 a2 60. Qc2 a1=R 61. Qc1 Ra8 62. Qd1 Rd8 (2022-11-12)
comment
Keywords: Kislyak Theme
Genre: Retro
FEN: 3rb1B1/3prnpP/4ppKp/7n/8/5PP1/3PPRRp/3Qb2k
Reprints: Kislyak Theme: New Developments , p. 5, 2/12/2015
Input: A.Buchanan, 2015-12-04
Last update: James Malcom, 2022-11-11 more...
2 - P1378168

chessproblem.net 26/4/2008
P1378168
(7+4)
#2
Chess960
1. c8=T! ... 2. 0-0-0#! (wTc8->d1)
play all play one stop play next play all
Reprint+History Of The Idea-https://www.ecforum.org.uk/viewtopic.php?f=2&t=10857&p=246851#p246851
https://www.chessproblem.net/viewtopic.php?t=232

Created by the user mrmip

https://www.chessproblem.net/viewtopic.php?t=232

It still seems that there are castling loopholes in chess variants.

The rules for castling in Fischerrandom or 960-chess are:

" Castling, as in Orthodox chess, is an exceptional move involving both the King and Rook. Castling is a valid move under these circumstances:
Neither King nor Rook has moved.
The King is not in check before or after castling.
All squares between the castling King's initial and final squares (including the final square), and all of the squares between the castling Rook's initial and final squares (including the final square), must be vacant except for the King and Rook.
No square through which the King moves is under enemy attack.

The movement of the King and Rook during castling should be easily understood by players of Orthodox Chess:
When castling on the h-side (White's right side), the King ends on g1 (g8), and the rook on f1 (f8), just like the O-O move in Orthodox chess.
When castling on the a-side (White's left side), the King ends on c1 (c8), and the rook on d1 (d8), just like the O-O-O move in Orthodox chess.
Sometimes the King will not need to move; sometimes the Rook will not need to move. That's OK."

Now reading those rules as Devil reads the Bible the following seems possible:

(diagram)

Fischerrandom Chess, mate in 2. White king has not moved.
Solution 1.c8=R any 2.0-0-0 #

[White rook just moves to d1,all squares in the path c8-c1-d1 are free except for wK. The castling rook has not moved before ;)]
James Malcom: This is not Staugaard castling! It is another, far less known form of joke castling. I wrote about it here: https://www.ecforum.org.uk/viewtopic.php?t=10857

See also P1378161, P1378167, P1373226, P1378169, and P1378170 (2021-11-02)
comment
Keywords: Joke, Castling, Chess960, Promotion (T), Promotion key (T)
Genre: 2#, Fairies
FEN: 8/2P5/3N4/1p6/1P6/3k1p1r/1P3P2/2K1R3
Input: James Malcom, 2020-07-23
Last update: James Malcom, 2021-11-02 more...
3 - P1380124
Joaquim Crusats
chessproblem.net 1/1/2007
P1380124
(8+8) C+
#4
1. Df8! Sxc2+ 2. Lxc2+ Kxc2 3. Db4 Kd3 4. 0-0-0#
play all play one stop play next play all
https://www.chessproblem.net/viewtopic.php?f=7&t=60&p=2362

http://joaquimchessproblem.blogspot.com/2008/09/blog-post_40.html
Henrik Juel: But duals in short variations (2020-09-21)
James Malcom: So, Henrik? (2020-09-21)
more ...
comment
Keywords: Belen Theme, Castling as mating move
Genre: n#
Computer test: Gustav 4.1d, Brute Force
FEN: Q7/1R6/8/8/P1ppp3/n1p1p3/2P5/RBk1KbN1
Reprints: König & Turm 22, p. 14, 5/2007
Input: James Malcom, 2020-09-21
Last update: Alfred Pfeiffer, 2020-09-22 more...
4 - P1380129
Zalmen Kornin
harmonie 2006
P1380129
(4+3) C+
h#2*
* 1. ... 0-0-0#
1. Kc2! Sb1 2. Kc1 Sa3#
play all play one stop play next play all
more ...
comment
Keywords: Belen Theme (Anti-), Castling as mating move (Satz)
Genre: h#
Computer test: Popeye 4.83
FEN: 8/8/8/8/N1p5/2Nkp3/8/R3K3
Reprints: chessproblem.net 25/2007
(15) MatPlus.net Forum 22/9/2019
Input: James Malcom, 2020-09-21
Last update: Alfred Pfeiffer, 2020-09-22 more...
5 - P1380144
James Malcom
Zalmen Kornin

chessproblem.net 10/8/2019
P1380144
(12+9) C+
#5
1. Sc3+! Kc2 2. h8=L! e5 3. fxe6ep cxd4 4. Lxd4 Kd3 5. 0-0-0#
play all play one stop play next play all
https://www.chessproblem.net/viewtopic.php?f=7&t=1078&p=2344&hilit=belen#p2344

"Yes, a Valladao-Belen with a Bishop promotion, and the first to ever appear before the public !"

http://www.berlinthema.de/Auswahl_PH.pdf-"P.H.s (H48c) löste eine verstärkte Suche nach einer Darstellung mit der nun einzig noch feh- lenden Läuferumwandlung aus, und formell ist die (H48e) die Erstdarstellung. Allerdings sehen wir hier dieselbe gravierende thematische Schwäche wie in der (H48b), daß der Doppelschritt vor dem e.p.-Schlag nicht exklusiv ist und Schwarz ebenso den Einzelschritt spielen könnte – wodurch es zum gleichen Spiel kommt nur ohne den thematisch unabdingba- ren e.p.-Schlag."

http://matplus.net/start.php?px=1600576227&app=forum&act=posts&fid=xshown&tid=2367-"****...and the solution now is complete. Yes, You knew already, I'm sure: "habemus episcopus" - after Q, N and R, a promotion to Bishop in a published Valladao-Belen!"
James Malcom: The first Valladao-Belen with a bishop promotion. (2020-09-22)
comment
Keywords: Belen Theme, Valladao Task, Checking key, under-promotion (L), En passant, Castling as mating move
Genre: n#
FEN: 8/4p2P/3p4/pPpp1P2/B1pP1P2/Br3p2/1P3P2/RNk1K3
Reprints: H48e Der Reiz des Ungewöhnlichen
(1) MatPlus.net Forum Moremovers 10/8/2019
Input: James Malcom, 2020-09-22
Last update: Alfred Pfeiffer, 2020-09-22 more...
6 - P1380158
James Malcom
chessproblem.net 14/10/2019
P1380158
(7+8) C+
#3
1. b8=D? Lb3!

1. Lxa2+! Kc2 2. b8=D Kxd3 3. 0-0-0#
2. ... e2,~ 3. Db1#
1. ... Kb2 2. b8=D+ Kxa1 3. Db1#
2. ... Kxa3 3. Lb1#,Lxc4#
2. ... Kc2 3. Db1#
play all play one stop play next play all
https://www.chessproblem.net/viewtopic.php?f=7&t=60&p=2362
Henrik Juel: C+ Popeye 4.61, except for the mate dual after 2... Kxa3 (2020-09-22)
comment
Keywords: Belen Theme, Capture key, Checking key, Promotion, Castling as mating move
Genre: 3#
Computer test: Popeye 4.61
FEN: 8/1P6/8/8/2ppp3/P1pPp1n1/b7/RBk1K1N1
Input: James Malcom, 2020-09-22
Last update: James Malcom, 2020-09-23 more...
7 - P1380160
James Malcom
chessproblem.net 14/10/2019
nach György Paros
P1380160
(5+6) C+
h#3
1. Lc7+! Kxc7 2. Da6 Kd6 3. 0-0-0+ Sd7#
play all play one stop play next play all
See P0533854

https://www.chessproblem.net/viewtopic.php?f=7&t=60&p=2362
more ...
comment
Keywords: Belen Theme ("Reversed"), Checking key, Castling
Genre: h#
Computer test: popeye 4.85
FEN: rbK1k3/qp6/1p6/1PN5/8/8/4P3/2R5
Input: James Malcom, 2020-09-22
Last update: Alfred Pfeiffer, 2020-09-22 more...
8 - P1387686
James Malcom
chessproblem.net 16/10/2019
P1387686
(15+4) C+
ser-h-Rochade in 34
1. ... Kf8 2. Ke7 3. Kd8 4. Kc8 5. Kb8 6. Ka7 7. Ka6 8. Kb5 9. Kc5 10. Kxd5 11. Ke5 12. Kf5 13. Kxg4 14. Kf5 15. Ke4 16. Kd3 17. Kc2 18. Kxc1 19. Kc2 20. Kd3 21. Ke4 22. Kf5 23. Kg5 24. Kxh6 25. Kg5 26. h5 27. h4 28. hxg3 29. g2 30. g1=S 31. Se2 32. Sc3 33. Sxb1 34. Sd2 0-0-0
play all play one stop play next play all
https://www.chessproblem.net/viewtopic.php?t=1079
more ...
comment
Keywords: Seriesmover, Castling
Genre: Fairies
Computer test: popeye 4.85
FEN: 4N1k1/5B1p/2P1P2P/P2P4/6R1/p4pP1/P4P2/RNB1K3
Input: James Malcom, 2021-03-21
Last update: Arnold Beine, 2021-04-12 more...
9 - P1387688
James Malcom
chessproblem.net 16/10/2019
P1387688
(11+10) C+
h-Rochade in 14
1. ... a5 Lb2 2. La6 Lc1 3. Lc8 Lb2 4. Ld7 Lc1 5. Le8 Lb2 6. Lg6 Lc1 7. Lf5 Lb2 8. Lh3 Lc1 9. Lf1 Lb2 10. Le2 Lc1 11. Ld1 Lb2 12. Lc2 Lc1 13. Lxb1 Lb2 14. La2 0-0-0
play all play one stop play next play all
https://www.chessproblem.net/viewtopic.php?t=1079
James Malcom: C+ by Jacobi with the restraints that wKe1 & wRa1 do not move. Here is the code.

English fors 8/8/p1p1p3/1bP1P2p/p1p4P/PkPp1p2/3P1P2/RNB1K3
option FirstToMove black
stip a=b8 pie whi ke1 ra1 addpieces
constraints Ke1(0..0) Ra1(0..0)
stip h006 (2022-06-12)
James Malcom: Meant EnglishN, a command that allows for avoidance of FEN editing with knight usage. (2022-06-12)
A.Buchanan: Jacobi constraints operate under the principle that castling doesn't count as a move for king or rook. I guess one can disable castling rights separately if one wanted? (Not relevant for this problem.)
Cheeky nit: can one remove wPf2? (2022-06-13)
James Malcom: I suppose that might be possible.

And yes, let me check if it can be removed. (2022-06-13)
Joost de Heer: The constraint is for the 'sub-position' after 8 moves, not for the h006 stipulation. It's to avoid searching lines like '1. Ra2 2. Ra1' where castling rights were lost along the way.

Another method to test would be
stip a=b1 pie whi ke1 ra1 addpieces
[repeat 13 times]
stip h001 (2022-06-13)
Joost de Heer: WHich also proves that f2 can indeed be removed (C+ in less than a second) (2022-06-13)
A.Buchanan: Thanks Joost for clarifications.
And how about also removing h-file pawns and adding bPf5? (2022-06-13)
James Malcom: That is illegal Andrew, requiring one capture too many. Nor does it change the move amount. (2022-06-13)
Joost de Heer: Black needs 7 captures, and 7 white pieces missing, so -Pf2, -Ph4, -Ph5, +bPf5 seems to work (and is C+ with the '13 a to b stipulations' test. (2022-06-13)
James Malcom: Ah, did not see that. Economical improvements are always nice--thanks both. (2022-06-13)
Joost de Heer: wBc1 to b2 is of course a correct h0014.5. (2022-06-14)
James Malcom: True, but for a new length record, longer than a measly ply, an entirely different setting may be needed. (2022-06-14)
Olaf Jenkner: I think, it's cooked.
Black can lose a tempo between a6 and a8 or between e8 and g6. (2022-06-14)
James Malcom: How so, Olaf? With White to move and wBc1-b2, there is no tempo to lose. Any delay by Black only causes further delay. (2022-06-15)
Olaf Jenkner: You are right, it's not a matter of tempos. (2022-06-15)
James Malcom: As always happens, I came across a 1997 problem with the same idea, albeit being mostly unique: P1000693 (2022-06-29)
comment
Keywords: Castling (wg)
Genre: Fairies
Computer test: Jacobi v0.7.5
FEN: 8/8/p1p1p3/1bP1P2p/p1p4P/PkPp1p2/3P1P2/RNB1K3
Input: James Malcom, 2021-03-21
Last update: A.Buchanan, 2022-06-13 more...
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