Die Schwalbe

7 problem(s) found in 2623 milliseconds (displaying 7 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND K='Linienverstellung' AND NOT K='Schachschlüssel' AND K='Rückkehr'] [download as LaTeX]

1 - P1284430
Uwe Karbowiak
4026 Sächsische Zeitung 05/04/2014
P1284430
(6+11)
#11
1. Sb6+? Kb5 2. Sd7+ Kc4 3. Se5+ Sxe5!
1. Tb4+? Ka5 2. Tf5 e5,e6 3. Tf7? Lxb4!
1. Tb4+? Ka5 2. Txe7? Lxe7+!

1. Tb4+! Ka5 2. Tf5 e6 3. Tb6+ Ka4 4. Tf7 Le7+ 5. Txe7 Sxe7 6. Tb4+ Ka5 7. Tb7+ Ka4 8. Sb6+ Kb5 9. Sd7+ Kc4 10. Se5+ Kc5 11. Lb4#
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Versuchen wir uns in diese „geradlinige, logische Mattführung“ (S.Borchardt, Radeberg) hinein zu vertiefen: Der Hauptplan 1.Sb6+? Kb5 2.Sd7+ Kc4 3.Se5+ scheitert an 3...S:e5! und 1.Tf5? ist zu langsam, während zuerst 1.Tb4+? Ka5 2.Tf5 e5,e6 3.Tf7? L:b4! erlaubt. Natürlich geht auch 1.Tb4+? Ka5 2.T:e7? wegen 2...L:e7+! nicht. Deshalb 1.Tb4+! Ka5 2.Tf5 (3.T:d5+ Ka6 4.Tb6 matt) e6 (nicht 2...e5? 3.Tb7+ Lb4 4.L:b4+ Ka4 5.Tf6 b2 6.Ld2 nebst 7.Ta6 matt) 3.Tb6+ Ka4 und nun droht nach der Rückkehr 4.Tf7 sofort 5.Ta7 matt, und mit 4...Le7+ 5.T:e7 S:e7 wird der Sg6 weggelenkt, wonach das Rückpendel 6.Tb4+ Ka5 7.Tb7+ Ka4 den Hauptplan 8.Sb6+ Kb5 9.Sd7+ Kc4 (9...Kc6? 10.Tb6, 9...Ka4,Ka6 10.Sc5) 10.Se5+ Kc5 11.Lb4 matt erlaubt (4 Punkte) . „Wieder eine tolle neudeutsch-logische Aufgabe mit Turmpendel, Switchback, einer Kombination aus Linienöffnungen und -verstellungen, Turmopfer, Abzugs- und Gegenschach und einem schönen Mustermatt!“ lobte J.Schottenhamel (Ebersbach)
Anton Baumann: C+ Gustav 4.1d (2021-11-19)
comment
Keywords: Pendulum, Switchback, Line opening, Line closing, Discovered check, Gegenschach, Model mate
Genre: n#
FEN: 2NK1b2/1R2pR2/6n1/3p2p1/k7/rp2P3/3Bp1p1/6q1
Input: Felber, Volker, 2014-04-07
Last update: Felber, Volker, 2014-07-26 more...
2 - P1338691
Zlatko Mihajloski
H4045 The Problemist 26-3, p. 105, 05/2017
P1338691
(2+12)
h#5
1. Lb2 Tg4 2. Df8 Kg3 3. Kb4 Kf4 4. Kc3 Ke5 5. Db4 Tg3#
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SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-05-25)
comment
Keywords: Switchback (d,T), Klasinc theme (T-K, d-k), Model mate, Unpinning, Remote selfblock, Line closing, Selfblock, Model mate, Minimal (T)
Genre: h#
FEN: 8/5p2/8/kb2b3/pqp4r/6Rp/2pp1p1K/8
Reprints: zu 917A mpk-Blätter 129 07/2020
Input: A.Buchanan, 2017-09-04
Last update: Gunter Jordan, 2021-05-24 more...
3 - P1384783
Fadil Abdurahmanovic
Boris Shorokhov

Shakhmatnaya Kompozitsiya 138 2017
2. ehrende Erwähnung
P1384783
(5+12)
h#4
1. b1=S g5 2. Sxd2 0-0-0 3. Sb1 Td7 4. Le1 Lh3#
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SCHRECKE: C+, Gustav 4.1d, Brute Force (2020-12-31)
comment
Keywords: Unpinning, Klasinc theme (s-K/T), Line opening, Line opening, Line closing, Model mate, Castling, Switchback (s), under-promotion (s), under-promotion key
Genre: h#
FEN: 8/8/4k3/pp2p3/1pb1p1P1/2b2pp1/1p1P4/R3KBr1
Input: Gunter Jordan, 2020-12-31
Last update: Gunter Jordan, 2020-12-31 more...
4 - P1389601
Kurt Keller
2932 ChessStar Static2021 11/05/2021
P1389601
(3+3) C+
#7
1. Kf3? Kf1 2. Sg2 Kg1 3. S6f4 Kf1 4. Se2 Tg1 5. Sg3#
2. ... Tg1!

1. Sh5! Kg2 2. Sh4+? Kg1 3. Kf3 Kf1 4. Sg2 transposes to main line
2. ... Kh3!
2. Sgf4+ Kg1 3. Kf3 Kf1 4. Sg2 Kg1 5. Sg3? stalemate!
5. Shf4 Kf1 6. Se2 Tg1 7. Sg3#
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Comments:
SCHRECKE: vergleiche: P1124561 (2021-05-15)
comment
Keywords: Miniature (only 6 pieces), Exchange of roles (SS), Stalemate dissolution, Flight-giving key, Stalemate avoidance, Pendulum (k), Switchback (Sk), Selfblock, Square vacation (e2f4g1), Line closing (g1-g3)
Genre: n#
Computer test: Popeye Windows-32Bit v4.63 (512 MB)
FEN: 8/8/6N1/8/5N2/8/4K2p/6kr
Input: Kurt Keller, 2021-05-15
Last update: Kurt Keller, 2021-05-15 more...
5 - P1398686
Rustam Ubaidullajew
R557 The Problemist 07/2020
P1398686
(14+11) C+
BP in 13.5
1. e4 Sf6 2. Dg4 Sxe4 3. Dxg7 Lxg7 4. c4 0-0 5. c5 Lh8 6. c6 Kg7 7. cxb7 Kf6 8. bxc8=D Ke5 9. Dxd8 Kd4 10. Se2+ Kd3 11. Dxd7+ Kc2 12. Dg4 Sd7 13. Sg1 Tac8 14. Dd1#
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Henrik Juel: Euclide 1.01 is probably faster than Jacobi here (1 minute) (2022-01-27)
comment
Keywords: Antiphönix, Unique Proof Game, Excelsior white, Homebase (w), Line closing, Phoenix, Pronkin Theme, Castling, Switchback (S), Promotion (D)
Genre: Retro
Computer test: Jacobi v0.7.5
FEN: 2r2r1b/p1pnpp1p/8/8/4n3/8/PPkP1PPP/RNBQKBNR
Input: Gunter Jordan, 2022-01-27
Last update: Gunter Jordan, 2022-01-27 more...
6 - P1411657
Eberhard Schulze
5013 idee & form 159, p. 5390, 07/2023
P1411657
(2+5) C+
h#6
0.1.1...
1. ... Sxc3 2. e2 Sd5 3. Lb4 Sxe7 4. e1=T Sf5 5. Lf8 Kc8 6. Te7 Sd6#
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Anirudh: Should be h#5.5 for a unique solution -
1...Sxc3 2.e2 Sd5 3.Bb4 Sxe7 4.e1=R Sf5 5.Bf8 Kc8 6.Re7 Sd6# (2023-08-08)
Joost de Heer: That's what it says already: h#6 0.1. is an old way of writing h#5.5 (2023-08-08)
A.Buchanan: Guess the pawn grabbing is thematic: -sBc3, wSb1/d1 is still unique (2023-08-08)
comment
Keywords: Minimal (S), Miniature, Line opening, Switchback (S), under-promotion (t), Selfblock, Ideal mate, Line closing, changed blocks, Square vacation
Genre: h#
Computer test: Gustav 4.2
FEN: 4k3/1K2p3/8/3N4/8/2p1p3/8/4b3
Input: Eberhard Schulze, 2023-08-08
Last update: Felber, Volker, 2023-12-13 more...
7 - P1414611
Francis J. C. de Blasio
? 1946
The United States
Chess Federation 1946
Tourney Nr. 1
First Prize
P1414611
(8+6) C+
#2
1. Lc7! e6 2. Ld8#
1. ... e5 2. Se6#
1. ... Se5 2. Se6#
1. ... Sf4 2. Lxf4
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more ...
comment
Keywords: Unpinning (Schlüssel), Switchback, pin-mate, Line closing
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: 2BB4/4p1K1/7n/Q1b3k1/3N3R/3nr3/6N1/5R2
Reprints: 187 The American Two-move Chess Problem , p. 79, 1965
Input: Dieter Berlin, 2024-01-21
Last update: Dieter Berlin, 2024-01-22 more...
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The problems of this query have been registered by the following contributors:

Felber, Volker (1)
A.Buchanan (1)
Gunter Jordan (2)
Kurt Keller (1)
Eberhard Schulze (1)
Dieter Berlin (1)