Die Schwalbe

212 problem(s) found in 1390 milliseconds (displaying 100 problem(s)). [A='Lipton' and FIRSTNAME='Michael']

1 - P0001327
Barry Peter Barnes
Michael Lipton

Die Schwalbe 1962
P0001327
(11+14)
#2
b) Bc2 nach e6
hans: a)
1. Kd2! Dg2 2. Sdf2#
1. Sb2? (2. Kd2#, 0-0-0#) but 1. … Dg2! (0-0-0 is illegal)

b)
1. Sb2! Dg2 2. 0-0-0#

La7 is promoted on c1 or e1, for the original is captured on the spot. In a) can’t reach c1 without an annoying check, in b) it’s possible. (2013-2-5)
comment
Keywords: Cant Castler, Castling (wg)
Genre: Retro
Reprints: (2) Problem 83-86 09/1962
199 Europe Echecs 115 08/1968
RA9 diagrammes 13 02/1975
(46) Die Schwalbe 72 12/1981
Input: Gerd Wilts, 1995-6-3
Last update: Gerd Wilts, 2005-11-13 more...
2 - P1008193
Michael Lipton
9731 Die Schwalbe 167 10/1997
P1008193
(6+1)
#2
(M. Lipton). 1.Te5? (ZZ) Kf7 2.e8D; (1.- Kd7!); 1.Se5? patt; 1.Sd4? (ZZ) Kf7 2.Tf5 (1.- Kd7!); 1.Sa7? (ZZ) Kd7 2.Tb6 (1.- Kf7!); 1.Tb6! (ZZ) Kf7/Kd7 2.Se5/Sa7. Nette Kleinigkeit (MW). Verführungsreich (Dr. ,KHS). Eine ansprechende Miniatur (MOe). Udo Degener fand einen Vorgänger (s. Dia).
play all play one stop play next play all
Michael Lipton: I don't know the claimed anticipation and I would be grateful if someone can send it to me on mlipton@onetel.com (2011-7-29)
Erich Bartel: zu dem von U.Degener zitierte Vorgänger siehe P1169987 (2011-7-29)
Michael Lipton: There's a slight visual resemblance to P1169987. Both are LTS half-batteries. But the matrix is different in three ways: with respect to the loci WS-WT, WS-BK and WT-BK!
The content is completely different. Nikolaev's is a Banny: 1.Tc8?/Th2? Kg6!/Kg8! 1.Sd6! Kg6/Kg8 2.Th2/Tg6. My problem is a Zabunov (battery key to create a second battery) with WT ambush behind WSc6 to guard the remote flight e6; the tries change the mates after the flights.
There is no question of an anticipation of P10098193. (2011-7-30)
more ...
comment

Genre: 2#
Input: Gerd Wilts, 2003-6-29
Last update: Erich Bartel, 2011-7-29 more...
3 - P1008205
Michael Lipton
9743 Die Schwalbe 167 10/1997
P1008205
(3+4) C+
#3
1. Sd1? Lf3+ 2. Ke1 Lxd1
1. Sd3? Lf1+ 2. Ke3 Lxd3
1. Sc4? Lf1+ 2. Ke3 Lxc4
1. Sa4! droht 2. Db2#
1. ... Lf3+ 2. Ke1 ... 3. Db2#
1. ... Lf1+ 2. Ke3 ... 3. Db2#
play all play one stop play next play all
Hervorragende Miniatur mit Auswahlschlüssel (KHS).
Zweimaliger Block des L zuungunsten des S mit entsprechenden Verführungen. Die Neuheit sehe ich nicht, und das Problem ist sehr symmetrisch (MOe: 1,5/I).
In Heft 11/1997 von "Schach-Aktiv" hat Michael Lipton übrigens eine _sehr ähnliche_ Aufgabe veröffentlicht [siehe P1148772]: Lösung 1.Sg5 [1.- Sc3+/Sd4+/Lg7 2.Ke1/Kf2/De8+] mit undeckbarem Matt und Schwarz hat Racheschachs die W nur ein Feld für den König lassen (MW).
Vielen Dank für den Hinweis. Die Probespiele in der Schwalbe-Version sorgen jedoch für ausreichende Eigenständigkeit (ThZ).
more ...
comment

Genre: 3#
Computer test: Popeye 4.61
Input: Gerd Wilts, 2003-6-29
Last update: Alfred Pfeiffer, 2019-1-6 more...
4 - P1017988
Michael Lipton
The Observer 1962
nach G. Guidelli
P1017988
(13+9)
#2
Michael Lipton: Source is The Observer 1962. The problem was published as AFTER G. GUIDELLI (in his problem two main variations are return captures, not cross-checks; a third is dualized).
1.Sc2 ~(Le5,Te1) 2.Se3 ~(f1S,Tb3) 2.De4. bS~+ 2.Sb4 bSd5+! 2.Sb2. cS~+ 2.Sf4. cSd5+! 2.Se5. (d5/Kd5 2.Sa3/~De4.)
Random and correction cross-checks by two BSs met by mates of a battery WSW. The corrections are by self-unpin, but they make new self-block errors. (2011-7-31)
comment
Keywords: Brian Stephenson Collection (2821)
Genre: 2#
Reprints: The Two-move Chess Problem: Trad. & Dev. 1966
Input: Brian Stephenson, 2004-8-12
Last update: Frank Müller, 2011-7-31 more...
5 - P1018274
Michael Lipton
The Observer 1966
1. ehrende Erwähnung
P1018274
(7+2)
#2
Michael Lipton: Source: The Observer
1.Lb3 Zzw. [D~ 2.Dc5,Dc1,Db2.] Da1 2.Dc5. Dc1 2.Dxc1. Dxe1 2.D(x)b2. Dxb3! 2.Dxb3 (Dc5?). Dxa2! 2.Dxa2 (Dc5?)
BQ forces five unpin mates by WQ, three as triple-separation, two after corrections. The dual 1...Db2,Dd1 2.Db2,Dc5 is a shame, but seems unavoidable. (2011-7-31)
comment
Keywords: Brian Stephenson Collection (3107)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
Last update: Frank Müller, 2011-7-31 more...
6 - P1018275
Michael Lipton
The Observer 1966
1. ehrende Erwähnung
P1018275
(12+10)
#2
Michael Lipton: Source: The Observer
1.Sxg6 ~(Sf7)2.Se7, ~(Sc6)2.Lxh4. Tgxg4+ 2.Le4. Dxg4+ 2.e4. Thxg4+ 2.Lf4. (Txh3 2.Sxh6. Dxd3 2.Df3.)
Key allows three cross-check self-pins. (2011-7-31)
comment
Keywords: Brian Stephenson Collection (3108)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
Last update: Frank Müller, 2011-7-31 more...
7 - P1018461
Michael Lipton
British Chess Magazine 1955
4. Preis
P1018461
(11+7)
#2

BS Problemid: 3297
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1955
Michael Lipton: Set Txe6+ 2.Tf3. Txg4+ 2.Td5.
1.Lg3! Zzw. Txe6+ 2.Td5. Txg4+ 2.Tf3. (Sg5/Sf6/Sf8 2.Sg7/Sh6/exf8=Q.) Reciprocally changed cross-checks. (2011-7-31)
comment
Keywords: Brian Stephenson Collection (3297)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
8 - P1018462
Michael Lipton
British Chess Magazine 1956
P1018462
(7+5)
#2

BS Problemid: 3298
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1956
Michael Lipton: 1.Th3 (pseudo~ 2.Thxe3 and 2.Rbxe3). Tc3 2.Ld3 (Lf3? Ke3). Tg3 2.Lf3 (Ld3? Ke3). Mates allowed by black-white clearance, with Java dual avoidance by black-white anti-clearance. (c3/cxb3/g3/gxh3/Txe2 2.Tb4/Db4/Th4/Dh4/Dxe2.) (2011-7-31)
comment
Keywords: Brian Stephenson Collection (3298)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
9 - P1018463
Michael Lipton
British Chess Magazine 1956
P1018463
(9+13)
#2

BS Problemid: 3299
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1956
Michael Lipton: This is (and was published as) a version (constructional improvement) of ML by Edgar Holladay. Generalized black correction x2; dual avoidance between corrections.
1.Te1 ~2.Tf1.
bSd4 2.Ld5. Txf4! 2.Dh3 (2.Ld5? Taxd5, Bristol correction; 2.Dh5? Tg4, secondary Nietveld dual avoidance)
bSd6 2.Se5. Lxf4! 2.Dh5 (2.Se5? Dxe5, Bristol correction; 2.Dh3? Lg3, secondary Nietveld dual avoidance)
(Sxe1/Se3 2.Ld1/Txe3.) (2011-7-31)
comment
Keywords: Brian Stephenson Collection (3299)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
10 - P1018475
Michael Lipton
Barry Peter Barnes

British Chess Magazine 1962
P1018475
(10+10)
#2

BS Problemid: 3312
Authors: Lipton, Michael
Barnes, Barry Peter
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1962
Michael Lipton: (A slightly improved version of the published position.)
1.Sb2? ~2.Kd2. Dg5 2.Ke2. Dg2! 2.0-0-0 illegal!
1.dSf2? ~2.Kd2. (Dg5 2.Ke2.) Dxg7! 2.0-0-0 illegal!
1.Kd2! ~2.dS~. Qg2+ 2.dSf2. Dg5+ 2.Se3.
Half-battery; the tries fail because retrograde analysis proves that battery-opening by castling is illegal. The pioneer. A later version, with a twin keyed by the WS because the pawn shift legalized castling, got a prize. I prefer this version, because the twin gives away the idea. (2011-7-31)
comment
Keywords: Brian Stephenson Collection (3312)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
11 - P1018488
Michael Lipton
British Chess Magazine 1963
P1018488
(5+7)
#2

BS Problemid: 3325
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1963
Michael Lipton: PUBLISHED (CORRECTLY) AS "AFTER M. ADABASHEV".
1.La3, ~2.Tb2. L~ (=Lc2) 2.D(x)c2. Lc4! 2.Sc3 (2.Sd2? Kc2) Le2! 2.Sd2 (2.Sc3? Kc2). (Lc2/Lxe4+/Tf2 2.Dxc2/Dxe4/Dc1.)
Correction unpins lead to Java dual avoidance. (2011-7-31)
comment
Keywords: Brian Stephenson Collection (3325)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
12 - P1018494
Michael Lipton
British Chess Magazine 1964
P1018494
(9+5)
#2

BS Problemid: 3331
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1964
Michael Lipton: 1.g4 ~2.Lf3. Tc2+ 2.Le2. Tb2+ 2.Sd2. Lc5+ 2.Se3.
Complete half-pin + cross-check + interference. There's a partial anticipation, I am told, but without the extra cross-check + interference 1...Lc5 (can someone please supply the problem and source?) My problem can be shown in Meredith with an even worse key! (2011-7-31)
comment
Keywords: Brian Stephenson Collection (3331)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
13 - P1018508
Michael Lipton
British Chess Magazine 1966
3. Preis
P1018508
(11+11)
#2

BS Problemid: 3345
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Chess Wizardry: The New ABC of Chess Problems 1996
Years: 1966
Michael Lipton: Set Sc6,Sf3 2.Lxd4. Sf7,Sg4,Bd6 2.Sxd4. (f3 2.Sg3.)
1.Ld8+? Lxf8 2.gxf8D (2.Sxd4??) but 1...Sf7! 2.Sxd4??
1.Sxd4+? Lxd4 2.Ld8,Lxe5??
[1.Sxg5? (~2.Txe5) Sc6 2.Ld8 (2.Le7?) but d6! (2.Lxe5?)]
(1.dSxf4? (~2.Txe5) Txh5!)
1.Sd8! ~(f3) 2.Rxe5. Le7 2.Dxe5 (2Dxd7?) Ld6! 2.Le7. eS~(Sf3,Sf7,Sg4) 2.Dxd7. Sc6! 2.Lxd4 (Le7?) d6 2.Lxe5.
Two set half-pin mates. After the self-pin key there are three interference unpins of WLf6, two with half-pin and black correction. Tries show white half-pin, with a changed and transferred black half-pin/unpin and a new half-pin variation.
A small improvement: remove sTh6, add sLd1 (C+). Then 1.dSxf4? Lxh5! with an extra try 1.g8=S,Q? e3! (2011-7-31)
comment
Keywords: Brian Stephenson Collection (3345)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
14 - P1018510
Michael Lipton
British Chess Magazine 1967
2. Preis
P1018510
(12+8)
#2

BS Problemid: 3347
Authors: Lipton, Michael
Sources: Chess Wizardry: The New ABC of Chess Problems 1996
Years: 1967
Michael Lipton: (Set Lxb5+ 2.Sxb5. Dc6+ 2.Txc6. Ta8/Txb7/Tc8/Txe8 2.bxa8Q/a8S/bxc8Q/Sxe8))
1.Sec4? ~(Txc4) 2.b6, ~(Lxc4) 2.Dc5, ~(Dxc4) 2.Sdxf7 Txe8!
1.Sdc4! ~(Txc4) 2.b6, ~(Lxc4) 2.Tc6, ~(Dxc4) 2.Sexf7.
Cyclic Nowotny, with two of the three thematic mates changed. (2011-7-31)
comment
Keywords: Brian Stephenson Collection (3347)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
15 - P1018755
Michael Lipton
The Problemist Supplement 2000
P1018755
(12+9)
#2

BS Problemid: 3592
Authors: Lipton, Michael
Sources:
Years: 2000
Michael Lipton: 1.e4 ~2.Sg7. fxe3 e.p. 2.Sf4. dxe3 e.p.! 2.Dh8 (2.Sxf4?) (fxg3 2.Dd1 (2.Sxg3?) Lf7/Lxe8 2.Lxf7/dxe8D.)
Double en-passant creates a new (?) form of arrival correction pinning. Heavy and ugly, but I see no improvement: "if a thing's worth doing, it's worth doing badly" (Chesterton). (2011-7-31)
comment
Keywords: Brian Stephenson Collection (3592)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
16 - P1027526
Michael Lipton
American Chess Bulletin 1960
P1027526
(10+9)
#2

BS Problemid: 12410
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1960
Michael Lipton: Remove! Unsound - many cooks. Maybe a misprint. Intention is 1.Tc7? 1.Td7! with the WRs swapping roles after their reciprocally changed unpins, but there are better (and sounder) settings! (2011-7-31)
Michael Lipton: Don't remove, but restore BSe1, as in the published problem (and Brian Stephenson's Meson database). Then it's sound: 1.Td7? f5/Lg7 2.Te6/Td6. (Sd3 2.Te6.) axb6! 1.Te7! f5/Lg7 2.Td6/Te6. (Sxd3 2.Dh1; S~/axb6 2.Dxc2/Tc7). Reciprocally changed unpins via unchecking try and key. (2011-8-31)
comment
Keywords: Brian Stephenson Collection (12410)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
17 - P1027552
Michael Lipton
Die Schwalbe 1960
P1027552
(10+4)
#2
Michael Lipton: The correct source is Die Schwalbe 1960.
Set Kc6 2.Txd6; Ke6 2.Sf4; Ke4 2.Sc3.
1.Tf5+! Kc6 2.Tc7; Ke6 2.Sd4; Ke4 2.Sg3.
Three changed BK interference unpins are possible only with this horrible key. (2011-7-31)
comment
Keywords: Brian Stephenson Collection (12436)
Genre: 2#
Reprints: Chess Problems: Introduction to an Art 1963
Mat Plus 1994
The Problemist 2003
Input: Brian Stephenson, 2004-8-12
Last update: Frank Müller, 2011-7-31 more...
18 - P1027557
Michael Lipton
John M. Rice

Die Schwalbe 1960
4. ehrende Erwähnung
P1027557
(8+5)
#2

BS Problemid: 12441
Authors: Lipton, Michael
Rice, John M
Sources: The Two-move Chess Problem: Tradition and Development 1966
FIDE Album (1959-1961) 1966
Years: 1960
Michael Lipton: (Set 1...c5 2.Le4.)
1.Lc8? Kc4 2.La6. Sc4 2.Lf5. c5!
1.Lxc6? Kc4 2.Lb5. Sc4 2.Le4. Sd1!
1.Sxc6! Zzw Kc4 2.Se5. Sc4 2.Sb4. (Sd1 2.La6. aS~ 2.bTxc3.)
Zagoruyko, with interference unpins in two of the phases. (2011-7-31)
comment
Keywords: Brian Stephenson Collection (12441)
Genre: 2#
Reprints: FIDE Album 1959-1961 1966
Input: Brian Stephenson, 2004-8-12
Last update: Frank Müller, 2011-7-31 more...
19 - P1027564
Michael Lipton
? 1960-1961
4. Platz
P1027564
(9+7)
#2

BS Problemid: 12448
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
FIDE Album (1959-1961) 1966
Chess Wizardry: The New ABC of Chess Problems 1996
Years: 1960-1961
Michael Lipton: Source: Match, USA vs Great Britain, 1960-61
1.0-0? (~2.Tfe1, 2.Tae1) Ke2+ 2.Sd4. Ke4+ 2.Sc5. bxc4!
1.0-0-0! (~2.The1, 2.Tde1) Ke2+ 2.Sf4. Ke4+ 2.Sg5. (2011-7-31)
comment
Keywords: Brian Stephenson Collection (12448)
Genre: 2#
Reprints: FIDE Album 1959-1961 1966
Input: Brian Stephenson, 2004-8-12
Last update: Frank Müller, 2011-7-31 more...
20 - P1027588
Michael Lipton
Probleemblad 1960
1. ehrende Erwähnung
P1027588
(9+9)
#2

BS Problemid: 12472
Authors: Lipton, Michael
Sources: FIDE Album (1959-1961) 1966
Chess Wizardry: The New ABC of Chess Problems 1996
Years: 1960
Michael Lipton: 1.La1+? Scd5! 2.Tc3 Kd4. 1.Lg1+? Sed5! 2.Te3 Kd4. 1.La7+? bTd5! 2.Sc5 Kd4. 1.Lh8+? gTd5! 2.Se5 Kd4.
1.Lg7+! Scd5/Sed5/bTd5/gTd5 2.Tc3/Te3/Sc5/Dxg3!(2.Se5?Kd4).
Checking critical tries meet secondary Theme A refutations, with a correction line-cutting key. (2011-7-31)
comment
Keywords: Brian Stephenson Collection (12472)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
21 - P1027595
Michael Lipton
Problem 1960
Lob
P1027595
(11+9)
#2

BS Problemid: 12479
Authors: Lipton, Michael
Sources: Chess Problems: Introduction to an Art 1963
The Two-move Chess Problem: Tradition and Development 1966
Years: 1960
Michael Lipton: Set Txc3 2.Lb6. Txe3 2.Le5. (Kxc3 2.Lb5.)
1.Se5? Zzw? Txc3 2.Txe4. Txe3 2.Txc4. Kxc3! 2.Le5?? Df6??
1.Sd6! Zzw Txc3 2.Sf5. Txe3 2.Sb5. Ke5 2.Txe4. Kc5 2.Txc4.
(Kxc3 2.Df6. Kxe3 2.Lb6.)
The first problem to combine a correct Zagoruyko (after 1...Txc3 and 1...Txe3) with a complete Rukhlis (same moves between try and post-key play and 1...Ke5, Kc5 post-key)
Incidental star-flights, 2 given by key; change 1...Kxc3.
My best problem. Judge Ferenc Fleck gave it an unranked Commendation, without comment. Not in FIDE Album. (2011-7-31)
comment
Keywords: Brian Stephenson Collection (12479)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
22 - P1027643
Michael Lipton
American Chess Bulletin 1961
2. Preis
P1027643
(7+5)
#2

BS Problemid: 12527
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1961
Michael Lipton: 1.dxc5? Kxc5 2.Ta5. e4 2.Dg5. dxc5 2.Dd8. (S~ 2.Dc4.) Se4!
1.dxe5! c4 2.Ta5. Kxe5 2.Dg5. dxe5 2.Dd8. (S~ 2.De4.)
Mate transferences; the first two show reciprocal change of function betwwen WQ and WR, and between BK and BPd5. (2011-7-31)
comment
Keywords: Brian Stephenson Collection (12527)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
23 - P1027653
Michael Lipton
John M. Rice

British Chess Problem Society 1961
Lob
P1027653
(10+8)
#2

BS Problemid: 12537
Authors: Lipton, Michael
Rice, John M
Sources: Chess Problems: Introduction to an Art 1963
Years: 1961
Michael Lipton: (Set Txe7 2.Txd3)
1.exd3? Txe7 2.dxc4. Te4!? 2.dxe4. Txf3!
1.Sxd3? Txe7 2.Sf4(Sb4?). Te4 2.Sb4(Sf4?) (c5 2.Da8.) Se5!
1.Lxd3! Zzw. Txe7,T~e 2.Lxc4. Te4! 2.Lxe4. (Txd3+/Txf3/cS~/hS~/dxc5 2.Txd3/e4/Sxe3/Sf6/Dxc5.)
Zagoruyko, with unpins of white in all phases. Unprovided checks are unavoidable. (2011-7-31)
comment
Keywords: Brian Stephenson Collection (12537)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
24 - P1027673
Michael Lipton
Die Schwalbe 1961
ehrende Erwähnung
P1027673
(8+2)
#2

BS Problemid: 12557
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
FIDE Album (1959-1961) 1966
Years: 1961
Michael Lipton: 1.Sd3? Ka3 2.Lc5. Ka5!
1.Lc5? Ka3 2.Sd3. (Ka5 2.Sc6.) Kb5!
1.Sd5? Ka5 2.Lc3. (a5 2.Lc5.)Ka3!
1.Lc3! ~(a5,Ka3)2.Sc2. Ka5 2.Sd5. (Kb5 2.Sd3. axb5 2.a8D.)
Double sequence reversal, with extra changes, by half-battery. Also 1.Le3? Kxb5 2.Sc6 (Ka3!). (2011-7-31)
comment
Keywords: Brian Stephenson Collection (12557)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
25 - P1027744
Michael Lipton
? 1961
1. Preis
P1027744
(14+10)
#2

BS Problemid: 12628
Authors: Lipton, Michael
Sources: Chess Problems: Introduction to an Art 1963
FIDE Album (1959-1961) 1966
Chess Wizardry: The New ABC of Chess Problems 1996
Years: 1961
Michael Lipton: Source is 1st Prize, Ségal Memorial Tourney, 1961.
1.Kf2+? Kf5! 2.g4? 1.Kf4+? Kd7! 2.c8Q? 1.Kd4+? Kf7! 2.gxf8=D? 1.Kd2+? Kxd5! 2.c4? 1.Kd3+! Kxd5 2.La3 (2.c4?). Kd7/Kf7/Kf5 2.c8D/gxf8D/g4.
Star-flight of WK tries fails, due to four self-pins, to the four BK star-flights. A fifth WK self-pin corrects and succeeds. (2011-7-31)
comment
Keywords: Brian Stephenson Collection (12628)
Genre: 2#
Reprints: Problemkiste (148) 08/2003
Input: Brian Stephenson, 2004-8-12
Last update: Erich Bartel, 2013-1-1 more...
26 - P1027768
Michael Lipton
Tidskrift för Schack 1961
1. ehrende Erwähnung
P1027768
(9+10)
#2

BS Problemid: 12652
Authors: Lipton, Michael
Sources: The Problemist 2001
The Two-move Chess Problem: Tradition and Development 1966
Years: 1961
Michael Lipton: 1.Lc3? ~2.Dxf7 Dxg8 2.Kf3 Lxb6 2.Kxg3 Txb6!
1.Le5? ~2Dxf7 ~(Tf3)2.Sg7 Txb6 2.Kxg3 Dxg8 2.Kf4 Lxb6!
1.Lf6! ~2.Dxf7 Lxb6 2.Kf4 Txb6 2.Kf3 Dxg8 2.Txe7 (h5+ 2.Kg5)
Dreiliniensperre with WK battery mates. Completely anticipates later prizewinners (H. Prins, J. Brabec) in Milan Velimirovic's collection of cyclic mating permutations. The later problems avoid my double threat, but at the cost of a lot more material. (2011-7-31)
comment
Keywords: Brian Stephenson Collection (12652)
Genre: 2#
Reprints: The Problemist 1961
B The Problemist Supplement 135, p. 416, 03/2015
Input: Brian Stephenson, 2004-8-12
Last update: Felber, Volker, 2015-4-1 more...
27 - P1027770
Michael Lipton
Tijdschrift van den NSB 1961
1. ehrende Erwähnung
P1027770
(10+4)
#2

BS Problemid: 12654
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1961
Michael Lipton: 1.Sf5? Kxa5 2.Lc7 Ka3 2.Lc1(Ld6?) Kc5 2.Le3 (Ld6?) Kxc3!
1.Le5? Kc5 2.Se6 Kxc3 2.Sf3 Kxa5!
1.Ld2? Kxa5 2.Sd5 Kc5!
(1.Lg3?/1.Ld6+? Kxc3 2.Le1/Dc2 or 1.Lc1? Kc5 2.La3. Kxa5!)
1.Le3! Zzw Kxa5 2.Sc6 Kxa3 2.Sc2 Kc5 2.Sf5 Kxc3 2.Se2.
Half-battery tries and key give 13 mates for BK flights. Quite different from the problems in a famous coincidence: John Rice's and Werner Issler's almost identical Meredith settings of four canged star-flights. Mine was published in the interim between submission and publication of these two formal-tourney entries! None of these three contemporaries anticipates any other. (2011-7-31)
comment
Keywords: Brian Stephenson Collection (12654)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
28 - P1027794
Michael Lipton

P1027794
(7+9)
#2

BS Problemid: 12678
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1962
Michael Lipton: Source: Ceskoslovensky Sah, 1962.
1.S7xb6? Sc4 2.S5xf6. Se8 2.Sc3. Sf5, Tf4 2.D(x)f4. cS~!
1.S5xb6! Zzw Se8 2.Sc5. Sc4 2.S7xf6 Sf5 2.Dg4 Tf4 2.Dd5 Indirect masked half-battery with two further changes. Duals after loose black moves are a slight pity; the refutation of the try, cS~, while technically a single defensive idea, is unpleasant. Is improvement possible? (2011-7-31)
comment
Keywords: Brian Stephenson Collection (12678)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
29 - P1027799
Michael Lipton
Correspondence Chess 1962
P1027799
(11+8)
#2

BS Problemid: 12683
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1962
Michael Lipton: 1.Da3, with two changed cross-check self-blocks, but completely anticipated by Comins Mansfield in an almost identical setting, and should be removed. (2011-7-31)
comment
Keywords: Brian Stephenson Collection (12683)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
30 - P1027816
Michael Lipton
Die Schwalbe 1962
3. Preis
P1027816
(9+11)
#2

BS Problemid: 12700
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Chess Wizardry: The New ABC of Chess Problems 1996
Years: 1962
Michael Lipton: 1.Txd2? (2.Sd6) Le5 2.Txe5 Ta7!
1.Txd3!?(~2.Te3) cxd3 2.Sd6 Kxd3 2.Sc5 (Ld4 2.Txd4) Le5!
1.Txg5? (~2.Sc5) Ld4 2.Txd4. Ra5!
1.Tf5! (~2.Lc2) gxf5 2.Sc5 Kxf5 2.Sd6 (Le5 2.Txe5)
Each white Rook threatens mate by a random anti-critical move (1.Td7 across d6? only 1.Txd2 plausible; and 1.Tb5 across c5? only 1.Txg5 plausible). These tries err by opening ranks for black Rook defences. So each white Rook, by double sacrifice on a flight, replaces the primary threat with another (threat correction). The two captures, on d3 after the threat-correction try and on f5 after the key, defeat the corrected threats, and force the return of the two random threats as vaeriatons. (2011-7-31)
comment
Keywords: Brian Stephenson Collection (12700)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
31 - P1027819
Michael Lipton
Die Schwalbe 1962
Lob
P1027819
(15+6)
#2

BS Problemid: 12703
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1962
Michael Lipton: 1.Sd8? Txc5 2.Txc5 Td6 2.Txd6 (Txe5 2.Txe6) Txd4!
1.Td6? Txc5 2.Sxc5 Txd6 2.Sxd6 (Txd4 2.T6xd4) Txe5!
1.Da4! Zzw Txc5 2.dxc5 Td6 2.d5 (Txd4 2.Dxd4 exf6+/exf5/S~ 2.Sxf6/Lxf5/Sg3)
Spoof half-battery, with Zagoruyko after Txc5, Td6. (2011-7-31)
comment
Keywords: Brian Stephenson Collection (12703)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
32 - P1027837
Michael Lipton
The Jerusalem Post 1962
P1027837
(10+6)
#2

BS Problemid: 12721
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1962
Michael Lipton: 1.Sxf6? ~2.Sf~ dTxd3 2.Tc5 fTxd3 2.Tf2 Txh3!
1.Tg2! ~2.Tg5 dTxd3 2.Sd6 gTxd3 2.Sg3 (Tf2+/gxh6 2.Txf2/Dxf6)
Self-pin changes on a masked half-battery. (2011-7-31)
comment
Keywords: Brian Stephenson Collection (12721)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
33 - P1027860
Michael Lipton
Problemnoter 1962
P1027860
(8+4)
#2

BS Problemid: 12744
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1962
Michael Lipton: 1.Tf3? ~2.Td7 Lxd3 2.Tb7 exd3 2.Tg4 Sxf1 2.Tg2 Sc4 2.Tc7. Kxd3!
1.Tg3! ~2.Td6 Lxd3 2.Tb6 exd3 2.Tf4 Sxf1 2.Tf2 Sc4 2.Tc6.
Choice of half-battery ambushes leads to four changes, including two after self-block line-openings. Try fails and key works because BBb5 guards d7, but not d6. (2011-7-31)
comment
Keywords: Brian Stephenson Collection (12744)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
34 - P1027922
Michael Lipton
John M. Rice

Correspondence Chess 1963
P1027922
(7+3)
#2

BS Problemid: 12806
Authors: Lipton, Michael
Rice, John M
Sources: Chess Problems: Introduction to an Art 1963
Years: 1963
Michael Lipton: 1.Th6 Zzw Kf6 2.Ld4. Kd6,S~ 2.Dxf4 Ke4 2.Dd2 L~ 2.Lb8 (2011-7-31)
comment
Keywords: Brian Stephenson Collection (12806)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
35 - P1027923
Michael Lipton
Correspondence Chess 1963
P1027923
(10+6)
#2
Michael Lipton: 1.Sxg5? Zzw Lxc4 2.Tf5 Lxe6 2.Td3. a5!
1.Ta3 ~2.Txa6. Lxc4 2.Sd6 (Sc3?) Lxe6 2.Sc5 (2.Sf6?)
Fuses ideas from two much earlier Mansfield problems for handlng a pair of black self-pins - line-openings for a WT battery-firer, and secondary Schiffman avoidances by a WS battery-firer - to make a masked TS half-battery with self-pins. While inspired by CM, this in turn anticipated a later (and heavier) problem by him. (2011-7-31)
comment
Keywords: Brian Stephenson Collection (12807)
Genre: 2#
Reprints: The Two-move Chess Problem: Trad. & Dev. 1966
Input: Brian Stephenson, 2004-8-12
Last update: Frank Müller, 2011-7-31 more...
36 - P1027942
Michael Lipton
Barry Peter Barnes

Die Schwalbe 1963
2. ehrende Erwähnung
P1027942
(9+6)
#2

BS Problemid: 12826
Authors: Lipton, Michael
Barnes, Barry Peter
Sources: The Two-move Chess Problem: Tradition and Development 1966
Barnes about Chess Problems 2001
Years: 1963
Michael Lipton: A Queen can fire a battery if it's indirect, masked, or half. This is all three.
1.De8? ~2.Dg6 Kxf5 2.Se3 Txe8 2.Sf6. Txe6!
1.Sf4! ~2.Lh3. Kxf5 2.Dd7. Txe2 2.Dxe2. (2011-7-31)
comment
Keywords: Brian Stephenson Collection (12826)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
37 - P1027958
Michael Lipton

P1027958
(8+4)
#2

BS Problemid: 12842
Authors: Lipton, Michael
Sources:
Years: 1963
Michael Lipton: Set 3S~ 2.Se5. 5S~ 2.Sd6.
1.Lxd4! Zzw 3S~ 2.Sd2 5S~ 2.Sd6 3Sxd4! 2.Se5 5Sxd4! 2.Sd6 (Kxd4 2.Tb4)
Rukhlis. Looks anticipated; evidence welcome? Thomas Taverner, 1st Prize, Dudley Herald 1893 (in Brian Stephenson's collection) used a related but different matrix to show, not a Rukhlis, but a secondary Dombrovskis! In the late 1960s (?) M.Parthasarathy showed this Rukhlis idea with 3x2 variations(instead of 2x2 as here) by using an extra BB moving at random and (after the key) correcting to take the sacrificed piece. (2011-7-31)
Michael Lipton: Source: Israel Ring Tourney (probably Jerusalem Post) (2011-7-31)
comment
Keywords: Brian Stephenson Collection (12842)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
38 - P1028012
Michael Lipton
Problemisten 1963
ehrende Erwähnung
P1028012
(12+11)
#2
Michael Lipton: Source: Problemisten
1.Sc6? ~2.Se4 bSd2 2.Lxf3 fSd2 2.Lxb3. Txd3!
1.Lc4! ~2.Se4 (Sg1 2.Dh2) bSd2! 2.Sxf3 fSd2 2.Sxb3 (Sc5 2.bxc5)
Half-battery changes two rear-unguard interferences. Awkward construction, lazy WQ, to avoid cooks: improvable? (2011-7-31)
comment
Keywords: Brian Stephenson Collection (12896)
Genre: 2#
Reprints: The Two-move Chess Problem: Trad. & Dev. 1966
Input: Brian Stephenson, 2004-8-12
Last update: Frank Müller, 2011-7-31 more...
39 - P1028020
Michael Lipton
Christopher Reeves

Schweizerische Schachzeitung 1963
2. Preis
P1028020
(11+11)
#2

BS Problemid: 12904
Authors: Lipton, Michael
Reeves, Arthur Christopher
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1963
Michael Lipton: This was the Brunner Memorial Tourney.
Move WK to g1 and remove white Pawn h2.
(Set Qxe5,Qxe6 2.Tb4)
1.Sc4? ~ 2.Sg5 Dxe6 2.Txe7 Dxc4 2.Tb4 (De5/Sxe3 2.Txe5/Tf4)Dxf5!
1.Sd4! ~2.Dxg2 Dxe5 2.Txe7 Dxd4 2.Tb4 (Sxe3/Ld1/gxh3 2.Df4/Dd3/Df3)
The mate 2.Txe7 exploits a 'peri-half-battery'; is this the only example? Otherwise, two transferred peri-self-pins; changes 1...De5, Se3. (2011-7-31)
comment
Keywords: Brian Stephenson Collection (12904)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
40 - P1028058
Michael Lipton
U.S. Problem Bulletin 11-12/1963
2. Preis
P1028058
(7+6)
#2

BS Problemid: 12942
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1963
Michael Lipton: Set T4~ 2.Sd5 Td~ 2.Sxg4
1.Db1? (~2.Df5,Dg6) Te4 2.Sd5 Le4 2.Sxg4. Td3!
1/Da1! Zzw L~d1-e2 2.Sd5 L~h1-a8 2.Sxg4 (d5/c4 2.Da6/Dxd4)
Three mate-transference pairs, twice after lost foci, once after Grimshaw. (2011-7-31)
Felber, Volker: Nachläufer Gamsa unter P1236623 (2012-4-12)
comment
Keywords: Brian Stephenson Collection (12942)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
Last update: Felber, Volker, 2012-4-12 more...
41 - P1028072
Michael Lipton

Lob
P1028072
(13+10)
#2

BS Problemid: 12956
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1964
Michael Lipton: Source: Commended, Castellari Jubilee Tourney, 1964
1.Sc3? ~2.Dxd5 Txd4 2.Le6 Dxd4 2.Lxe2 Kxd4 2.Lf5 Txe5!
1.Ld7! ~2.Dxd5 Txd4 2.Sxd6 Dxd4 2.Sd2 Kxd4 2.Sf6
After captures of the masking P, the half-battery gives two changed self=pins and a changed flight. Heavy! (2011-7-31)
comment
Keywords: Brian Stephenson Collection (12956)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
42 - P1028079
Michael Lipton
Die Schwalbe 1964
P1028079
(9+8)
#2

BS Problemid: 12963
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1964
Michael Lipton: 1.Lf7? ~2.Txg8 Txb1 2.Sg1 Tc2 2.Sf2 Te4 2.Sf4 Td3!
1.hSxg5! ~2.Sf7,(Dxe6)2.Dh7. Txb1 2.Ld1 Tc2 2.Le2 Ter 2/Lg4 Td3 2.Lf3 Txd7 2.Lf7
The half-battery produces eight half-pin mates in the two phases, three changed. (2011-7-31)
comment
Keywords: Brian Stephenson Collection (12963)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
43 - P1028080
Michael Lipton
Die Schwalbe 1964
P1028080
(11+8)
#2

BS Problemid: 12964
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1964
Michael Lipton: 1.De3? ~2.Dxe4A L~ 2.Dxe6B Ld5! 2.De5C Sc5 2.T8e5 Sxh6 2.Se7 Dg2,Dxe2 2.Sh4. Tf4!
1.De7! ~2.Dxe6B S6~ 2.Dxe4A Sc5! 2.De5C Ld5 2.T2e5 Sxh6 2.Df6 Sxe7 2.Sxe7 Te5/Dxg3+ 2.g4/Sxg3
Pseudo-le Grand (AB) between primary and secondary threats, transference (C) after corrections, and other changed play. (2011-7-31)
comment
Keywords: Brian Stephenson Collection (12964)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
44 - P1028183
Michael Lipton
Die Schwalbe 1965
P1028183
(11+8)
#2

BS Problemid: 13069
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1965
Michael Lipton: 1.Sbxc7? La7 2.Se7 Dxc7 2.Se3. Dd4!
1.Sdxc7! Zzw La7 2.Sd6 Dxc7 2.Sd4 Dd5,xe8/De4+/S~/Lh~ 2.Dxf4/Dxe4/Dxh3/Dg4
Half-pin changed by the half-battery that masks it. (2011-8-1)
comment
Keywords: Brian Stephenson Collection (13069)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
45 - P1028201
Michael Lipton
L'Italia Scacchistica 1965
P1028201
(12+8)
#2

BS Problemid: 13087
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1965
Michael Lipton: 1.dSxe3? (~2.Dc4) Lxe5 2.Sd4 Dxe5 2.Sd6 Txa3!
1.fSxe3! (~2.Dc4) Lxe5 2.Sc3 Dxe5 2.Sc7 Ld4/T~ 2.Df1/Dxb4
Masked half-battery brings changes after pinning defences are exploited as masked self-pins. Two half-pin mates. (2011-8-1)
comment
Keywords: Brian Stephenson Collection (13087)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
46 - P1028207
Michael Lipton

Lob
P1028207
(5+3)
#2

BS Problemid: 13094
Authors: Lipton, Michael
Sources:
Years: 1965
Michael Lipton: Source: Comm. Varna Olympic Tny, Magyar Sakkelet, 1965
1.Da1? ~2.Dxg1 Txa1/Tb1/Tc1/Td1/Te1/Tf1 2.Txa1/Dxb1/Dxc1/Dxd1/Dxe1/Dxf1. hxg2!
1.Tg7? Zzw Ta1/Tb1/Tc1/Td1/Te1/Tf1 2.Ta2/Tb2/Tc2/Td2/Te2/Tf2. h2 2.Txg1/ Txg2!
1.Ta1! ~2.Taxg1. Txa1/Tb1/Tc1/Td1/Te1/Tf1 2.Dxa1/Txb1/Txc1/Txd1/Txe1/Txf1
3x6 Zagoruyko. (2011-8-1)
comment
Keywords: Brian Stephenson Collection (13094)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
47 - P1028217
Michael Lipton
Probleemblad 1965
1. Lob
P1028217
(9+10)
#2

BS Problemid: 13104
Authors: Lipton, Michael
Sources: Chess Wizardry: The New ABC of Chess Problems 1996
Years: 1965
Michael Lipton: Set Dh8/Dxh6/Df7/Dc6 2.Tg7/Th7/Txf7/Te6.
1.Txe5 ~2.Lxf6 Sd4,Dxd8 2.Th5 d4! 2.Txd4 Dg5/De7 2.LxD
Radical change: battery-unmasking to unpins of white and black. (2011-8-1)
comment
Keywords: Brian Stephenson Collection (13104)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
48 - P1028244
Michael Lipton
The Problemist 1965
P1028244
(12+8)
#2

BS Problemid: 13131
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1965
Michael Lipton: 1.Lxg5? Th2 2.Lh4 Tf2 2.Lf4. Tc6!
1.Sxd6? Tb7 2.Sxb7 Tb8 2.Sc8 Txd6+ 2.Txd6 Th2 2.Txg5. Tf2!
1.Sxg5! Zzw Th2 2.Sh3 Tf2 2.Sf3 Tb~on file 2.Txd6 Txg5+ 2.Txg5 (Tg~on file/Txb3/Tc6/e3 2.b4/Dxb3/Dxg2)
Two unpins of WL on g5, and WS on d6 and g5, with much changed and transferred play. Unfortunately 1.Lxd6, with two more unpins, though clearly needing the solver's review, is technically not a try (Tc6! or Tf2!) (2011-8-1)
comment
Keywords: Brian Stephenson Collection (13131)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
49 - P1028270
Michael Lipton
British Chess Problem Society 1966
2. Preis
P1028270
(6+5)
#2

BS Problemid: 13157
Authors: Lipton, Michael
Sources: FIDE Album (1965-1967) 1976
Chess Wizardry: The New ABC of Chess Problems 1996
Years: 1966
Michael Lipton: 1.Le5? ~(Txe5) 2.Sg7(Sf6?), (Lxe5) 2.Te7. Sxh7!
1.Td4? ~(Txd4) 2.Sf6, (Lxd4) 2.Sd6. Se4 2.Te7. Te6!
1.Sd4? ~(Txd4) 2.Sf6, (Lxd4) 2.Td8. Te7! 2.Txe7?
1.Ld4! ~(Txd4) 2.Sg7(Sf6?), (Lxd4) 2.Td8. Se6,Te7 2.Te7.
Four Nowotnys with five thematic mates, one transferred twice to an interference. For a fifth Nowotny, move black Re2 to e1, add WPc4 and turn 90 degrees anti-clockwise: 1.e4? Th3+! I prefer the diagrammed setting. (2011-8-2)
comment
Keywords: Brian Stephenson Collection (13157)
Genre: 2#
Reprints: FIDE Album 1965-1967 1976
Input: Brian Stephenson, 2004-8-12
Last update: Frank Müller, 2011-8-2 more...
50 - P1028324
Michael Lipton
Probleemblad 1966
1. ehrende Erwähnung
P1028324
(8+7)
#2

BS Problemid: 13211
Authors: Lipton, Michael
Sources:
Years: 1966
Michael Lipton: Award: 1st Hon. Mention.
1.Se4 ~(Dxe4) 2.Lc6, (Lxe4) 2.Te5. Dxc5,Dg5 2.Sf6. Txd6! 2.Sxd6?
1.Le4! ~(Dxe4) 2.Ta8, (Lxe4) 2.Te6. Dxc5,Dg5 2.Lc6. (Txd6 2.Sxd6)
ENGLISH NOWOTNY: Nowotny in which one of white's first-move thematic interferences is with a pinned piece - an unpin of which gives a third thematic variation. Here doubled in try and key, with three thematic changes. (2011-8-2)
comment
Keywords: Brian Stephenson Collection (13211)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
Last update: Frank Müller, 2011-8-2 more...
51 - P1028339
Michael Lipton
Sinfonie Scacchistiche 1966
P1028339
(9+3)
#2

BS Problemid: 13226
Authors: Lipton, Michael
Sources:
Years: 1966
Michael Lipton: 1.Ld5! Zzw. Le1,La7?? 2.Lxa7,Lb6,Lc5,Ld4,Le3,Lc4. Lb6? 2.Lb6,Lc5,Ld4,Le3,Lc4. Lc5?! 2. Lc5,Ld4,Le3,Lc4. Ld4 2.Ld4,Le3,Lc4. Le3!? 2.Le3,Lc4. Lxg1! 2.Lc4. Lxg3+!! 2.Sxg3. (Kxg2 2.Sd2. S~ 2.Txf2)
The black Bishop progressively allows six, five...one secondary threats, and finally corrects to stop them all. (2011-8-2)
comment
Keywords: Brian Stephenson Collection (13226)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
52 - P1028362
Michael Lipton
The Problemist 1966
Sp. Preis
P1028362
(10+12)
#2

BS Problemid: 13249
Authors: Lipton, Michael
Sources:
Years: 1966
Michael Lipton: 1.Lf4? ~(Txf4/Lxf4) 2.Sd6/Td4. Sxd7!
1.f4? ~(Txf4/Lxf4) 2.Se5/Td4. Txe3 2.Sxe3. Sc6!
1.f3? ~(Txf3/Lxf3) 2.Le2/Tc3.cxd1=S!
1.g4? ~(Txg4/Lxg4) 2.Le2/Td4. cxd1D!
1.Tg3? ~(Txg3/Lxg3) 2.Se5/Se3. Te4!
1.Lg3? ~(Txg3/Lxg3) 2.Sd6(Se5?)/Tc3. Sd5!
1.Sg3? ~(Txg3/Lxg3) 2.Se5/Tc3. Td4!
1.g3! ~(Txg3/Lxg3) 2.Se5/Se3. Td4 2.Txd4.
Eight Nowotnys, with different defences to the seven Nowotny tries. (Not 1.Tf3?? Te4 or cxd1=S) Might a white Queen on a1 force further Nowotny phases 1.Bg4? 1.Bf3?) (2011-8-2)
comment
Keywords: Brian Stephenson Collection (13249)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
53 - P1028363
Michael Lipton
Edgar D. Holladay

The Two-move Chess Problem: Trad. & Dev. , p. 95, 1966
Nach Frank Gamage (1939)
P1028363
(14+7)
#2

BS Problemid: 13250
Authors: Lipton, Michael
Holladay, Edgar
Sources:
Years: 1966
Michael Lipton: Source: not (at present) in Brian S1.Sxe5 (~2.tephenson's collection. It's Michael Lipton and Edgar Holladay, original, The Two-Move Chess Problem: tradition and development (John Rice, Bary Barnes, Michael Lipton: London: Faber, 1966, p. 95) (after Frank Gamage, 3rd Prize, De Maasbode, 1939).
1.Sxe5 (~2.Dg8. Dxe5 2.Sc5 (2.Sg5?Der, Sd2? Le4). Lxe4 2.Sf7 (2.Sf3?Lf5, 2.Sd3? De5). (dxe5/Dxc3+ 2.Dd7/Sxc3)
Two secondary Schiffmanns in each variation, to avoid negating half-pin or self-pin. Gamage did the work to realize the full theme; EH and I only saved a unit, and turned two major duals into minor variations. (2011-8-2)
comment
Keywords: Brian Stephenson Collection (13250)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
Last update: Frank Müller, 2011-8-2 more...
54 - P1028379
Michael Lipton
? 1967
KNSB JT
1. ehrende Erwähnung
P1028379
(14+6)
#2

BS Problemid: 13266
Authors: Lipton, Michael
Sources:
Years: 1967
Michael Lipton: Award: 1st hon. mention
Source: Jubileum Tourney of the Royal Dutch Chess Society (KNSB)
Set S~ 2.Tc6. Sxc7! 2. Txb6. Sxf4! 2.Td6. (1.Kh8? Sxc3!)
1.Ld6! Zzw. S~ 2.Te4. Sxc7! 2. Te5. Sxf4! 2.Te3. (Se7+/Sxf6+ 2.Txe7/Txf6).
1...S~ and two correction self-pins force three changed mates from the same (battery) white Rook. (2011-8-2)
comment
Keywords: Brian Stephenson Collection (13266)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
Last update: Frank Müller, 2011-8-2 more...
55 - P1028416
Michael Lipton
Schakend Nederland 1967
P1028416
(7+5)
#2

BS Problemid: 13304
Authors: Lipton, Michael
Sources:
Years: 1967
Michael Lipton: 1.e4+ Sd3 2.Txf3. Tfd3 2.Txf4. Dd3,xb5 2.Txd1. Tdd3 2.Txb1. Four line-opening self-pins, twice with interference unpin of wTf5 pinned by the key. Impossible, especially in Meredith, without the checking (but otherwise inoffensive) key (2011-8-2)
comment
Keywords: Brian Stephenson Collection (13304)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
56 - P1028492
Michael Lipton
Schakend Nederland 1968
P1028492
(7+5)
#2

BS Problemid: 13381
Authors: Lipton, Michael
Sources:
Years: 1968
Michael Lipton: 1.Da5? (~2.De5) Td6! 2.Sc5 Ke5!
1.Da1,Dc3? (~2.De5) Ld6! 2.Sd4 Ke5!
1.Dg3! (~2.De5) Td6 2.Sc5. Ld6 2.Sd4. Lf5+/Td5 2.exf5/exd5.
Two tries, due to pericritical errors, fail because (in turn) each of black's Grimshaw errors comes to embody a successful Theme A defence. The key attacks e5 from the right angle, and both Grimshaw errors follow. (2011-8-2)
comment
Keywords: Brian Stephenson Collection (13381)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
57 - P1028507
Michael Lipton
The Problemist 1968
1. ehrende Erwähnung
P1028507
(10+7)
#2

BS Problemid: 13396
Authors: Lipton, Michael
Sources:
Years: 1968
Michael Lipton: Award: 1st hon. mention. FIDE Album, 1968-70.
Set Dxd4 2.Sxe3. cSxd4 2.Lb5. eSxd4 2.Lf7.
1.Dxe3 ~(Se5) 2.Sxd2. Dxb4 2.De2. Dxb2,De1 2.Dd3. Dxd4 2.Db3. Dc2 2.Dxe6. Dc3 2.Dxc3 (Dc1/Dxe3+/Sc5 2.Dxc1/Sxe3/Txc5)
Radical change: three self-pins TO white's Queen are replaced by five unpins OF her. Some duals after loose moves of the black Queen. e8 works post-key (1...Se5). (2011-8-2)
comment
Keywords: Brian Stephenson Collection (13396)
Genre: 2#
Reprints: FIDE Album 1968-1970 1977
Input: Brian Stephenson, 2004-8-12
Last update: Frank Müller, 2011-8-2 more...
58 - P1029600
Michael Lipton
The Problemist 1973
9th Keystip Tourney
2. Platz
P1029600
(15+8)
#2
Michael Lipton: Source: Second Place, Ninth Keystip Tourney: The Problemist 1973.
Set Kd5 2.Sf6. Kf5 2.Sd6. D~,T~,cL~ 2.exd3. Dxd2+ 2.Sxd2. Lxf2+ 2.Sxf2.
1.exd3+! Kd5+ 2.gSe3(cSe3?) Kf5+ 2.cSe3 (2.gSe3?)
Set mates exploit two flights as double self-pins. Post-key, the changed mates are cross-checks and exploit triple self-pins. The key is itself the set mate for random moves of all three black pieces involved in the self-pins. (2011-8-2)
comment
Keywords: Brian Stephenson Collection (14494)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
Last update: Frank Müller, 2011-8-2 more...
59 - P1029682
Michael Lipton
The Problemist 1973
P1029682
(8+10)
#2

BS Problemid: 14576
Authors: Lipton, Michael
Sources:
Years: 1973
Michael Lipton: 1.Lc5? ~(Txc5)2.Lb3, (Lxc5)2.c8D. Dc6!
1.Ld4? ~(Txd4)2.Lb3, (Lxd4)2.Td8. b6/Df6 2.Ld5/Le6. Txc7!
1.Ld5? ~(Txd5)2.Le3, (Lxd5)2.Td8. Df6/Txc7 Lf6/Sxc7. Dxd5!
1.Lc4! ~(Txc4)2.Le3, (Lxc4)2.c8D. Dc6 2.Lb6.
Four Nowotnys from a half-battery. It also gives by-play. (2011-8-2)
comment
Keywords: Brian Stephenson Collection (14576)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
60 - P1030329
Michael Lipton
John M. Rice

StrateGems 2003
1. Preis
P1030329
(12+9)
#3

BS Problemid: 15230
Authors: Lipton, Michael
Rice, John M
Sources: The Problemist 2003
The Problemist 2002
The Problemist 2001
StrateGems 2002
Years: 2000
Michael Lipton: The source is 1st Prize, StrateGems, 2003. An earlier cited version in The Problemist (ML) required a Queen checking key on a3-f3.
1.f5! ~2.De3+,Kg2 3.Dxe4.
Td3 2.0-0 (~3.Se1) Td1 3.De3 (Txc3 3.Sd4)
Ld3 2.0-0-0 (~3.Se1) Lc2 2.Le2 (Sg3 3.Dxg3)
(Td1+ 2.Txd1 [~2.Se1,Sd4; La4/Le2+ 3.Lxe2)
Grimshaw to permit castling on each side in turn. (2011-8-2)
comment
Keywords: Brian Stephenson Collection (15230)
Genre: 3#
Input: Brian Stephenson, 2004-8-12
Last update: Frank Müller, 2011-8-2 more...
61 - P1035608
Michael Lipton
The Problemist 1951
P1035608
(5+2)
#2

BS Problemid: 20541
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1951
Michael Lipton: 1.e8=T, S~ 2.Ta8 oder 2.Te4; Se7, Se5, Sd4 2.Ta8(Te4?)
Sd8, Sb8, Sa7 2.Te4(Ta8?); Sa5! 2.Sc5; Sb4! 2.Sc3. Unfortunately, but unsurprisingly, anticipated (Michael Lipton 29-07-2011) (2011-7-29)
Gerald Ettl: siehe auch P1122722 (2014-8-27)
comment
Keywords: Brian Stephenson Collection (20541)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
62 - P1035695
Michael Lipton
The Problemist 1952
P1035695
(7+5)
#2

BS Problemid: 20628
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1952
Michael Lipton: Better with WLc3, BSb2, to avoid dual after flight.
1.Kxb7 Zzw Dh7+ 2.Ld7. Lf3+,De4+,Dg6 2.Lc6. Le2,Dd3,Df5 2.Lb5. Lb3(,Ka2) 2.Lxb3. Da2 2.Sc2. Lxa4 2.Txa4.
Six half-pin mates - two cross-checks, allowed by key. (2011-7-31)
comment
Keywords: Brian Stephenson Collection (20628)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
63 - P1035697
Michael Lipton
The Problemist 1952
P1035697
(7+5)
#2

BS Problemid: 20630
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1952
Michael Lipton: 1.Dc3 Zzw d5 2.Lxe6 e6 2.Lxd7 (d6/exf5/Dxc3/b4/Dc4,c5,c7 2.Dh8/Te8/Txc3/Dxc5/Dxc4,xc5,xc7.) Unusual interference unpins. (2011-7-31)
comment
Keywords: Brian Stephenson Collection (20630)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
64 - P1035816
Michael Lipton
The Problemist 1953
P1035816
(7+4)
#2

BS Problemid: 20751
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1953
Michael Lipton: 1.Txf3 ~2.Txh3. Lg3 2.Tf2. Dg2 2.Tf1. (Dxh7+ 2.Tf5, set 2.Lxf3. Dg3/Dxf3 2.Txg3/Lxf3)
Half-pin mates follow unpins of Rook f3 by each half-pinned piece. This can be shown with only nine pieces, either with a key 1.Df5-d5, or with a decent key but without the extra cross-chech unpin 1.Dxh7+. (2011-8-2)
comment
Keywords: Brian Stephenson Collection (20751)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
65 - P1036016
Michael Lipton
Al Hamishmar 1955
P1036016
(5+7)
#2
Michael Lipton: Set Sd6,cTd6 2.Sxe7. Se5 2.Df8. (1.Db5? Tc7!)
1.Dd5 ~2.Dd7. Sd6 2.Dxc6 (2.De6?) Ld6 2.De6 (2.Dxc6?) eTd6 2.Sxe7. cTd6 2.Db7. Se5 2.Dd8.
"One-way Herpai" dual avoidance: which piece does white capture, after black cuts their line of mutual guard? Related by-play and changes, including switched ambush. (2011-8-2)
comment
Keywords: Brian Stephenson Collection (20952)
Genre: 2#
Reprints: The Two-move Chess Problem: Trad. & Dev. 1966
Input: Brian Stephenson, 2004-8-12
Last update: Frank Müller, 2011-8-2 more...
66 - P1036055
Michael Lipton
The Two-move Chess Problem: Trad. & Dev. 1966
1. ehrende Erwähnung
P1036055
(8+7)
#2

BS Problemid: 20991
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1955
Michael Lipton: 1.Te2 ~2.(Sb5)~2.Te2, ~(Sb3) 2.Sbc3. Lxe2 2.c3 (2.c4? Tb3). Sxe2 2.c4 (2.c3? Txa4). (Kxe2 2.Sac3)
WP battery mates follow dual-avoiding flight-blocks. It would be much improved if mate on e1 were forced. (2011-8-2)
comment
Keywords: Brian Stephenson Collection (20991)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
Last update: Frank Müller, 2011-8-2 more...
67 - P1036072
Michael Lipton
The Two-move Chess Problem: Trad. & Dev. 1966
3. Preis
P1036072
(8+9)
#2

BS Problemid: 21008
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1955
Michael Lipton: Set Tb5 or Lxc2 2.Lxc6. Lb5 2.T3c5. Mutate (Zugwechsel)
1.Txc6 Zzw. Tb5 2.T6c5. Lb5 2.T2c5. Lxc2 2.Txc7.
(e5/S~/bL~/cxd6 2.Se7/Td2/Sxc7/Sb6)
Grimshaw mutate: Lb5 is changed due to self-pin and Bristol; Tb5, due to square-block and battery formation. 1..Lxc2 is changed to a further unpin. (2011-8-2)
comment
Keywords: Brian Stephenson Collection (21008)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
Last update: Frank Müller, 2011-8-2 more...
68 - P1036193
Michael Lipton
Die Schwalbe 1956
4. Preis
P1036193
(9+9)
#2

BS Problemid: 21130
Authors: Lipton, Michael
Sources: Chess Problems: Introduction to an Art 1963
The Two-move Chess Problem: Tradition and Development 1966
Years: 1956
Michael Lipton: This is a corrected version. The prizewinner proved unsound, undetected - in those pre-computer days - by composers, solvers and judges!
1.Se4? ~(b2) 2.Td4, ~(Sf6)Dd4. Db2 2.Sc3 (2.Sf6? Ke5). Dg7 2.Sf6 (2.Sb2? Ke5). Txf5!
1.Te4! ~2.Dd4. Db2 2.Td4 (2.Te5? Kd4). Dg7 2.Te5 (2.Td4? Ke5). (b2/Lc3/dxc5/Txe4 2.Db2/Da8/De5/dxe4)
Java dual avoidance, changed from try-play to key play. (2011-8-2)
comment
Keywords: Brian Stephenson Collection (21130)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
69 - P1036216
Michael Lipton
FIDE Album 1945-1955 1964
McWilliam Tourney 1956
1. Preis
P1036216
(10+8)
#2

BS Problemid: 21153
Authors: Lipton, Michael
Sources: FIDE Album (1945-1955) 1964
The Two-move Chess Problem: Tradition and Development 1966
Years: 1956
Michael Lipton: 1st Prize, McWilliam Tourney, 1956.
Set Lxf7+ 2.Ld3. Lxf3+ 2.Ld7.
1.Tg1! ~2.Tg5. Lxf7+ 2.Ld7. Lxf3+ 2.Ld5. Ke5 2.Dxf6.
Reciprocally changed cross-checks; flight-giving key. (2011-8-2)
comment
Keywords: Brian Stephenson Collection (21153)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
Last update: Frank Müller, 2011-8-2 more...
70 - P1036222
Michael Lipton
Probleemblad 1956
5. Lob
P1036222
(9+6)
#2

BS Problemid: 21159
Authors: Lipton, Michael
Sources: Chess Problems: Introduction to an Art 1963
The Two-move Chess Problem: Tradition and Development 1966
Years: 1956
Michael Lipton: Set dTg6,f6,e6/hTg6,/f6,e6 2.d8S/h8S.
1.Sg6? (~2.Sh8) dTxg6/hTxg6/Kxg6 2.d8S/h8S/Dxf5. Txh7!
1.Lf6? (~2.Te/Tgf8) dTxf6/hTxf6/Kxf6 2.d8S/h8S/Dxf5.Txd5!
1.Se6! (~[Txd7]2.Sg5, ~[Tg5, D..]2.Sd8]) dTxe6/hTxe6/Kxe6 2.d8S/h8S/Dxf5.

Three mates transferred in three phases (the transference counterpart of a 3x3 Zagoruyko). It is vital that moves of the BRs to the 'wrong' squares on the 6th rank, in each phase, are either illegal or do not allow the thematic mate. In the set play, all three moves of each BR on the sixth rank give the thematic mates; in tries and play, only one move by each BR does so (mate trsansference equivalent of Makihovi theme, so with black duals eliminated instead of white duals). 15 pieces.
5th commendation; thank you. (2011-8-2)
comment
Keywords: Brian Stephenson Collection (21159)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
71 - P1036281
Michael Lipton
American Chess Bulletin 1957
1. ehrende Erwähnung
P1036281
(9+7)
#2

BS Problemid: 21218
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1957
Michael Lipton: 1.Tc8? ~2.cS~. Ta8/Ta7/Ta5/Txa4/Ld8/Le7/Ld4/Le5 2.Sb8/Sxa7/Sxa5/Sb4/Sxd8/Sxe7/Scxd4/Scxe5 (Sxg3 2.Tc2) b5!
1.Th3! ~2.fS~. Th1/Tg1/Te1/Td1/Lh4/Lg5/Ld4/Le5 2.Sh2/Sxg1/Sxe1/Sd2/Sxh4/Sxg5/Sfxd4/Sfxe5 (Sc2 2.Txc2)
Different complete WS wheels in try and post-key play. (2011-8-2)
comment
Keywords: Brian Stephenson Collection (21218)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
72 - P1036305
Michael Lipton
Deutsche Schachzeitung 1957
1. Preis
P1036305
(9+7)
#2

BS Problemid: 21242
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1957
Michael Lipton: Set Dxb5 2.Sc5. Db8 2.eSc7. Dh8 2.Sg7. Dh5 2.Sg5. Dg3 2.Sg4.
1.eSxd4! ~2.Txe5. aSc3 2.Sc2. eSc3! 2.Sf5 (Sc2?) Sg3 2.Df3.
Radical change: five critical BQ errors (mousetrap theme) are replaced by arrival correction interference unpins. (2011-8-2)
comment
Keywords: Brian Stephenson Collection (21242)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
73 - P1036306
Michael Lipton
John M. Rice

10724 Die Schwalbe 11-12/1956
P1036306
(9+6)
#2

BS Problemid: 21243
Authors: Lipton, Michael
Rice, John M
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1957
Michael Lipton: 1.Dd8? (~2.Df6) Dxd6 2.Lxc5. Lxd6 2.Lxb6. Sc6!
1.Da4! ~2.Da1. Dxb4 2.Lxc5. Lxb4 2.Lxb6 (Sc4/La2 2.Td5/Dd1)
Mate transference of two unusual self-pins. Try underlines set play. (2011-8-2)
comment
Keywords: Brian Stephenson Collection (21243)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
Last update: Felber, Volker, 2013-1-10 more...
74 - P1036307
Michael Lipton
10896 Die Schwalbe 03-06/1957
G. Latzel gewidmet
P1036307
(6+4)
#2

BS Problemid: 21244
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1957
Michael Lipton: The problem was correctly published as: Michael Lipton, after Gerhard Latzel.
1.Se6? ~(Sc7) 2.Sf4 (2.Sg5? Kg3); ~(Lg4) 2.Sg5(2.Sf4? Kg3). Le2! (2.Sf4 Kxh2, 2.Sg5 Kg2).
1.Sd3? ~(Le2) 2.Sf2 (2.Sf4? Kh2); ~(Sc7) 2.Sf4(2.Sf2? Kxh2). Lg4! (2.Sf2 Kg2, 2.Sf4 Kg3).
1.Se4? ~(Lg4) 2.Sg5 (2.Sf2? Kg2); ~(Le2) 2.Sf2(2.Sg5? Kg2). Sc7! (2.Sg5 Kg3, 2.Sf2 Kxh2).
1.Sf3! ~(Le2) 2.Sg1, (Lxf3) 2.Th2.
Cyclic white TLL paired flight-guards on h2, g2 and g3 lead to three cyclic Java tries with cyclically separated double threats: each time, black defeats by closing the guard line that White cannot reach to mate. The key makes a competely different double threat, leaving WSc5 a spectator - but he is crucial to the try theme. (2011-8-3)
comment
Keywords: Brian Stephenson Collection (21244)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
Last update: Felber, Volker, 2013-1-12 more...
75 - P1036310
Michael Lipton
John M. Rice

10996 Die Schwalbe 07-09/1957
3. Preis
P1036310
(9+4)
#2

BS Problemid: 21247
Authors: Lipton, Michael
Rice, John M
Sources: Chess Problems: Introduction to an Art 1963
The Two-move Chess Problem: Tradition and Development 1966
Years: 1957
Michael Lipton: Set Dxf4 etc 2.d8S. Lg5 etc 2.Sbd4.
1.Sg6? Df4 etc 2.Sd8. Lg5 etc 2.Se5. Dc5!
1.Se6! Zzw. Df4 etc 2.Sd8. Lg4 etc 2.eSd4. (Dxe6/Dxd7 2.Txe6/Lb7)
The most economical of Zagoruyko half-pins, but its economy is sullied by white's eR (despite 1.Ta2? Dd4!) (2011-8-3)
comment
Keywords: Brian Stephenson Collection (21247)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
Last update: Felber, Volker, 2013-1-14 more...
76 - P1036336
Michael Lipton
John M. Rice

? 1957
2. ehrende Erwähnung
P1036336
(11+13)
#2

BS Problemid: 21273
Authors: Lipton, Michael
Rice, John M
Sources: Chess Problems: Introduction to an Art 1963
Years: 1957
Michael Lipton: Source: Gamage Memorial Tourney.
Award: 6th (not 2nd) hon. mention.
1.Lg3? ~2.f5. Sde3 2.Dc6(2.Dxe7?) Sce3 2.Dxe7(2.Dc6?) f5!
1.Dd4! ~2.f5. Sde3 2.De4(2.Dxf6?) Sce3 2.Dxf6(2.De4?) (f5/Sxf4/Sd6 2.Sg5/Sxf4/Lxd5)
Half-pin + interference unpin + dual avoidance, both in set play (underlined by the try 1.Lg3?) and post-key. I was recently alerted to a possible anticipation by Alberto Mari, but can't trace it in P. Feenstra Kuper's half-pin books. (2011-8-3)
comment
Keywords: Brian Stephenson Collection (21273)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
77 - P1036337
Michael Lipton
Il due Mosse 1957
P1036337
(11+6)
#2

BS Problemid: 21274
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
FIDE Album (1956-1958) 1961
Years: 1957
Michael Lipton: Set exd3 2.Lxg5,2.Ld6. exf3 2.Lf6,2.Lc5.
(1.Ta2 etc? Lf8!)
1.d6? exd3 2.Lxg5. exf3 2.Lf6. b5!
1.f6? exd3 2.Ld6. exf3 2.Lc5. L~! (2.Lxg5??)
1.Tb4! Zzw. exd3 2.Lc5. exf3 2.Lxg5.
Makihovi, with dual set-mates separated to the two tries, and 'split reciprocal change' from the tries to the post-key play. No award, so perhaps there's an anticipation; please send it if you know one. (2011-8-3)
comment
Keywords: Brian Stephenson Collection (21274)
Genre: 2#
Reprints: FIDE Album 1956-1958 1961
Input: Brian Stephenson, 2004-8-12
Last update: Frank Müller, 2011-8-3 more...
78 - P1036348
Michael Lipton

Israel Ringturnier
4. ehrende Erwähnung
P1036348
(5+5)
#2

BS Problemid: 21285
Authors: Lipton, Michael
Sources:
Years: 1957
Michael Lipton: Source: Israel Ring Tourney

1.Lg7? Dc1+/Dd1+/De1+/Lc3+/Lxg7/Ld4/Le5/Lf6(/Df1/Dxg1) 2.Dxc1/Dxd1/Dxe1/Lxc3/Dxg7/Lxd4/Lxe5/Lxf6(/Dxf1/Txg1). h2!
1.Dg7! ~2.Dxb2 Dc1+/Dd1+/De1+/Lc3+/Lxg7/Ld4/Le5/Lf6 2.Txc1/Txd1/Txe1/Dxc3/Lxg7/Dxd4/Dxe5/Dxf6
Eight changes (four after checks) from try to key play. (Also 1.Dh2? Df1/Dxh1 2.Txf1/Dxh1. Lxh8!) (2011-8-3)
comment
Keywords: Brian Stephenson Collection (21285)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
Last update: Frank Müller, 2011-8-3 more...
79 - P1036362
Michael Lipton
Probleemblad 1957
3. ehrende Erwähnung
P1036362
(9+8)
#2

BS Problemid: 21300
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1957
Michael Lipton: Set cTxc6 2.Td3. cTxe4 2.Tb5. eTxc6 Td7. eTxe4 2.Tf5.
1.Le3 Zzw cTxc6 2.Tb5. cTxe4 2.Td3. eTxc6 Tf5. eTxe4 2.Td7.
The first double reciprocal change, but less interesting than later settings by Livshits and Zappas. Set play underlined by 1.Lg3? Sxe4! (2011-8-3)
comment
Keywords: Brian Stephenson Collection (21300)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
80 - P1036364
Michael Lipton
Probleemblad 1957
5. ehrende Erwähnung
P1036364
(5+4)
#2

BS Problemid: 21302
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
FIDE Album (1956-1958) 1961
Years: 1957
Michael Lipton: Set Ka4 2.Kc3. Kc5 2.Kb3.
1.S~+? Kc4! 1.Sxd6+!? 2.Kc5!
1.Sa3+! Ka4 2.Kb2. Kc5 2.Kd3. (Kxa3 2.Ta1.)
White correction leads to changed WK mates from two batteries.
FIDE Album, 1956-58. (2011-8-3)
comment
Keywords: Brian Stephenson Collection (21302)
Genre: 2#
Reprints: FIDE Album 1956-1958 1961
Input: Brian Stephenson, 2004-8-12
Last update: Frank Müller, 2011-8-3 more...
81 - P1036367
Michael Lipton
John M. Rice

Problem 1957
P1036367
(6+6)
#2

BS Problemid: 21305
Authors: Lipton, Michael
Rice, John M
Sources: Chess Problems: Introduction to an Art 1963
The Two-move Chess Problem: Tradition and Development 1966
Years: 1957
Michael Lipton: Correct attribution is: John M Rice and Michael Lipton
(Set Kxc4 2.Dxd3) 1.Dc8 ~2.Dg8. cS~ 2.Txd3. Sb4! 2.Se3. Sd4!! 2.Sb6. (Kxc4 2.Dxc6)
Tertiary correction unpins. The changed flight is a stroke of luck. The position is a 'find': it made the composers happy. Its media death, however, suggests an anticipation: if you know one, please send it. (2011-8-3)
comment
Keywords: Brian Stephenson Collection (21305)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
82 - P1036437
Michael Lipton
American Chess Bulletin 1958
2. Platz
P1036437
(8+7)
#2

BS Problemid: 21376
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
FIDE Album (1956-1958) 1961
Years: 1958
Michael Lipton: 1.Sf6? Lc8-h3 2.Sfe4 Lg6 etc 2.Sfd7 (d3/d5 2.De3/Df8) dxe5!
1.Sf4? Lc8-h3 2.Sfd3 Lg6 etc 2.Sfe6 d3!
1.Se3? Lc8-h3 2.Sed3 Lg6 etc 2.Sed7 d3!
1.Dg6! Lc8-h3 2.Dxc2 Lxg6 2.Tc8 (d3/dxe5 2.Dg1/Dc6)
Four-phase focal Zagoruyko, but the same defence 1...d3 for two thematic tries is a defect.
FIDE Album 1956-8. (2011-8-3)
comment
Keywords: Brian Stephenson Collection (21376)
Genre: 2#
Reprints: FIDE Album 1956-1958 1961
Input: Brian Stephenson, 2004-8-12
Last update: Frank Müller, 2011-8-3 more...
83 - P1036441
Michael Lipton
British Chess Problem Society 1958
1. ehrende Erwähnung
P1036441
(4+6)
#2

BS Problemid: 21380
Authors: Lipton, Michael
Sources:
Years: 1958
Michael Lipton: Source: BCPS Ring Tourney 1958.
This is a substantially improved version by the judge (and great composer) Gustav Jönsson.
1.Kf8? f5/e5/e3 2.Dd4/Dg8/Dh1. c5! 2.Da8??
1.Kf7? c5 2.Da8. e5! 2.Dg8??
1.Kg7!? e5! 2.Dd4? 1.Kh7!? e3! 2.Dh1?
1.Dg7! Zzw. (f5)/e5/e3/c5 2.(Dd4)/Df7/Dg2/Db7.
1.Kf8? and 1.Kf8?, in turn, clear only one of the two needed WD lines to mate. The corrections 1.Kg7!? 1.Kh7!? clear both lines, but block others. So the key switches the WQ's approach, with four (alas, concurrent) changes. (2011-8-3)
Olaf Jenkner: 1.Kg7!? e5! 2.Dg8# (2011-8-3)
Michael Lipton: Sorry - that is right. 1.Kg7? f6! (2011-8-22)
Michael Lipton: Sorry - that is right. 1.Kg7? f5! (2011-8-22)
comment
Keywords: Brian Stephenson Collection (21380)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
84 - P1036474
Michael Lipton
V Il due Mosse 1958
1. Preis
P1036474
(8+8)
#2

BS Problemid: 21413
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1958
Michael Lipton: 1.Sf3? ~(b4)2.Lxd7 ~(L~)2.Le6 ~(d2) 2.Lf5 ~(T~)2.Sd2. Tb2!
1.Sf5! ~(b4)2.Sxd6 ~(L~)2.Lf3 ~(d2) 2.Le2 ~(T~)2.Ld1.
Fourfold complete Fleck in try and solution.
The diagram is the version in the book cited. The rizewinner ( in FIDE Album 1956-8) had WKc8, WPh3, minus Black Pawns d6, d7, making 1...Le6+ a complete defence post-key - but a horrid dual after the try 1.Sf3.
Alternative: W:Kc8; Td8; Ld7,g1; Sb1,d4; Pc5,e5. B:Kd3; Tc2; Pc4,e2,e4. 1.Sc6? Tb2! (1.La4? e1S!) 1.Se6! Saves three units but admits 2 parasitic (unforced) threats after 1.Sc6? (2.Le8/Lh3) post-key (2.Le8). No black move allows these hreats, hence no duals: the problem remains a total Fleck. One can even remove WPc5, with a Meredith: post-key, all black moves stop 2.Sc5, now another parasitic threat. (2011-8-3)
comment
Keywords: Brian Stephenson Collection (21413)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
Last update: Frank Müller, 2011-8-3 more...
85 - P1036475
Michael Lipton
Il due Mosse 1958
1. Preis
P1036475
(10+6) C+
#2
1. Sd4-f3? droht 2. Sf3-d2#, 2. Lg4-f5#, 2. Lg4-d7#, 2. Lg4-e6#
1. ... Tb3-b1,T~ 2. Sf3-d2#
1. ... d3-d2 2. Lg4-f5#
1. ... b5-b4 2. Lg4-d7#
1. ... Ld5xf7 2. Lg4-e6#
1. ... Tb3-b2!

1. Sd4-f5! droht 2. Lg4-d1#, 2. Lg4-e2#, 2. Sf5-d6#, 2. Lg4-f3#
1. ... Tb3-b1,T~ 2. Lg4-d1#
1. ... d3-d2 2. Lg4-e2#
1. ... b5-b4 2. Sf5-d6#
1. ... Ld5xf7 2. Lg4-f3#
1. ... Ld5-e6+ 2. Df7xe6#
play all play one stop play next play all
Michael Lipton: See comment on previous problem. (2011-8-3)
comment
Keywords: Brian Stephenson Collection (21414)
Genre: 2#
Computer test: Popeye 4.67
Reprints: 2077 Szachy 06/1959
42 FIDE Album 1956-1958 1961
Mat Plus 1994
Input: Brian Stephenson, 2004-8-12
Last update: Marcin Banaszek, 2017-12-21 more...
86 - P1036494
Michael Lipton

McWilliam Tourney 1958
2. Platz
P1036494
(8+4)
#2

BS Problemid: 21433
Authors: Lipton, Michael
Sources:
Years: 1958
Michael Lipton: Correct attrubution: 2nd Prize, McWilliam Tourney, 1958.
Set Tc1 2.Sc2. Th3 2.Sg3. Tf8 2.Sf6
(1.Kb8? ~2.Td6. Tf8 2.Sf6. Td3!)
1.Sc5! Zzw La2 2.Sb3. Lg8 2.Se6. Le2 2.Sd3. (Ld5 2.Tc8)

Total change: three critical shut-offs of Rook in the set play, and of Bishop post-key. Nasty post-key dual 1...Lf1. (2011-8-3)
comment
Keywords: Brian Stephenson Collection (21433)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
Last update: Frank Müller, 2011-8-3 more...
87 - P1036533
Michael Lipton
Barry Peter Barnes

Suomen Shakki 1958
P1036533
(10+7)
#2

BS Problemid: 21473
Authors: Lipton, Michael
Barnes, Barry Peter
Sources: Problem Observer 2002
FIDE Album (1956-1958) 1961
Years: 1958
Michael Lipton: Correct attribution: Barry Barnes and Michael Lipton, Suomen Shakki, 1958.
1.Df3A? ~2.Sed6. Kxc4 2.Db3B. bxc4 2.Dxf5. fxe4 2.Df7. Sf2 2.Se3. Sc3!
1.Db3B! ~2.Scd6. Kxe4 2.Df3A. bxc4 2.Db7. fxe4 2.Dxb5. Lxd4 2.Txd4 (set Dxd4). Se3,Sb2 2.Sc3.
Threat-flight sequence reversal, with symmetric self-blocks changed. (2011-8-3)
comment
Keywords: Brian Stephenson Collection (21473)
Genre: 2#
Reprints: FIDE Album 1956-1958 1961
Problem Observer 2002
Input: Brian Stephenson, 2004-8-12
Last update: Frank Müller, 2011-8-3 more...
88 - P1036567
Michael Lipton
American Chess Bulletin 1959
P1036567
(7+5)
#2

BS Problemid: 21507
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1959
Michael Lipton: 1.Tb3? ~2.Tb8. Dh8+ 2.Te8. Dh4+ 2.Te7. Dd1+ 2.Td4. Tb5 2.Ta4. Db1! (1.Ta3? e1D!)
1.Tb4! ~2.Tb8. Dh8+ 2.Tf8. Dh4+ 2.Tf6. Dd1+ 2.Td3. Tb5 2.Ta3.
Try and key lead to changes after three rear-unguard cross-checks and 1...Tb5. Mechanical, like many TT half-batteries. Unprovided checks matter little if all sensible moves (including the thematic try) deal with them. (2011-8-3)
comment
Keywords: Brian Stephenson Collection (21507)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
89 - P1036577
Michael Lipton
British Chess Problem Society 1959-1960
BCPS 50 JT
3. Preis
P1036577
(9+6)
#2

BS Problemid: 21517
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
FIDE Album (1959-1961) 1966
Years: 1959-1960
Michael Lipton: Source: 3rd Prize, British Chess Problem Society 50th Jubilee Tourney, 1959-60
1.Lb2? ~2.Sd4. cTxe6 2.Sxe1. eTxe6 2.Sc5. Dxe6!
1.Lc5? ~2.Sd4. eTxe6 2.Sb2. Dxe6 2.Sxe1. cTxe6!
1.Le3! ~2.Sd4. Dxe6 2.Sxe1. cTxe6 2.Sb2. (fxe6 2.Df8)
Cyclic mating permutation (Dreiliniensperre) v. self-pins. (2011-8-3)
comment
Keywords: Brian Stephenson Collection (21517)
Genre: 2#
Reprints: FIDE Album 1959-1961 1966
Input: Brian Stephenson, 2004-8-12
Last update: Frank Müller, 2011-8-3 more...
90 - P1036591
Michael Lipton
Die Schwalbe 1959
P1036591
(9+2)
#2

BS Problemid: 21531
Authors: Lipton, Michael
Sources:
Years: 1959
Michael Lipton: 2nd hon. mention. I prefer the reflected version, as published in Brian Stephenson's collection.
1.Lf5? Kxc7 2.d8S. Kxe7 2.d8D. b5!
1.Df2? Kxc7 2.Dxb6. Kxe7 2.Df6. b5!
1.Lb5! Kxc7 2.d8D. Kxe7 2.d8S.
Reciprocal change of promotion mates, plus Zagoruyko. Can anyone remedy the serious defect that both tries are defeated by the same move?
Completely anticipates S. Tkachenko, Uralski Problemist, 2004. (2011-8-3)
comment
Keywords: Brian Stephenson Collection (21531)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
91 - P1036595
Michael Lipton
Die Schwalbe 1959
2. ehrende Erwähnung
P1036595
(9+2)
#2
1. Le3-g5! (Zugzwang)
1. ... Ke8xf7 2. e7-e8=D,T#
1. ... Ke8xd7 2. e7-e8=S#
play all play one stop play next play all
Michael Lipton: Previous problem, reflected. I prefer this reflection, so delete last entry. (2011-8-3)
comment
Keywords: Brian Stephenson Collection (21535), Promotion, under-promotion
Genre: 2#
Computer test: %Popeye FreeBSD-4.3-RELEASE-32Bit-Version 3.75
Reprints: The Two-move Chess Problem: Trad. & Dev. 1966
13 Problemkiste (66) 12/1989
Input: Brian Stephenson, 2004-8-12
Last update: Alfred Pfeiffer, 2018-5-9 more...
92 - P1036596
Michael Lipton
72 Die Schwalbe 05-08/1959
3. ehrende Erwähnung
P1036596
(10+3)
#2

BS Problemid: 21536
Authors: Lipton, Michael
Sources:
Years: 1959
Michael Lipton: See solution in Brian Stephenson's database. This version seems to me to be inferior to the other. (2011-8-3)
comment
Keywords: Brian Stephenson Collection (21536)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
Last update: Frank Müller, 2011-8-3 more...
93 - P1036607
Michael Lipton
Il due Mosse 1959
P1036607
(7+5)
#2

BS Problemid: 21547
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1959
Michael Lipton: (Set Dc1,De1 2.Dxd3. 1.cS~? Dxa2!)
1.T2xd3? Dc1,e1 2.T3d4. Dd1 2.Tc3. Sxd5 2.Dxd5. Dc2!
1.Sxd3! Zzw Dc1 2.Se5. De1 2.Sxb2. Sxd5 2.De4. Dc2/Dxd3+ 2.Txc2/Dxd3.
Self-pin of WT (try) and WS (key) each induces two unpins and an extra change. Duals after careless black moves are the cost of showing this in Meredith. (2011-8-3)
comment
Keywords: Brian Stephenson Collection (21547)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
94 - P1037150
Michael Lipton
Al Hamishmar 1953
P1037150
(8+10)
#2

BS Problemid: 22098
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1953
Michael Lipton: 1.Dd3 ~2.Dc4. Sd6 2.Sxf4 (2.Scx7?) Se5 2.Sxc7(2.Sxf4?) (Kxe6/Ld1 2.Df5/De4) Mutual-guard-cut (one-way) Herpai, with dual avoidance by black self-unpin, and a flight. (2011-8-3)
comment
Keywords: Brian Stephenson Collection (22098)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
95 - P1037161
Michael Lipton

P1037161
(6+7)
#2

BS Problemid: 22109
Authors: Lipton, Michael
Sources:
Years: 1955
Michael Lipton: 1.Bd8 ~ 2.Dh7. Te4 2.Kxf5. Le4 2.Kxe5. Sg3 2.Kg7.
Black self-unpins as Grimshaw to allow WK mates. (2011-8-1)
comment
Keywords: Brian Stephenson Collection (22109)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
96 - P1039850
Michael Lipton
Problem 1963
P1039850
(12+9)
#2

BS Problemid: 24806
Authors: Lipton, Michael
Sources:
Years: 1963
Michael Lipton: 1st hon. mention, so presumably sound, but (as per Meson) COOK 1.Te6+ as diagrammed. Presumably + black Pawn d7 (12+10). Then:
Set Kd4 2.Txe4. Kxf6 2.Sxe4.
1.Lg8? Kd4+ 2.Sb5. Kxf6+(or Kxf4+) 2.Sd5. Txf4!
1.Lxc4! ~2.Sd5. Kd4+(or Kxf4+) 2.~Sd5. Kxf6+ 2Sb5. Txf6 2.Txe4. Zagoruyko for flights, which between try and key yield reciprocally changed cross-checks. (2011-8-3)
comment
Keywords: Brian Stephenson Collection (24806)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
97 - P1039868
Michael Lipton
Problemnoter 1960
Lob
P1039868
(9+6)
#2

BS Problemid: 24824
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1960
Michael Lipton: 1. Ra8 # 2. Ra4. Reciprocal change after unpins 1...Qxb7, 1...Qxb1. Mechanical and symmetrical, but new then, I think. (2006-11-23)
Michael Lipton: I was wrong! It turns out to be anticipated by M. Mylliniemi, in an almost identical setting. Please delete and substitute MM's version. (2011-8-1)
comment
Keywords: Brian Stephenson Collection (24824)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
98 - P1040108
Michael Lipton
The Tablet 1961
nach J. R. Hoole
P1040108
(5+5)
#2

BS Problemid: 25065
Authors: Lipton, Michael
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1961
Michael Lipton: Source: Michael Lipton (after J. R. Hoole), The Tablet, 1961.
1.g3, ~2.Df4. S~ 2.Lxd3. Sb5! 2.Lb7. Sc4! 2.Td4.
Ten-piece black correction with two 'four-way' variations: general defence: opens black line; general error: opens white line; secondary defence: closes white line; secondary error: closes black line. (2011-8-3)
comment
Keywords: Brian Stephenson Collection (25065)
Genre: 2#
Input: Brian Stephenson, 2004-8-12
Last update: Frank Müller, 2011-8-3 more...
99 - P1042010
Michael Lipton
Hermann Albrecht


1. Preis
P1042010
(9+8)
#2

BS Problemid: 26973
Authors: Lipton, Michael
Albrecht, Hermann
Sources: The Two-move Chess Problem: Tradition and Development 1966
Years: 1958
Sally: (FIDE) Piran 1958, 1. Preis.
Satz:1.-Sde5,2.Sg5#.(und nicht 2. Sd2?), 1. -Sge5,2.Sd2#
(und nicht Sg5?)
1. Lxd4 (droht 2. De3#) - Sdf4, 2. Sg5#(und nicht Sd2?)
1. -Sgf4,2.Sd2# (und nicht 2.Sg5?)
Paradewechsel mit Dualvermeidung. (2010-6-9)
comment
Keywords: Brian Stephenson Collection (26973)
Genre: 2#
Reprints: Schach-Echo 13-14, p. 224, 07/1982
Input: Brian Stephenson, 2004-8-12
Last update: Felber, Volker, 2015-12-16 more...
100 - P1042792
Michael Lipton
British Chess Magazine 1985
P1042792
(5+2)
#3

BS Problemid: 27759
Authors: Lipton, Michael
Sources:
Years: 1985
Michael Lipton: Three Brede cross-checks, changed from try to key by half-battery, in miniature. The defeat to the try is not quite as obvious as it looks, but still crude (Michael Lipton 29-07-2011]

1.Ta6? ~ 2.Td8#, 2.Tb5. De7+ 2.Te5+ Db7 3.Te8. Db4+ 2.Td2+ Db7/(De4+) 3.Td8/(Lxe4). Db1+ 2.Td1 Db7(De4+) 3.Td8 (Lxe4). 1...Dxa6! 2.Td7+ Dc6 3.Lxc6 but 2...Db7!

1.Ta5! ~ 2.Tc8#, 2.Tb6. De7+ 2.Te6+ Db7 3.Te8. Db4+ 2.Tc3+ Db7/(De4+) 3.Tc8/(Lxe4). Db1+ 2.Tc1 Db7(De4+) 3.Tc8 (Lxe4). (2011-7-29)
Michael Lipton: Three Brede cross-checks, changed from try to key by half-battery, in miniature. The defeat to the try is not quite as obvious as it looks, but still crude (ML 29-07-2011)

1.Ta6? ~ 2.Td8#, 2.Tb5. De7+ 2.Te5+ Db7 3.Te8. Db4+ 2.Td2+ Db7/(De4+) 3.Td8/(Lxe4). Db1+ 2.Td1 Db7(De4+) 3.Td8 (Lxe4). 1...Dxa6! 2.Td7+ Dc6 3.Lxc6 but 2...Db7!

1.Ta5! ~ 2.Tc8#, 2.Tb6. De7+ 2.Te6+ Db7 3.Te8. Db4+ 2.Tc3+ Db7/(De4+) 3.Tc8/(Lxe4). Db1+ 2.Tc1 Db7(De4+) 3.Tc8 (Lxe4). (2011-7-29)
comment
Keywords: Brian Stephenson Collection (27759)
Genre: 3#
Input: Brian Stephenson, 2004-8-12
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