Monday, March 30, 2009

Theme Stavrinides

The composer Alkis Stavrinides was born in Cyprus in 1947 and lives in the United Kingdom since 1967.
Byron Zappas writes in his book that he has cooperated with mr Stavrinides.
I have found in the Internet some problems by Stavrinides, which have presented the Theme Stavrinides around 1968.

Theme Stavrinides : The (compact algebraic) notation of white and black moves shows circular transposition.
Theme shown in one phase : 1. K!, 1...Aaa 2. Bbb#, 1...Bbb 2. Ccc#, 1...Ccc 2. Aaa#
Theme shown in tries : 1. Aaa? Bbb!, 1. Bbb? Ccc!, 1. Ccc? Aaa!


Let us see now some problems presenting the Theme Stavrinides.


(Problem 325)
A. Stavrinides,
British Chess Problemists Society (BCPS), 1968
Mate in 2.
#2 ( 8 + 7 )
[1SRB4/p2KP3/Q1S5/2kp4/2p5/2qP4/s2b4/8]


Tries : [1. Bb6+? / Qb6+ axb6!], [1. Sd4+? Kxd4!], [1. Qb5+? Kxb5!], [1. Qxa7+? Kb5!], [1. Qa5+? Qxa5!], [1. d4+? Qxd4!].

Key : 1. Qa4! ( > 2. Sa6#)
Watch now the cyclic transposition in the three variations :
1...Sb4 2. Qa5#
1...Qa5 2. d4#
1...d4 2. Sb4#


(Problem 326)
A. Stavrinides,
Probleemblad, 1969
Mate in 2.
#2 ( 6 + 5 )
[4Q3/8/3p2K1/5S2/4pkp1/8/4PqP1/B7]


A nice Meredith with cyclic transposition of the theme in four variations :

Tries : [1. Qxe4+? Kxe4!], [1. Qe5+? dxe5!], [1. Be5+? dxe5!], [1. Qe6? / Bg7? / Bf6? g3!], [1. Qe7? e3!], [1. g3+? / e3+? Qxe3!].

Key : 1. Qh8! ( > 2. Qh6#)
1...Qh4 2. e3#
1...e3 2. Qd4#
1...Qd4 2. g3#
1...g3 2. Qh4#


(Problem 327)
M. Stosic,
Arbeijder Skak, 1970,
Mate in 2.
#2 ( 13 + 9 )
[1S2K3/3R4/Bp2PP1P/1pkp2BR/b7/P2P4/1P1bS1s1/2q2r2]


Tries : [1. Rxd5+? Kxd5!], [1. Rc7+? Kd6!], [1. Bb7? b4!], [1. Bxd2? Qc4!], [1. Be3+? Sxe3!], [1. Bf4? Sxf4!], [1. d4+? Kc4!], [1. b4+? Bxb4!].

Key : 1. Ke7! ( > 2. Rc7#)
1...b4 2. d4
1...d4 2. Bf4
1...Bf4 2. b4


(Problem 328)
Jozef Taraba,
Europe Echecs, 1975,
Mate in 2.
#2 ( 9 + 6 )
[8/2Bp1R2/5S1K/Q1S1pkp1/1Rb5/2s3P1/1p2P3/8]


Tries : [1. Sd5+? / Sh5+? / Sh7+? / Sg8+? / Se8+? / Sxd7+? Kg4!], [1. Se6? Kxe6!], [1. Rxc4? Se4!], [1. e4+? Sxe4!], [1. g4+? Kf4!], [1. e3? Bxf7!].

Key : 1. Qa8! ( > 2. Qf3#)
1...Sxe2 2. Qe4#
1...Se4 2. Qxe4#
1...Bxe2 2. Sf6-d5,g4,h5,h7,g8,e8,d7#
1...Bd5 2. Sxd5# / 2. g4# (dual)
1...d5 2. Qc8#
and the three thematic variations...
1...Sd5 2. e4#
1...e4 2. g4#
1...g4 2. Sd5#

(Problem 329)
W. Piltschenko,
Themes 64, Jan-March 1981,
Mate in 2.
#2 ( 12 + 4 )
[8/1K6/6P1/1Sk2B2/P2RPr2/2S2P2/2b2sQ1/2R3B1]


Tries : [1. Rc4+? Kxc4!], [1. Rxc2? Rxf3!].

Key : 1. Qg5! ( > 2. Qe7#)
Here the three thematic variations show black and white captures on the same square.
1...Bxe4+ 2. Sxe4#
1...Sxe4 2. Rxe4#
1...Rxe4 2. Bxe4#


(Problem 330)
Vaclav Kotesovec,
First Honourable Mention, Probleemblad, 2002-3,
Mate in 2.
#2 ( 7 + 9 ) Grasshoppers ( 4 + 5 )
[gK6/8/3p2q1/3pg3/G2p3g/R2G4/Gg5R/k1G5]


Tries : [1. Ga2-c2+? Ga8xa3!], [1. Kb8xa8? Ka1-b1!].

Key : 1. Rh1! (zugzwang).
1...Ga8xa3 2. Gc1xa3#
1...Ga8-e4 2. Ga2-c2#
1...Ka1-b1 2. Gc1-a1#
And now we see the Theme Stavrinides with circular transposition in seven variations.
1...Gg6-c2 (Gc2) 2. Gc1-c3# (Gc3)
1...Ge5-c3 (Gc3) 2. Gc1-c4# (Gc4)
1...Gh4-c4 (Gc4) 2. Gc1-c5# (Gc5)
1...Ge5-c5 (Gc5) 2. Gc1-c6# (Gc6)
1...Gg6-c6 (Gc6) 2. Gc1-c7# (Gc7)
1...Ge5-c7 (Gc7) 2. Gc1-c8# (Gc8)
1...Ga8-c8 (Gc8) 2. Ga2-c2# (Gc2)

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