## Thursday, February 19, 2009

### Nikos Pergialis (4)

In this post we present two direct-mate problems by "the last rembetis" Nikos Pergialis, and a prized helpmate problem by Harry Fougiaxis.

 (Problem 314)Nikos Pergialis, original, 2001,Mate in 2. #2 ( 6 + 6 ) [5b1K/5R2/5B1k/4R2r/4bS2/6s1/6r1/6Q1]

Comment by the composer : "I feel pleasure when I sacrifice powerful pieces. This is an Aristocratic (without pawns) problem showing double valve”.

Tries : [1 Rh7+? Bxh7!], [1 Bg5+? Rxg5!], [1 Bg7+? Bxg7+!], [1 Rxe4? Bg7+!], [1 Rxh5+? Sxh5!], [1 Rf5? Bxf5!].

Key : 1 Qc5! ( > 2 Qxf8#)
1...Rg5 2 Bxg5#
1...Se2 / Sf1 / Sh1 2 Rxh5#
1...Sf5 (corrects the abandonment of the bRh5) 2 Rh7#
1...Bxc5 / Bd6 / Be7 2 Bg7#
1...Bg7+ (corrects the abandonment of g7) 2 Bxg7#

 (Problem 315)Nikos Pergialis, original, 2008,Mate in 2. #2 ( 5 + 7 ) [8/2p5/K5p1/1BkpQs2/8/Ps1r4/1P6/8]

Set play : (*) 1...Sfd4 2 Qe7#

Try : [1 Qxc7+? Kd4!]

Key : 1 Qf4! ( > 2 Qb4#)
1...d4 2 Qe5# (switchback)
1...Sfd4 2 Qf8# (changed mate)
1...Sbd4 2 b4#
1...Rd4 2 Qxc7#

The square d4 is four-ways self-blocked.

 (Problem 316)Harry Fougiaxis, First Prize, Israel Ring Tourney, 1985, Helpmate in 2. a) diagram, b) twin with bPd6-->b5h#2 a) Diagram, b) bPd6-->b5 ( 10 + 11 ) [8/7r/PPkp4/2SSr1p1/pq2s3/bPs5/2Q2PB1/2R1Kb2]

Relevant verses by Nikos Pergialis, the last rembetis :
Yia'ssou re Ha'rry Fougiaxi' / me ta voithitika' sou, / ta magika' kopsi'mata / ke ta karfo'mata' sou!
(Hello Harry Fougiaxis) / (with your helpmates), / (the magical capturings) / (and your pinnings)!.

a)
Key : 1 Qb4xc5! (unpins Sb3, bQ will be pinned at the arrival square)
1...Qc2xe4 (pins itself)
2 Sc3-e2 (unpins wQ, pins the previously moved bQ, does not guard a4 anymore)
2...Qe4xa4# (wQ went initially to a square of the file where bK lies, and then delivered mate from the perpendicular row).

b) bPd6-->b5
Key : 1 Re5xd5! (unpins Se4, bR will be pinned at the arrival square)
1...Qc2xc3 (pins itself)
2 Se4-d2 (unpins wQ, pins the previously moved bR, does not guard f6 anymore)
2...Qc3-f6# (wQ went initially to a square of the diagonal where bK lies, and then delivered mate from the perpendicular diagonal).