Good old times 3


The third selection motivated by old magazines continues listing somehow interesting problems based on study of feenschach issue 86 (dated January - March 1988).


Venelin Alaikov
dedicated to Peter Kniest - 70
1st HM feenschach 1984

1.Ra1! th. 2.Ba3+ Ka4 3.Rd5 zz Rxd7 4.Bd6+ Bxa1 5.Rd4+ Bxd4#
1...R~ 2.Bc3+ Bxc3 3.Rb5+ Kc4 4.Rd5+ Kb4 5.Rd4+ Bxd4#
1...Rxd7 2.Ba3+ Ka4 3.Bb5+ Ka5 4.Be2+ Ka4 5.Bd1+ Rxd1#

Black correction in the fivemove selfmate! Note also the reappearance of threat 2nd move after the correcting defence, albeit with different continuation. Very airy construction for such seemingly difficult theme.









s#5 (10+7)

Petko A. Petkov
1st Prize Mat 1981

1.Qd5! th. 2.Rc2+ Qxd5 3.Sd2+ Qxd2 4.Rxb2+ Qxb2#
1...Q~ 2.Rd4+ Bxd5 3.Bc4+ Bxc4 4.Rd3+ Bxd3#
1...Qc8! 2.Rab4+ Kxa3 3.Rc3+ Qxc3 4.Qa2+ Bxa2#
1...Qxd5 2.Rcb4+ Kc3 3.Rb3+ Kxb3 4.Bd1+ Qxd1#

Another rendering of the black correction theme, this time with the black Queen correcting its defence. There is one further queen defence - it is interesting to think about its nature, whether it is or is not the correction also. In any case, there are 4 different mates in the threat and 3 variations.









s#4 (10+7)

Gerard Smits
Prize U.S. Problem Bulletin 1982

1.Bc6! th. 2.Rb4+ axb4 3.Bb5#
1...exd6(Bc1)+ 2.Bxb2(b7) th. 3.Rd4#
     2...bxa6(a2)+ 3.axb3(b7)#
     2...bxc6(Bf1)+ 3.Bxd3(d7)#
     2...Sxc6(Bf1) 3.Bxd3(d7)#
1...exf6(Sg1)+ 2.Sxf3(f7) th. 3.Rd4#
     2...fxe6(e2)+ 3.exd3(d7)#
     2...fxg6(Qd1)+ 3.Qxb3(b7)#
     2...Sxc6(Bf1) 3.Bxd3(d7)#

2x2 circe-typical cross-checks following two checking defences in the first black moves. This everything is introduced by check-provoking key. The scheme itself is rather dry, but well using possibilities of Circe.









#3 (11+13)
Circe

Raffi Ruppin
1st Prize 170th TT Die Schwalbe 1985

1.f1R Sd5 2.Rd2 Sxb4#

1.f1B Sg4 2.Sd2 Se5#

1.f1S Se4 2.Qd2 Sc5#

The fairy condition requires Black to mate if he can. Therefore to allow white mate, Black has to act very carefully. Blocking d2 immediately would result in Kd4#, Qe4# or Qxf4#. Also, the choice of promotion of motivates choice of white continuation, as White has to cope with possible mates Rxf4#, Bh3# and Sg3#. Fine analogy.









h#2 (5+11)
Black Reflex Mate
3.1.1.1

Hemmo Axt
3rd Prize feenschach 1984

1.Qh5! th. 2.Sdb4+ axb4 3.Rxe3+ Kxe3 4.Qxh6+ Kd3 5.Qd2+ cxd2#
1...Be6 2.Bf5+ Bxf5 3.Qxf5+ Ke2 4.Qf2+ Kd3 5.Qd2+ exd2#, cxd2#
1...Se6,Sg6 2.Sf4+ Sxf4 3.Rxc3+ Kxc3 4.Qxa5+ Kd3 5.Qd2+ exd2#

Although it does not seem likely in the initial position and yet after the key, there are two variations and the threat all ending by wQ's sacrifice at d2. All roads lead to Rome...









s#5 (12+11)

Petko A. Petkov
dedicated to Peter Kniest - 70
1st Prize feenschach 1984

1.Sec4! th. 2.Rc8+ Kd5 3.Sd2+ Kd6 4.Se4+ Sxe4 5.Bc5+ Sxc5 6.Sb7+ Sxb7#
1...Qxf3 2.Rc7+ Kd5 3.Qg8+ Sxg8 4.Se3+ Kd6 5.Sf5+ Qxf5 6.Rd7+ Qxd7#
1...Re1 2.Rd5+ Kxd5 3.Re5+ Rxe5 4.Sa3+ Kd6 5.Sb5+ Rxb5 6.Bb8+ Rxb8#

Ecellent cooperation of two white batteries. Battery Ba7-Rc5 plays in the 2nd moves, Siers battery Bb3-Sc4 afterwards.









s#6 (12+6)

Comments to Juraj Lörinc.
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