Problem Display
PID: 60971 (b1rbq3/B7/3P4/2p5/p1B1kPPP/2Rp1NK1/1n1PrP2/7Q w - - 0 1)

Petkov, Petko Andonov

2nd Prize, Shakhmatna misl, 1978

b1rbq3/B7/3P4/2p5/p1B1kPPP/2Rp1NK1/1n1PrP2/7Q

#4

12 + 10


3750 FIDE Album (1977-1979) 1984
3840 Petkov Selected Compositions 2000
133 The Problemist Supplement 2005

SOLUTION


  • SOUND
  • Keys
    • 1.Ba2!
      • threat
        • 2.Se1+
          • 2...Kd4
            • 3.Rxd3+
              • 3...Sxd3
                • 4.Sc2#
      • 1...Rxd2
        • 2.Qe1+
          • 2...Re2
            • 3.Qxe2+
              • 3...dxe2
                • 4.Re3#
      • 1...Rxf2
        • 2.Qe1+
          • 2...Re2
            • 3.Qxe2+
              • 3...dxe2
                • 4.Re3#
      • 1...Qb5
        • 2.Sg5+
          • 2...Kd4
            • 3.Qe4+
              • 3...Rxe4
                • 4.Sf3#
              • 3...Bxe4
                • 4.Se6#
      • 1...Qg6
        • 2.Se5+
          • 2...Kd4
            • 3.Sc6+
              • 3...Rxc6
                • 4.Qd5#
              • 3...Bxc6
                • 4.Bxc5#

FEATURES


NOT CLASSIFIED


Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).