Problem Display
PID: 236977 (8/1p3Npp/R1b3k1/4P2p/4R2P/4pQ2/2n5/7K w - - 0 1)

Cuppini, Alessandro

Szachy, 1976

8/1p3Npp/R1b3k1/4P2p/4R2P/4pQ2/2n5/7K

#2

7 + 8


15148 Sadier Collection 2021

SOLUTION


  • SOUND
  • Sets
    • 1...b5
      • 2.Rxc6#
  • Keys
    • 1.Rf4!
      • threat
        • 2.Qg2#
        • 2.Qe4#
      • 1...bxa6
        • 2.Qxc6#
      • 1...h6
        • 2.Qe4#
      • 1...Se1
        • 2.Qe4#
      • 1...Sd4
        • 2.Qg2#
      • 1...b6
        • 2.Qxc6#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • P(f);N_GUARD::R(F),XB(d)
  • Actual
    • R(C);P_SPINQ(B)
    • Threat
      • DUALS(2)
    • Vars
      • P(f);N_GUARD,N_SPINB(d),XR(F)::QAR(B),XB(d)
      • P(h);::QAB(B)
      • S(a);::QAB(B)
      • S(a);::QAR(B)
      • P(f);N_GUARD,N_SPINB(d)::QAR(B),XB(d)


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).