Problem Display
PID: 176558 (2brNbRr/1PPBp1nR/4n3/2P1KpPP/3P1PkB/5N1p/2Q1P3/8 w - f5 0 1)

Benedek, Attila

Schach-Echo, 1974

2brNbRr/1PPBp1nR/4n3/2P1KpPP/3P1PkB/5N1p/2Q1P3/8

#2

16 + 10


6490 yacpdb 2018

SOLUTION


  • SOUND
  • Sets
    • 1...Sxh5
      • 2.Qxf5#
    • 1...Sxe8
      • 2.Qxf5#
  • Keys
    • 1.gxf5 ep!
      • threat
        • 2.Qf5#
        • 2.Qg6#
      • 1...exf6+
        • 2.Sxf6#
      • 1...Rxd7
        • 2.Qf5#
      • 1...Rxg8
        • 2.Qg6#
      • 1...Bxd7
        • 2.Qf5#
      • 1...h2
        • 2.Qf5#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • S(f);N_GUARD,XP(J)::QAB1(A),XP(c)
    • S(f);N_GUARD,XS(O)::QAB1(A),XP(c)
  • Actual
    • P(I);EP,P_PINS(d),XP(c)
    • Threat
      • DUALS(2)
    • Vars
      • P(e);CHECK,XP(I)::S(O),XP(e)
      • R(h);N_SPINS(d),P_SPINS(f),XB(M)::QAB1(A)
      • R(j);XR(P)::QAR2(A)
      • B(g);N_SPINS(d),P_SPINS(f),XB(M)::QAB1(A)
      • P(a);::QAB1(A)


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).