Problem Display
PID: 172103 (3R4/2B1p1p1/1rb1kpP1/1N1nP3/2Q2R2/qn1Np3/Bb6/7K w - - 0 1)

Apro, Laszlo

Tijdschrift vd KNSB, 1952

3R4/2B1p1p1/1rb1kpP1/1N1nP3/2Q2R2/qn1Np3/Bb6/7K

#2

10 + 11


6490 yacpdb 2018

SOLUTION


  • SOUND
  • Sets
    • 1...Bxb5
      • 2.Qxd5#
    • 1...Be8
      • 2.Qxd5#
  • Keys
    • 1.Qe4!
      • threat
        • 2.Qf5#
      • 1...Sxf4
        • 2.Sxf4#
      • 1...Sxc7
        • 2.Sxc7#
      • 1...Sd4
        • 2.exf6#
      • 1...Sc3
        • 2.Sd4#
      • 1...Sb4
        • 2.Sc5#
      • 1...f5
        • 2.Qxf5#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • B(g);N_GUARD,XS(F)::QAB1(D),XS(e)
    • B(g);N_GUARD::QAB1(D),XS(e)
  • Actual
    • Q(D);N_PINS(e)
    • Threat
      • QAB1(D)
    • Vars
      • S(e);P_PINQ(D),P_SPINS(c),XR(E)::S(C),XS(e)
      • S(e);P_PINQ(D),P_SPINS(c),XB(I)::S(F),XS(e)
      • S(c);P_SPINS(e),S_CUTB(a)::QAR(D)+P(G),XP(i)
      • S(e);P_PINQ(D),P_SPINS(c),S_CUTB(a)::S(F)
      • S(e);P_PINQ(D),P_SPINS(c),S_CUTQ(b)::S(C)
      • P(i);::QAB1(D),XP(i)


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).