Problem Display
PID: 209151 (5Q2/3pp3/8/2bpkN2/6K1/2pp4/8/8 w - - 0 1)

Giegold, Fritz Emil

Deutsche Schachblatter, 1930

5Q2/3pp3/8/2bpkN2/6K1/2pp4/8/8

#2

3 + 7


15148 Sadier Collection 2020

SOLUTION


  • SOUND
  • Sets
    • 1...Bg1
      • 2.Qxe7#
    • 1...Bf2
      • 2.Qxe7#
    • 1...Be3
      • 2.Qxe7#
    • 1...Bd4
      • 2.Qxe7#
    • 1...Bb6
      • 2.Qxe7#
    • 1...Ba7
      • 2.Qxe7#
    • 1...d6
      • 2.Qxe7#
  • Keys
    • 1.Sd4!
      • threat
        • 2.Qf4#
      • 1...Kxd4
        • 2.Qf4#
      • 1...Ke4
        • 2.Qf4#
      • 1...Kd6
        • 2.Qb8#
      • 1...Bxd4
        • 2.Qxe7#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • B(c);N_GUARD::QAR2(C),XP(g)
    • P(f);S_CUTB(c)::QAR2(C),XP(g)
  • Actual
    • S(B);
    • Threat
      • QAB1(C)
    • Vars
      • K(e);S_FLIGHT,XS(B)::QAR2(C)
      • K(e);P-FLIGHT::QAR1(C)
      • K(e);P_SPINP(g),S_FLIGHT::QAB(C)
      • B(c);N_GUARD,SBLOCK,XS(B)::QAR2(C),XP(g)


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).