MESON Chess Problem Database

Problem Display
PID: 215690 (4N2Q/8/4p1K1/2p3n1/2p1kppB/4pN2/2P1b3/8 w - - 0 1)

Kondelik, Karel

Deutsche Schachzeitung, 1882

4N2Q/8/4p1K1/2p3n1/2p1kppB/4pN2/2P1b3/8

#2

6 + 9

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qb2?
      • threat
        • 2.Qb7#
      • 1...Kd5
        • 2.Qb7#
      • 1...Bxf3
        • 2.Sf6#
      • 1...Sxf3
        • 2.Sf6#
      • 1...gxf3
        • 2.Sf6#
      • 1...Kxf3!
  • Keys
    • 1.Qa1!
      • threat
        • 2.Qa8#
      • 1...Kxf3
        • 2.Qh1#
      • 1...Kd5
        • 2.Qa8#
      • 1...Bxf3
        • 2.Sf6#
      • 1...Sxf3
        • 2.Sf6#
      • 1...gxf3
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);
      • Threat
        • QAB(F)
      • Vars
        • K(d);S_FLIGHT::QAB(F)
        • B(a);SBLOCK,XS(B)::S(E)
        • S(h);SBLOCK,XS(B)::S(E)
        • P(f);SBLOCK,XS(B)::S(E)
      • Refutation
        • K(d);S_FLIGHT,XS(B)
  • Actual
    • Q(F);
    • Threat
      • QAB(F)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XS(B)::QAB(F)
      • K(d);S_FLIGHT::QAB(F)
      • B(a);SBLOCK,XS(B)::S(E)
      • S(h);SBLOCK,XS(B)::S(E)
      • P(f);SBLOCK,XS(B)::S(E)
HTML5 logo

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).