MESON Chess Problem Database

Problem Display
PID: 214774 (8/3N4/4P1P1/3k4/K2N2p1/3p2P1/3P1Q2/8 w - - 0 1)

Anonymous

Detroit Free Press, 1878

8/3N4/4P1P1/3k4/K2N2p1/3p2P1/3P1Q2/8

#2

8 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qf5+?
      • 1...Kc4
        • 2.Qc5#
      • 1...Kd6
        • 2.Qc5#
      • 1...Kxd4!
  • Keys
    • 1.Sb5!
      • 1...Kc4
        • 2.Sb6#
        • 2.Qd4#
        • 2.Qc5#
      • 1...Ke4
        • 2.Sc3#
      • 1...Kc6
        • 2.Qg2#
      • 1...Kxe6
        • 2.Qf7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT::QAR1(B)
        • K(c);OGATE,P-FLIGHT::QAB1(B)
      • Refutation
        • K(c);P-FLIGHT,XS(E)
  • Actual
    • S(E);
    • Vars
      • K(c);S_FLIGHT::S(E)
      • K(c);S_FLIGHT::QAB(B)
      • K(c);OGATEB,S_FLIGHT,XP(F)::QAB1(B)
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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).