MESON Chess Problem Database

Problem Display
PID: 231649 (8/7Q/6N1/6kB/8/4p1N1/3pP3/3K4 w - - 0 1)

Schiffert, Gyorgy

Uj Nemezdek, 1927

8/7Q/6N1/6kB/8/4p1N1/3pP3/3K4

#2

6 + 3

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.Qe7#
  • Tries
    • 1.Qa7?
      • 1...Kf6
        • 2.Qe7#
      • 1...Kh6!
    • 1.Qb7?
      • 1...Kf6
        • 2.Qe7#
      • 1...Kh6!
    • 1.Qc7?
      • threat
        • 2.Qf4#
      • 1...Kf6
        • 2.Qe7#
      • 1...Kh6!
    • 1.Qd7?
      • 1...Kf6
        • 2.Se4#
        • 2.Qe7#
      • 1...Kh6!
  • Keys
    • 1.Bg4!
      • 1...Kxg4
        • 2.Qh4#
      • 1...Kf6
        • 2.Se4#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::QAB1(F)
  • Tries
    • Try
      • Q(F);
      • Vars
        • K(c);S_FLIGHT::QAB1(F)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(F);
      • Vars
        • K(c);S_FLIGHT::QAB1(F)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(F);
      • Threat
        • QAB1(F)
      • Vars
        • K(c);S_FLIGHT::QAB1(F)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(F);
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • B(D);
    • Vars
      • K(c);P-FLIGHT,XB(D)::QAR1(F)
      • K(c);S_FLIGHT::S(C)
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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).