MESON Chess Problem Database

Problem Display
PID: 227906 (8/6P1/7K/5Np1/6kB/8/8/5Q2 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1926

8/6P1/7K/5Np1/6kB/8/8/5Q2

#2

5 + 2

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...gxh4
      • 2.g8Q#
      • 2.g8R#
  • Tries
    • 1.Sg3?
      • 1...gxh4
        • 2.g8Q#
        • 2.g8R#
      • 1...Kxh4!
    • 1.Sd4?
      • 1...gxh4
        • 2.Qf3#
        • 2.g8Q#
        • 2.g8R#
      • 1...Kxh4!
    • 1.Sd6?
      • 1...gxh4
        • 2.g8Q#
        • 2.g8R#
      • 1...Kxh4!
    • 1.Se7?
      • 1...gxh4
        • 2.g8Q#
        • 2.g8R#
      • 1...Kxh4!
    • 1.Qf2?
      • 1...Kh3
        • 2.Qg3#
      • 1...gxh4!
  • Keys
    • 1.g8S!
      • 1...gxh4
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(b);XB(B)::P=Q
  • Tries
    • Try
      • S(C);
      • Vars
        • P(b);SBLOCK,XB(B)::P=Q
      • Refutation
        • K(a);P-FLIGHT,XB(B)
    • Try
      • S(C);
      • Refutation
        • K(a);P-FLIGHT,XB(B)
    • Try
      • S(C);
      • Vars
        • P(b);SBLOCK,XB(B)::P=Q
      • Refutation
        • K(a);P-FLIGHT,XB(B)
    • Try
      • S(C);
      • Vars
        • P(b);SBLOCK,XB(B)::P=Q
      • Refutation
        • K(a);P-FLIGHT,XB(B)
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • P(b);XB(B)
  • Actual
    • P(E);
    • Vars
      • P(b);XB(B)::S(E)
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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).