MESON Chess Problem Database

Problem Display
PID: 241837 (3n2K1/2QPk2N/8/5P2/8/8/8/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1930

3n2K1/2QPk2N/8/5P2/8/8/8/8

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sc6
      • 2.d8Q#
      • 2.d8R#
    • 1...Se6
      • 2.f6#
      • 2.d8Q#
    • 1...Sb7
      • 2.d8Q#
      • 2.d8R#
    • 1...Sf7
      • 2.d8Q#
      • 2.d8R#
  • Tries
    • 1.Kg7?
      • 1...Sc6
        • 2.d8Q#
        • 2.d8R#
      • 1...Sb7
        • 2.d8Q#
        • 2.d8R#
      • 1...Sf7
        • 2.d8Q#
        • 2.d8R#
      • 1...Se6+!
    • 1.Sg5?
      • 1...Sc6
        • 2.d8Q#
      • 1...Se6
        • 2.d8Q#
      • 1...Sb7
        • 2.d8Q#
      • 1...Sf7
        • 2.d8Q#
      • 1...Kf6!
    • 1.Sf8?
      • 1...Sc6
        • 2.d8Q#
      • 1...Se6
        • 2.d8Q#
      • 1...Sb7
        • 2.d8Q#
      • 1...Sf7
        • 2.d8Q#
      • 1...Kf6!
  • Keys
    • 1.Qc5+!
      • 1...Kxd7
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(b);OGATE::P=Q
  • Tries
    • Try
      • K(E);P-FLIGHT
      • Vars
        • S(b);OGATE::P=Q
      • Refutation
        • S(b);CHECK
    • Try
      • S(D);
      • Vars
        • S(b);OGATE::P=Q
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • S(b);OGATE::P=Q
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(B);CHECK
    • Vars
      • K(a);P-FLIGHT,XP(C)::S(D)
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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).