MESON Chess Problem Database

Problem Display
PID: 241808 (6R1/6K1/5Q1p/7k/8/8/8/6N1 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1929

6R1/6K1/5Q1p/7k/8/8/8/6N1

#2

4 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kg4
      • 2.Kxh6#
  • Tries
    • 1.Qf2?
      • 1...Kg4
        • 2.Kxh6#
      • 1...Kg5!
  • Keys
    • 1.Qxh6+!
      • 1...Kg4
        • 2.Kf6#

FEATURES

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