MESON Chess Problem Database

Problem Display
PID: 231466 (8/4p1pK/5kP1/3Q4/7P/8/8/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1927

8/4p1pK/5kP1/3Q4/7P/8/8/8

#2

4 + 3

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...e5
      • 2.Qf7#
    • 1...e6
      • 2.Qg5#
  • Tries
    • 1.Kh8?
      • 1...e5
        • 2.Qf7#
      • 1...e6
        • 2.Qg5#
      • 1...Kxg6!
  • Keys
    • 1.Kg8!
      • 1...Kxg6
        • 2.Qg5#
      • 1...e5
        • 2.Qf7#
      • 1...e6
        • 2.Qg5#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK::QAR1(B)
    • P(b);SBLOCK::QAB1(B)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Vars
        • P(b);SBLOCK::QAR1(B)
        • P(b);SBLOCK::QAB1(B)
      • Refutation
        • K(a);P-FLIGHT,XP(C)
  • Actual
    • K(D);S_FLIGHT
    • Vars
      • K(a);P-FLIGHT,XP(C)::QAR1(B)
      • P(b);SBLOCK::QAR1(B)
      • P(b);SBLOCK::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).