MESON Chess Problem Database

Problem Display
PID: 231554 (7Q/6p1/6kN/4P3/5KP1/8/8/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1927

7Q/6p1/6kN/4P3/5KP1/8/8/8

#2

5 + 2

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...gxh6
      • 2.Qg8#
  • Tries
    • 1.Ke3?
      • 1...gxh6
        • 2.Qg8#
      • 1...Kg5!
    • 1.Kf3?
      • 1...gxh6
        • 2.Qg8#
      • 1...Kg5!
    • 1.Ke4?
      • 1...gxh6
        • 2.Qg8#
      • 1...Kg5!
    • 1.Qe8+?
      • 1...Kxh6
        • 2.Qh5#
      • 1...Kh7!
  • Keys
    • 1.Kg3!
      • 1...Kg5
        • 2.Qxg7#
      • 1...gxh6
        • 2.Qg8#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATEB,SBLOCK,XS(D)::QAR2(E)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Vars
        • P(b);OGATEB,SBLOCK,XS(D)::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Vars
        • P(b);OGATEB,SBLOCK,XS(D)::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Vars
        • P(b);OGATEB,SBLOCK,XS(D)::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT,XS(D)::QAR1(E)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • K(A);S_FLIGHT
    • Vars
      • K(a);P-FLIGHT::QAR2(E),XP(b)
      • P(b);OGATEB,SBLOCK,XS(D)::QAR2(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).