MESON Chess Problem Database

Problem Display
PID: 11706 (8/8/1P5P/Q4K1k/1P5P/8/8/8 w - - 0 1)

Kardos, Tivadar

Feledvanykedvelok Lapja, 1971

8/8/1P5P/Q4K1k/1P5P/8/8/8

#2

6 + 1

3295 Einfuhrung in die Welt des Schachproblem 1984
3713 Snap 2001
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qa1?
      • 1...Kxh6
        • 2.Qh8#
      • 1...Kxh4!
    • 1.Qa2?
      • 1...Kxh4
        • 2.Qh2#
      • 1...Kxh6!
    • 1.Qa8?
      • 1...Kxh6
        • 2.Qh8#
      • 1...Kxh4!
    • 1.h7?
      • threat
        • 2.h8Q#
        • 2.h8R#
      • 1...Kh6
        • 2.h8Q#
      • 1...Kxh4!
  • Keys
    • 1.Qe5!
      • 1...Kxh4
        • 2.Qh2#
      • 1...Kxh6
        • 2.Qh8#

Anticipated by 259247(1945)

This anticipates 11951(1973), 168587(2000)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(F)::QAR2(C)
      • Refutation
        • K(a);P-FLIGHT,XP(B)
    • Try
      • Q(C);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(B)::QAR2(C)
      • Refutation
        • K(a);P-FLIGHT,XP(F)
    • Try
      • Q(C);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(F)::QAR2(C)
      • Refutation
        • K(a);P-FLIGHT,XP(B)
    • Try
      • P(F);
      • Threat
        • P=Q
      • Vars
        • K(a);P-FLIGHT::P=Q
      • Refutation
        • K(a);P-FLIGHT,XP(B)
  • Actual
    • Q(C);
    • Vars
      • K(a);OGATEB,P-FLIGHT,XP(B)::QAR2(C)
      • K(a);OGATEB,P-FLIGHT,XP(F)::QAR2(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).