MESON Chess Problem Database

Problem Display
PID: 92733 (6Qb/8/5kPP/8/2K3B1/6P1/8/8 w - - 0 1)

Palkoska, Emil

Tijdschrift vd NSB, 1901

6Qb/8/5kPP/8/2K3B1/6P1/8/8

#2

6 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qe6#
  • Tries
    • 1.Qf7+?
      • 1...Ke5
        • 2.Qe6#
        • 2.Qf4#
        • 2.Qe7#
      • 1...Kg5!
    • 1.Qd8+?
      • 1...Ke5
        • 2.Qe7#
        • 2.Qd4#
      • 1...Kxg6!
  • Keys
    • 1.g7!
      • 1...Ke5
        • 2.Qe6#
      • 1...Kg5
        • 2.gxh8Q#
      • 1...Kg6
        • 2.gxh8Q#
      • 1...Ke7
        • 2.Qf8#
      • 1...Bxg7
        • 2.Qxg7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR1(F)
  • Tries
    • Try
      • Q(F);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Refutation
        • K(a);P-FLIGHT,XP(D)
  • Actual
    • P(D);
    • Vars
      • K(a);S_FLIGHT::QAR1(F)
      • K(a);S_FLIGHT::PXB(b)=Q
      • K(a);P-FLIGHT::PXB(b)=Q
      • K(a);S_FLIGHT::QAB1(F)
      • B(b);OGATE,XP(D)::QAB1(F),XB(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).