MESON Chess Problem Database

Problem Display
PID: 102841 (1k6/b4pp1/1pK5/8/8/8/p7/Q7 w - - 0 1)

Fleischmann, Simon

Dubuque Chess Journal, 1875

1k6/b4pp1/1pK5/8/8/8/p7/Q7

#2

2 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...g5
      • 2.Qh8#
    • 1...g6
      • 2.Qh8#
  • Tries
    • 1.Qe5+?
      • 1...Kc8
        • 2.Qc7#
        • 2.Qe8#
      • 1...Ka8!
    • 1.Qxg7?
      • threat
        • 2.Qf8#
        • 2.Qh8#
        • 2.Qg8#
      • 1...Kc8
        • 2.Qf8#
        • 2.Qh8#
        • 2.Qg8#
      • 1...a1Q
        • 2.Qf8#
        • 2.Qg8#
      • 1...a1B
        • 2.Qf8#
        • 2.Qg8#
      • 1...Ka8!
    • 1.Qe1?
      • threat
        • 2.Qe8#
      • 1...Kc8
        • 2.Qe8#
      • 1...Ka8!
  • Keys
    • 1.Qh1!
      • threat
        • 2.Qh8#
      • 1...Ka8
        • 2.Kc7#
      • 1...Kc8
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • P(e);OGATE::QAR(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Refutation
        • K(f);P-FLIGHT
    • Try
      • Q(A);XP(e)
      • Threat
        • DUALS(3)
      • Refutation
        • K(f);P-FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAR(A)
      • Vars
        • K(f);P-FLIGHT::QAR2(A)
      • Refutation
        • K(f);P-FLIGHT
  • Actual
    • Q(A);
    • Threat
      • QAR(A)
    • Vars
      • K(f);P-FLIGHT::QAB(A)+K(B)
      • K(f);P-FLIGHT::QAR(A)
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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).