MESON Chess Problem Database

Problem Display
PID: 80028 (8/N7/2PkN3/5K1Q/6P1/8/8/8 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

Baku, 1985

8/N7/2PkN3/5K1Q/6P1/8/8/8

#2

6 + 1

SOLUTION

  • SOUND
  • Sets
    • 1...Ke7
      • 2.Sc8#
  • Tries
    • 1.Qg6?
      • 1...Ke7
        • 2.Sc8#
      • 1...Kd5!
    • 1.Qh3?
      • 1...Kd5
        • 2.Qd3#
      • 1...Ke7!
    • 1.Qh6?
      • 1...Ke7
        • 2.Qf8#
      • 1...Kd5!
    • 1.g5?
      • 1...Ke7
        • 2.Sc8#
      • 1...Kd5!
  • Keys
    • 1.Qh8!
      • threat
        • 2.Qd8#
      • 1...Kd5
        • 2.Qd4#
      • 1...Ke7
        • 2.Qf8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::S(F)
  • Tries
    • Try
      • Q(C);
      • Vars
        • K(a);S_FLIGHT::S(F)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);P-FLIGHT::QAR2(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • P(A);
      • Vars
        • K(a);S_FLIGHT::S(F)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(C);
    • Threat
      • QAR2(C)
    • Vars
      • K(a);P-FLIGHT::QAR1(C)
      • K(a);S_FLIGHT::QAB1(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).