MESON Chess Problem Database

Problem Display
PID: 230954 (1Q6/2N1kP2/8/5K2/8/8/8/8 w - - 0 1)

Stohr, Paul

Deutsche Schachzeitung, 1982

1Q6/2N1kP2/8/5K2/8/8/8/8

#2

4 + 1

SOLUTION

  • SOUND
  • Tries
    • 1.Sb5?
      • threat
        • 2.Qe8#
      • 1...Kd7
        • 2.Qc7#
        • 2.Qe8#
      • 1...Kxf7!
    • 1.Sd5+?
      • 1...Kd7
        • 2.Qc7#
      • 1...Kxf7!
    • 1.Sa6?
      • 1...Kd7
        • 2.Qc7#
      • 1...Kxf7!
    • 1.Sa8?
      • 1...Kd7
        • 2.Qc7#
      • 1...Kxf7!
  • Keys
    • 1.Se6!
      • threat
        • 2.Qc7#
      • 1...Kd7
        • 2.Qc7#
      • 1...Kxf7
        • 2.Qf8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • QAR1(D)
      • Refutation
        • K(a);P-FLIGHT,XP(C)
    • Try
      • S(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(D)
      • Refutation
        • K(a);P-FLIGHT,XP(C)
    • Try
      • S(B);
      • Vars
        • K(a);P-FLIGHT::QAR1(D)
      • Refutation
        • K(a);P-FLIGHT,XP(C)
    • Try
      • S(B);
      • Vars
        • K(a);P-FLIGHT::QAR1(D)
      • Refutation
        • K(a);P-FLIGHT,XP(C)
  • Actual
    • S(B);
    • Threat
      • QAR2(D)
    • Vars
      • K(a);P-FLIGHT::QAR1(D)
      • K(a);P-FLIGHT,XP(C)::QAR1(D)
HTML5 logo

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).