MESON Chess Problem Database

Problem Display
PID: 249377 (8/8/3Q4/k7/2P5/8/K7/8 w - - 0 1)

Dittmann, Dr Wolfgang

Gerdes, Josef

Glaser, Konrad

Grob, Frank

Jungwirth, Otto

Latzel, Gerhard Paul

Maleika, Gerhard

Proband, Wolfgang

Rieg, Hartmut

Schulz, Karl-Dieter

Wubbeke, Horst

Deutsche Schachzeitung, 1968

8/8/3Q4/k7/2P5/8/K7/8

#2

3 + 1

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ka4
      • 2.Qa3#
  • Tries
    • 1.Qc5+?
      • 1...Ka4
        • 2.Qa3#
        • 2.Qb5#
      • 1...Ka6!
    • 1.Qb8?
      • threat
        • 2.Qb5#
      • 1...Ka4
        • 2.Qb5#
      • 1...Ka6!
    • 1.Qb6+?
      • 1...Ka4
        • 2.Qb5#
      • 1...Kxb6!
  • Keys
    • 1.Kb2!
      • 1...Ka4
        • 2.Qa3#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR1(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);
      • Threat
        • QAR1(C)
      • Vars
        • K(a);P-FLIGHT::QAB1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);P-FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT,XQ(C)
  • Actual
    • K(A);P-FLIGHT
    • Vars
      • K(a);P-FLIGHT::QAR1(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).