MESON Chess Problem Database

Problem Display
PID: 231029 (8/8/2K5/8/k7/P3Q3/8/8 w - - 0 1)

Speckmann, Werner

Deutsche Schachzeitung, 1969

8/8/2K5/8/k7/P3Q3/8/8

#2

3 + 1

15148 Sadier Collection 2021
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Ka5
      • 2.Qa7#
  • Tries
    • 1.Qb3+?
      • 1...Ka5
        • 2.Qb5#
      • 1...Kxb3!
    • 1.Qe7?
      • threat
        • 2.Qb4#
      • 1...Ka5
        • 2.Qa7#
      • 1...Kb3!
  • Keys
    • 1.Qd3!
      • 1...Ka5
        • 2.Qb5#

Anticipated by 99663(1925)

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR2(B)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT,XQ(B)
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • K(a);P-FLIGHT::QAR2(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(a);P-FLIGHT::QAR1(B)
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).