MESON Chess Problem Database

Problem Display
PID: 203504 (8/8/8/5p2/5B2/2K2kP1/8/QR6 w - - 0 1)

Schetelich, Fritz

Allgemeine Zeitung Chemnitz, 1924

8/8/8/5p2/5B2/2K2kP1/8/QR6

#2

5 + 2

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qa8#
  • Tries
    • 1.Rg1?
      • 1...Ke2
        • 2.Qf1#
      • 1...Kf2
        • 2.Qf1#
      • 1...Ke4
        • 2.Qa8#
      • 1...Kg4!
    • 1.Rb2?
      • 1...Ke4
        • 2.Qh1#
        • 2.Qa8#
      • 1...Kg4!
    • 1.Qb2?
      • 1...Ke4
        • 2.Qg2#
        • 2.Qb7#
      • 1...Kg4!
    • 1.Qa2?
      • 1...Ke4
        • 2.Qg2#
        • 2.Qa8#
      • 1...Kg4!
  • Keys
    • 1.Rh1!
      • 1...Ke2
        • 2.Qf1#
      • 1...Kf2
        • 2.Qf1#
      • 1...Kg2
        • 2.Qf1#
      • 1...Ke4
        • 2.Qa8#
      • 1...Kg4
        • 2.Qd1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB(A)
  • Tries
    • Try
      • R(B);
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
        • K(a);P-FLIGHT::QAR1(A)
        • K(a);S_FLIGHT::QAB(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(B);
    • Vars
      • K(a);S_FLIGHT::QAB1(A)
      • K(a);P-FLIGHT::QAR1(A)
      • K(a);S_FLIGHT::QAB(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).