MESON Chess Problem Database

Problem Display
PID: 83801 (8/1p5n/5R2/1Pk5/8/2KBN3/6p1/4Qbq1 w - - 0 1)

Degener, Udo

Linss, Torsten

Sahovska Kompozicia, 1989

8/1p5n/5R2/1Pk5/8/2KBN3/6p1/4Qbq1

#2

6 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...b6
      • 2.Rc6#
  • Tries
    • 1.Qg3?
      • threat
        • 2.Qe5#
        • 2.Qd6#
        • 2.Qc7#
      • 1...Qxe3
        • 2.Qd6#
      • 1...Bxd3
        • 2.Qe5#
      • 1...Sxf6
        • 2.Qc7#
      • 1...Qh2!
  • Keys
    • 1.Qh4!
      • threat
        • 2.Qb4#
        • 2.Qc4#
        • 2.Qd4#
      • 1...Qxe3
        • 2.Qc4#
      • 1...Bxd3
        • 2.Qb4#
      • 1...Sxf6
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(e);N_GUARD::R1(F)
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(3)
      • Vars
        • Q(b);P_PINB(C),XS(D)::QAB1(A)
        • B(a);XB(C)::QAR2(A)
        • S(f);XR(F)::QAR2(A)
      • Refutation
        • Q(b);
  • Actual
    • Q(A);
    • Threat
      • DUALS(3)
    • Vars
      • Q(b);P_PINB(C),XS(D)::QAR1(A)
      • B(a);XB(C)::QAB1(A)
      • S(f);XR(F)::QAB1(A)
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).