MESON Chess Problem Database

Problem Display
PID: 200360 (8/1pp1pn2/3k4/Q1NPp3/1K2P3/8/8/8 w - - 0 1)

Lokaj, Rudolf

Sachova skladba, 1998

8/1pp1pn2/3k4/Q1NPp3/1K2P3/8/8/8

#2

5 + 6

SOLUTION

  • SOUND
  • Tries
    • 1.Qb5?
      • threat
        • 2.Sxb7#
        • 2.Qd7#
      • 1...e6
        • 2.Qd7#
      • 1...Sd8
        • 2.Qd7#
      • 1...b6
        • 2.Sb7#
        • 2.Qc6#
        • 2.Qd7#
      • 1...c6!
  • Keys
    • 1.Qa8!
      • 1...c6
        • 2.Qb8#
      • 1...e6
        • 2.Qf8#
      • 1...Sg5
        • 2.Qd8#
      • 1...Sh6
        • 2.Qd8#
      • 1...Sd8
        • 2.Qxd8#
      • 1...Sh8
        • 2.Qd8#
      • 1...b5
        • 2.Qc6#
      • 1...b6
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • P(e);::QAR1(C)
        • S(f);::QAR1(C)
      • Refutation
        • P(d);
  • Actual
    • Q(C);
    • Vars
      • P(d);OGATEB::QAB(C)
      • P(e);OGATEB::QAB(C)
      • S(f);N_GUARD::QAR2(C)
      • S(f);N_GUARD::QAR2(C),XS(f)
      • P(c);OGATE::QAR1(C)
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).