MESON Chess Problem Database

Problem Display
PID: 162571 (1rk1K3/1p3p2/PP4p1/8/3p4/2p5/8/1Q6 w - - 0 1)

Majoros, Bela

Sachova skladba, 2012

1rk1K3/1p3p2/PP4p1/8/3p4/2p5/8/1Q6

#2

4 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...c2
      • 2.Qxc2#
    • 1...g5
      • 2.Qf5#
  • Tries
    • 1.Qb5?
      • threat
        • 2.Qc4#
        • 2.Qd7#
        • 2.Qc5#
      • 1...bxa6
        • 2.Qc6#
        • 2.Qd7#
      • 1...Ra8!
  • Keys
    • 1.Qe4!
      • 1...bxa6
        • 2.Qc6#
      • 1...Ra8
        • 2.Qxb7#
      • 1...c2
        • 2.Qxc2#
      • 1...d3
        • 2.Qc4#
      • 1...g5
        • 2.Qf5#
      • 1...f5
        • 2.Qe6#
      • 1...f6
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • P(a);OGATEB::QAR(A),XP(a)
    • P(c);N_GUARD::QAB(A)
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(3)
      • Refutation
        • R(f);
  • Actual
    • Q(A);
    • Vars
      • P(d);N_GUARD,XP(B)::QAR2(A)
      • R(f);N_GUARD::QAB1(A),XP(d)
      • P(a);OGATEB::QAR(A),XP(a)
      • P(b);OGATE::QAR(A)
      • P(c);N_GUARD::QAB(A)
      • P(e);N_GUARD::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).