MESON Chess Problem Database

Problem Display
PID: 208223 (5B2/2pB4/2N4n/1n1k4/2ppp3/8/6K1/4Q3 w - - 0 1)

Dischler, Max

Badische Neueste Nachrichten, 1984

5B2/2pB4/2N4n/1n1k4/2ppp3/8/6K1/4Q3

#2

5 + 7

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qg3?
      • threat
        • 2.Sb4#
        • 2.Qe5#
      • 1...Sd6
        • 2.Qe5#
      • 1...e3
        • 2.Qe5#
        • 2.Qf3#
      • 1...Sg4
        • 2.Sb4#
      • 1...Sf7
        • 2.Sb4#
      • 1...d3
        • 2.Qe5#
      • 1...c3!
  • Keys
    • 1.Qf2!
      • 1...Sd6
        • 2.Qxd4#
      • 1...c3
        • 2.Qa2#
      • 1...e3
        • 2.Qf3#
      • 1...Sa3
        • 2.Qxd4#
      • 1...Sc3
        • 2.Qxd4#
      • 1...Sa7
        • 2.Qxd4#
      • 1...Sg4
        • 2.Qf7#
      • 1...Sf5
        • 2.Qxf5#
      • 1...Sf7
        • 2.Qxf7#
      • 1...Sg8
        • 2.Qf5#
        • 2.Qf7#
      • 1...d3
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • S(d);::QAR1(A)
        • S(f);::S(C)
        • P(b);::QAR1(A)
      • Refutation
        • P(a);
  • Actual
    • Q(A);
    • Vars
      • S(d);N_GUARD::QAR1(A),XP(b)
      • P(a);OGATEB::QAB(A)
      • P(c);OGATEB::QAB(A)
      • S(f);N_GUARD::QAB(A)
      • S(f);N_GUARD::QAR2(A),XS(f)
      • S(f);N_GUARD::QAB(A),XS(f)
      • P(b);OGATE::QAR1(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).