MESON Chess Problem Database

Problem Display
PID: 176481 (6Q1/8/1K6/8/p1N5/Pk3P2/1B2p3/1B6 w - - 0 1)

Radecke, Heinz

Schach-Echo, 1984

6Q1/8/1K6/8/p1N5/Pk3P2/1B2p3/1B6

#2

7 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qh7?
      • threat
        • 2.Qc2#
        • 2.Qd3#
      • 1...Kxc4
        • 2.Ba2#
        • 2.Qd3#
        • 2.Qg8#
        • 2.Qf7#
      • 1...e1Q
        • 2.Qc2#
      • 1...e1B
        • 2.Qc2#
      • 1...e1S!
    • 1.Qg6?
      • threat
        • 2.Qc2#
        • 2.Qd3#
      • 1...Kxc4
        • 2.Ba2#
        • 2.Qd3#
        • 2.Qf7#
        • 2.Qe6#
        • 2.Qg8#
      • 1...e1Q
        • 2.Qc2#
      • 1...e1B
        • 2.Qc2#
      • 1...e1S!
  • Keys
    • 1.Qg2!
      • 1...Kxc4
        • 2.Qg8#
      • 1...e1Q
        • 2.Qc2#
      • 1...e1S
        • 2.Sa5#
      • 1...e1B
        • 2.Qc2#
      • 1...e1R
        • 2.Sa5#
        • 2.Qc2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • P(a);::QAB1(G)
      • Refutation
        • P(a);
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • P(a);::QAB1(G)
      • Refutation
        • P(a);
  • Actual
    • Q(G);
    • Vars
      • K(b);OGATEB,S_FLIGHT,XS(E)::QAB(G)
      • P(a);OGATE::QAB1(G)
      • P(a);::S(E)
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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).