MESON Chess Problem Database

Problem Display
PID: 276568 (8/8/7R/p1B5/1rk2N1Q/2N5/1p2K2p/3B4 w - - 0 1)

Muller, Dieter

Stella Polaris, 1970

8/8/7R/p1B5/1rk2N1Q/2N5/1p2K2p/3B4

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc3
      • 2.Sd5#
    • 1...Kxc5
      • 2.Sd3#
  • Keys
    • 1.Qd8!
      • threat
        • 2.Qd4#
      • 1...Kxc3
        • 2.Qd3#
      • 1...Kxc5
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(d);N_GUARD,P-FLIGHT,XS(C)::S(D)
    • K(d);N_GUARD,P-FLIGHT,XB(F)::S(D)
  • Actual
    • Q(E);
    • Threat
      • QAR1(E)
    • Vars
      • K(d);N_GUARD,P-FLIGHT,XS(C)::QAR1(E)
      • K(d);N_GUARD,P-FLIGHT,XB(F)::QAR1(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).