MESON Chess Problem Database

Problem Display
PID: 221919 (3Q4/2PPP3/3k2K1/3P4/N3p3/1R6/B7/8 w - - 0 1)

Bie, Hans Petter

Stella Polaris, 1967

3Q4/2PPP3/3k2K1/3P4/N3p3/1R6/B7/8

#2

9 + 2

SOLUTION

  • SOUND
  • Keys
    • 1.Qh8!
      • threat
        • 2.d8Q#
      • 1...Kxd5
        • 2.Rb6#
      • 1...Kxc7
        • 2.d8Q#
      • 1...Kxd7
        • 2.Qd8#
      • 1...Kxe7
        • 2.d8Q#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(I);
    • Threat
      • P=Q
    • Vars
      • K(b);P-FLIGHT,XP(D)::B(A)+R(B)
      • K(b);S_FLIGHT,XP(F)::P=Q
      • K(b);OGATEB,P-FLIGHT,XP(G)::QAR1(I)
      • K(b);S_FLIGHT,XP(H)::P=Q
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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).