MESON Chess Problem Database

Problem Display
PID: 120083 (4b3/5q2/2p1pp2/7P/4R1Pk/4Q2p/4K2P/8 w - - 0 1)

Pituk, Alexander

Ruch, 1947

4b3/5q2/2p1pp2/7P/4R1Pk/4Q2p/4K2P/8

#2

6 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Keys
    • 1.Qh6!
      • threat
        • 2.g5#
      • 1...Qxh5
        • 2.gxh5#
      • 1...Qg6
        • 2.hxg6#
      • 1...Qc7
        • 2.Qxf6#
      • 1...Qh7
        • 2.Qxf6#
      • 1...f5
        • 2.gxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(C);
    • Threat
      • R(D)+P(E)
    • Vars
      • Q(f);OGATE,P_PINP(E),P_SPINQ(f),XP(F)::R(D)+P(E),XQ(f)
      • Q(f);OGATE::QAR(C)+P(F),XQ(f)
      • Q(f);N_GUARD::QAB(C),XP(e)
      • P(e);OGATE::R(D)+P(E),XP(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).