MESON Chess Problem Database

Problem Display
PID: 141369 (6R1/7Q/4p1br/7p/4N2k/4NK2/3B1P2/8 w - - 0 1)

Pollock, WH

Source?, 0000

6R1/7Q/4p1br/7p/4N2k/4NK2/3B1P2/8

#2

7 + 5

14868 Pirnie Collection 2011

SOLUTION

  • SOUND
  • Tries
    • 1.Qxg6?
      • threat
        • 2.Qg3#
      • 1...Kh3
        • 2.Qg3#
      • 1...Rxg6!
  • Keys
    • 1.Sg5!
      • threat
        • 2.Sg2#
      • 1...Be4+
        • 2.Qxe4#
      • 1...Kxg5
        • 2.Qe7#

There are these versions: 106815

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);XB(d)
      • Threat
        • QAB1(F)
      • Vars
        • K(a);P-FLIGHT::QAR1(F)
      • Refutation
        • R(e);XQ(F)
  • Actual
    • S(E);
    • Threat
      • S(C)
    • Vars
      • B(d);CHECK,OGATE::QAR(F),XB(d)
      • K(a);OGATEB,P_SPINB(d),S_FLIGHT,XS(E)::QAB(F)
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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).