MESON Chess Problem Database

Problem Display
PID: 169314 (8/8/8/5Prk/6Nq/8/7Q/2KB4 w - - 0 1)

Serafimovic, Ilya

Comm., SuperProblem 186. TT, 2017

8/8/8/5Prk/6Nq/8/7Q/2KB4

#2

5 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qh3
      • 2.Qxh3#
  • Keys
    • 1.Qd6!
      • threat
        • 2.Qh6#
      • 1...Qxg4
        • 2.Qh2#
      • 1...Rxg4
        • 2.Qg6#
      • 1...Rg6
        • 2.Qxg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • Q(a);OGATEB::QAR2(C),XQ(a)
  • Actual
    • Q(C);N_PINQ(a)
    • Threat
      • QAR1(C)
    • Vars
      • Q(a);OGATEB,P_SPINQ(a),XS(D)::QAR(C)
      • R(b);N_GUARD,P_SPINR(b),XS(D)::QAB1(C)
      • R(b);N_GUARD::QAB1(C),XR(b)
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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).