MESON Chess Problem Database

Problem Display
PID: 257824 (4KB1k/6Rq/6B1/8/5N2/8/8/8 w - - 0 1)

Labai, Zoltan

1st HM., Problemist Ukraini 21. TT, 2018

4KB1k/6Rq/6B1/8/5N2/8/8/8

#2

5 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Qxg6+
      • 2.Sxg6#
  • Keys
    • 1.Kf7!
      • threat
        • 2.Rxh7#
      • 1...Qxg6+
        • 2.Sxg6#
      • 1...Qg8+
        • 2.Rxg8#
      • 1...Qxg7+
        • 2.Bxg7#
      • 1...Qh1
        • 2.Rg8#
      • 1...Qh2
        • 2.Rg8#
      • 1...Qh3
        • 2.Rg8#
      • 1...Qh4
        • 2.Rg8#
      • 1...Qh5
        • 2.Rg8#
      • 1...Qh6
        • 2.Rg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • Q(a);CHECK,XB(B)::S(A),XQ(a)
  • Actual
    • K(D);P_SPINR(C),S_FLIGHT
    • Threat
      • R1(C),XQ(a)
    • Vars
      • Q(a);CHECK,N_PINR(C),XB(B)::S(A),XQ(a)
      • Q(a);CHECK,N_PINR(C)::R1(C),XQ(a)
      • Q(a);CHECK,OGATE,XR(C)::B(E),XQ(a)
      • Q(a);N_PINR(C)::R1(C)
      • Q(a);N_PINR(C),P_PINB(B)::R1(C)
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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).