MESON Chess Problem Database

Problem Display
PID: 238774 (5Rq1/2B2b2/r2nQ3/p3n3/R1Nr1k1P/p2P1p2/K4P2/8 w - - 0 1)

Janevski, Zivko

Mat, 1983

5Rq1/2B2b2/r2nQ3/p3n3/R1Nr1k1P/p2P1p2/K4P2/8

#2

9 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qg4
      • 2.Qxe5#
    • 1...Se4
      • 2.Bxe5#
    • 1...Sb5
      • 2.Bxe5#
    • 1...Sb7
      • 2.Bxe5#
    • 1...Sc8
      • 2.Bxe5#
    • 1...Se8
      • 2.Bxe5#
  • Keys
    • 1.Se3!
      • threat
        • 2.Sd5#
      • 1...Sec4
        • 2.Qf5#
        • 2.Qf6#
      • 1...Sdc4
        • 2.Qf5#
      • 1...Se4
        • 2.Bxe5#
      • 1...Sf5
        • 2.Bxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • Q(j);SBLOCK::QAB1(G),XS(f)
    • S(h);OGATE,P_SPINS(f)::B(H),XS(f)
  • Actual
    • S(E);P_PINR(c),P_SPINQ(G)
    • Threat
      • S(E)
    • Vars
      • S(h);N_PINQ(G),N_SPINR(c),P_SPINS(f)::QAR1(G)
      • S(h);N_SPINR(c),OGATE,P_SPINS(f)::B(H),XS(f)
      • S(h);N_SPINB(i),OGATE,P_SPINS(f)::B(H),XS(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).