MESON Chess Problem Database

Problem Display
PID: 237435 (1n6/P3pK2/3p1P2/N1r1krPR/2P1p1P1/Q1p1P3/n7/3b4 w - - 0 1)

Labai, Zoltan

Hlas l'udu, 1974

1n6/P3pK2/3p1P2/N1r1krPR/2P1p1P1/Q1p1P3/n7/3b4

#2

10 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg5
      • 2.Rxg5#
    • 1...Rxf6+
      • 2.gxf6#
    • 1...Sc1
      • 2.Qxc3#
    • 1...Sb4
      • 2.Qxc3#
  • Keys
    • 1.Qxc5+!
      • 1...dxc5
        • 2.axb8Q#
        • 2.axb8B#
      • 1...d5
        • 2.Qxe7#
        • 2.Qxd5#
        • 2.Qc7#
        • 2.axb8Q#
        • 2.axb8B#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • R(g);N_PINP(H),OGATE,P_SPINR(g),XP(F)::R(G),XR(g)
    • R(g);CHECK,OGATE,XP(H)::R(G)+P(F),XR(g)
    • S(b);N_GUARD::QAB(A),XP(c)
  • Actual
    • Q(A);CHECK,XR(e)
    • Vars
      • P(h);XQ(A)::PXS(j)=Q
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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).