MESON Chess Problem Database

Problem Display
PID: 254356 (KB4b1/P1qpn3/Rr1kppp1/N1p5/2p2P1Q/2N5/3n2p1/3R4 w - - 0 1)

Kapros, Jorge Marcelo

Problemas, 2021

KB4b1/P1qpn3/Rr1kppp1/N1p5/2p2P1Q/2N5/3n2p1/3R4

#2

9 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Qxb8+
      • 2.axb8Q#
      • 2.axb8B#
    • 1...Rc6
      • 2.Sxc4#
      • 2.Sb7#
  • Keys
    • 1.Qxf6!
      • threat
        • 2.Qe5#
      • 1...Qxb8+
        • 2.axb8Q#
        • 2.axb8B#
      • 1...Sd5
        • 2.Sb5#
      • 1...Sf5
        • 2.Rxb6#
      • 1...Sc6
        • 2.Sxc4#
      • 1...Sc8
        • 2.Rxd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • Q(j);CHECK,N_SPINQ(j),OGATE,XB(I)::PXQ(j)=Q
  • Actual
    • Q(D);P_PINP(g),XP(h)
    • Threat
      • QAB1(D)
    • Vars
      • Q(j);CHECK,N_SPINQ(j),OGATE,XB(I)::PXQ(j)=Q
      • S(l);N_SPINS(a),SBLOCK::S(B)
      • S(l);N_GUARD::R(F),XR(e)
      • S(l);N_SPINR(e),SBLOCK::S(E),XP(c)
      • S(l);N_GUARD::R(A),XS(a)
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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).