MESON Chess Problem Database

Problem Display
PID: 240097 (2K5/3QP2B/6r1/4P1r1/4k1bR/2P1n2R/7B/8 w - - 0 1)

Zilahi, Zoltan

Skakbladet, 1929

2K5/3QP2B/6r1/4P1r1/4k1bR/2P1n2R/7B/8

#2

9 + 5

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rf5
      • 2.Qd4#
    • 1...Sf5
      • 2.Qd3#
  • Tries
    • 1.Bxg6+?
      • 1...Rf5
        • 2.Qd4#
      • 1...Sf5
        • 2.Qc6#
        • 2.Qd3#
        • 2.Qd4#
        • 2.Qb7#
      • 1...Rxg6!
    • 1.Rxg4+?
      • 1...Sxg4
        • 2.Qd3#
      • 1...Rxg4!
  • Keys
    • 1.e8S!
      • threat
        • 2.Sf6#
      • 1...Rf5
        • 2.Qd4#
      • 1...Sd5
        • 2.Sd6#
      • 1...Sf5
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(d);N_PINQ(F),N_SPINR(e),SBLOCK::QAR1(F)
    • S(a);N_PINQ(F),N_SPINR(e),SBLOCK::QAB1(F)
  • Tries
    • Try
      • B(H);CHECK,XR(e)
      • Vars
        • R(d);N_PINQ(F),P_SPINR(d)::QAR1(F)
      • Refutation
        • R(d);XB(H)
    • Try
      • R(D);CHECK,N_SPINQ(F),XB(c)
      • Vars
        • S(a);XR(D)::QAB1(F)
      • Refutation
        • R(d);XR(D)
  • Actual
    • P(G);
    • Threat
      • S(G)
    • Vars
      • R(d);N_PINQ(F),N_SPINR(e),SBLOCK::QAR1(F)
      • S(a);SBLOCK::S(G)
      • S(a);N_PINQ(F),N_SPINR(e),SBLOCK::QAB1(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).