MESON Chess Problem Database

Problem Display
PID: 173165 (B1R2R2/2p1BN2/1Q1P4/4K3/8/8/8/5kN1 w - - 0 1)

Ferron de la Fuente, Ernesto

Problem Observer, 2005

B1R2R2/2p1BN2/1Q1P4/4K3/8/8/8/5kN1

#2

9 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qe3?
      • threat
        • 2.Sg5#
        • 2.Sh6#
        • 2.Sd8#
        • 2.Sh8#
      • 1...cxd6+
        • 2.Sxd6#
      • 1...c6!
  • Keys
    • 1.Bh4!
      • threat
        • 2.Sg5#
        • 2.Sh6#
        • 2.Sd8#
        • 2.Sh8#
        • 2.Qf2#
        • 2.Qb1#
      • 1...cxd6+
        • 2.Sxd6#
      • 1...cxb6
        • 2.Rc1#
      • 1...c5
        • 2.Qb1#
      • 1...c6
        • 2.Qf2#

This is a version of 160222

Version of J. F. Ling, itself after F. Janet.

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Threat
        • DUALS(4)
      • Vars
        • P(b);CHECK,XP(D)::R(I)+S(F),XP(b)
      • Refutation
        • P(b);
  • Actual
    • B(E);
    • Threat
      • DUALS(6)
    • Vars
      • P(b);CHECK,XP(D)::R(I)+S(F),XP(b)
      • P(b);OGATE,XQ(C)::R(H)
      • P(b);::QAR(C)
      • P(b);::QAR1(C)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).