MESON Chess Problem Database

Problem Display
PID: 145193 (1B6/2rp4/8/1Q1p4/2R5/5k2/r4P2/2N4K w - - 0 1)

Ursic, Andrej Anton

British Chess Magazine 13. Ty., 1906-1907

1B6/2rp4/8/1Q1p4/2R5/5k2/r4P2/2N4K

#2

6 + 5

14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf2
      • 2.Qb3#
    • 1...Rc5
      • 2.Rf4#
    • 1...Rc6
      • 2.Rf4#
    • 1...Ra7
      • 2.Rf4#
    • 1...Rb7
      • 2.Rf4#
    • 1...Rc8
      • 2.Rf4#
    • 1...dxc4
      • 2.Qf5#
    • 1...d4
      • 2.Qf5#
  • Keys
    • 1.Qc5!
      • threat
        • 2.Qe3#
        • 2.Qf8#
      • 1...Rxf2
        • 2.Qa3#
      • 1...Rxc5
        • 2.Rf4#
      • 1...dxc4
        • 2.Qf5#
      • 1...d4
        • 2.Qf5#
      • 1...Re2
        • 2.Qf8#
      • 1...Ra3
        • 2.Qf8#
      • 1...Ra6
        • 2.Qe3#
      • 1...Rc6
        • 2.Rf4#
        • 2.Qe3#
      • 1...Rc8
        • 2.Rf4#
        • 2.Qe3#
      • 1...d6
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • R(a);SBLOCK,XP(C)::QAR(E)
    • R(d);::R1(D)
    • P(c);OGATE,XR(D)::QAR2(E)
    • P(c);OGATE::QAR2(E)
  • Actual
    • Q(E);
    • Threat
      • DUALS(2)
    • Vars
      • R(a);N_GUARD,SBLOCK,XP(C)::QAR(E)
      • R(d);XQ(E)::R1(D)
      • P(c);OGATE,XR(D)::QAR2(E)
      • P(c);OGATE::QAR2(E)
      • R(a);::QAR(E)
      • R(a);::QAR1(E)
      • P(e);::QAR1(E)
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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).