MESON Chess Problem Database

Problem Display
PID: 189807 (5Q2/2N4K/5R2/4p1b1/r3k3/2pp4/n4P2/8 w - - 0 1)

Gold, Samuel

Magyar Sakkujsag, 1912

5Q2/2N4K/5R2/4p1b1/r3k3/2pp4/n4P2/8

#2

5 + 7

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Qf7?
      • threat
        • 2.Qd5#
      • 1...Kd4
        • 2.Qd5#
      • 1...Rd4
        • 2.Qg6#
      • 1...Ra5
        • 2.Qc4#
      • 1...Sb4
        • 2.Qc4#
      • 1...Bxf6!
    • 1.Qa8+?
      • 1...Kd4
        • 2.Qd5#
      • 1...Rxa8!
  • Keys
    • 1.Qg8!
      • threat
        • 2.Qd5#
      • 1...Kd4
        • 2.Qd5#
      • 1...Bxf6
        • 2.Qg4#
      • 1...Rd4
        • 2.Qg6#
      • 1...Ra5
        • 2.Qc4#
      • 1...Sb4
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);
      • Threat
        • QAB1(E)
      • Vars
        • K(e);P-FLIGHT::QAR1(E)
        • R(d);SBLOCK::QAB(E)
        • R(d);N_GUARD::QAR2(E)
        • S(a);S_CUTR(d)::QAR2(E)
      • Refutation
        • B(g);XR(B)
    • Try
      • Q(E);CHECK
      • Vars
        • K(e);P-FLIGHT::QAR1(E)
      • Refutation
        • R(d);XQ(E)
  • Actual
    • Q(E);
    • Threat
      • QAB1(E)
    • Vars
      • K(e);P-FLIGHT::QAR1(E)
      • B(g);OGATE,XR(B)::QAR2(E)
      • R(d);SBLOCK::QAB(E)
      • R(d);N_GUARD::QAR2(E)
      • S(a);S_CUTR(d)::QAR2(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).