MESON Chess Problem Database

Problem Display
PID: 190023 (8/8/6p1/Q5Bp/2pp1PkN/K2N2q1/6R1/6n1 w - - 0 1)

Zaborszky, Sandorne

Wiener Schachzeitung, 1913

8/8/6p1/Q5Bp/2pp1PkN/K2N2q1/6R1/6n1

#2

7 + 7

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sf3
      • 2.Sf2#
    • 1...c3
      • 2.Sf2#
  • Tries
    • 1.Qd5?
      • threat
        • 2.Qe6#
        • 2.Qd7#
      • 1...Qxg2
        • 2.Qxg2#
      • 1...Kh3!
    • 1.Qa8?
      • threat
        • 2.Qc8#
      • 1...Qxg2
        • 2.Qxg2#
      • 1...Kh3!
  • Keys
    • 1.Qc3!
      • threat
        • 2.Sf2#
      • 1...Kh3
        • 2.Sf2#
      • 1...Qxg2
        • 2.Se5#
      • 1...cxd3
        • 2.Qc8#
      • 1...Sh3
        • 2.Se5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • S(a);N_PINS(C)::S(C)
    • P(c);N_PINS(C)::S(C)
  • Tries
    • Try
      • Q(F);
      • Threat
        • DUALS(2)
      • Vars
        • Q(b);N_PINS(C),N_SPINQ(b),OGATE,XR(A)::QAR2(F),XQ(b)
      • Refutation
        • K(e);N_SPINQ(b),S_FLIGHT
    • Try
      • Q(F);
      • Threat
        • QAB(F)
      • Vars
        • Q(b);N_PINS(C),N_SPINQ(b),OGATE,XR(A)::QAR2(F),XQ(b)
      • Refutation
        • K(e);N_SPINQ(b),S_FLIGHT
  • Actual
    • Q(F);N_SPINS(C)
    • Threat
      • S(C)
    • Vars
      • K(e);N_SPINQ(b),S_FLIGHT::S(C)
      • Q(b);N_SPINQ(b),XR(A)::S(C)
      • P(c);OGATE,XS(C)::QAB(F)
      • S(a);SBLOCK::S(C)
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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).