MESON Chess Problem Database

Problem Display
PID: 187851 (2N1Q3/8/8/2p3P1/2Pk2Pp/7N/1P2P3/2K5 w - - 0 1)

Gold, Samuel

Vasarnapi Ujsag, 1910

2N1Q3/8/8/2p3P1/2Pk2Pp/7N/1P2P3/2K5

#2

9 + 3

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Sf4?
      • 1...Kxc4
        • 2.Qa4#
      • 1...h3!
    • 1.Qf7?
      • threat
        • 2.Qf4#
      • 1...Ke4
        • 2.Qf4#
      • 1...Ke5
        • 2.Qd5#
      • 1...Ke3!
  • Keys
    • 1.Se7!
      • 1...Ke3
        • 2.Sf5#
        • 2.Sc6#
      • 1...Kxc4
        • 2.Qa4#
      • 1...Ke4
        • 2.Sf5#
        • 2.Sc6#
      • 1...Ke5
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(E)::QAR2(I)
      • Refutation
        • P(b);
    • Try
      • Q(I);
      • Threat
        • QAR2(I)
      • Vars
        • K(a);P-FLIGHT::QAR1(I)
        • K(a);S_FLIGHT::QAR1(I)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(H);
    • Vars
      • K(a);OGATEB,P-FLIGHT,XP(E)::QAR2(I)
      • K(a);S_FLIGHT::QAR(I)+S(H)
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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).