MESON Chess Problem Database

Problem Display
PID: 181161 (7r/4Np2/4pp2/7k/4N2p/8/8/2n3QK w - - 0 1)

Kosek, Wojtech

Tidskrift for Schack, 1904

7r/4Np2/4pp2/7k/4N2p/8/8/2n3QK

#2

4 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...f5
      • 2.Qg5#
  • Tries
    • 1.Sf5?
      • threat
        • 2.Sxf6#
      • 1...Rh6
        • 2.Sg7#
      • 1...exf5!
  • Keys
    • 1.Qe3!
      • threat
        • 2.Sxf6#
      • 1...Kg4
        • 2.Sxf6#
      • 1...h3
        • 2.Qxh3#
      • 1...Rh6
        • 2.Qf3#
      • 1...f5
        • 2.Sf6#
        • 2.Qg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(e);N_GUARD::QAR1(A)
  • Tries
    • Try
      • S(D);
      • Threat
        • S(C),XP(e)
      • Vars
        • R(g);SBLOCK::S(D)
      • Refutation
        • P(d);XS(D)
  • Actual
    • Q(A);
    • Threat
      • S(C),XP(e)
    • Vars
      • K(c);S_FLIGHT::S(C),XP(e)
      • P(b);OGATEB::QAR2(A),XP(b)
      • R(g);SBLOCK::QAB(A)
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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).