MESON Chess Problem Database

Problem Display
PID: 187109 (1Q6/4N3/4n3/3N4/3pk2p/3p3P/8/5K2 w - - 0 1)

Sawionok, Aleksandr

Landeszeitung fur die Luneburger Heide, 2001

(First published on Sat Sep 22 2001)

1Q6/4N3/4n3/3N4/3pk2p/3p3P/8/5K2

#2

5 + 5

16210 Problemschach-Jahrbuch (2001) 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Sf4
      • 2.Qxf4#
    • 1...Sc5
      • 2.Qf4#
    • 1...Sg5
      • 2.Qf4#
    • 1...Sg7
      • 2.Qf4#
    • 1...Sd8
      • 2.Qf4#
    • 1...Sf8
      • 2.Qf4#
  • Tries
    • 1.Qg3?
      • threat
        • 2.Sf6#
      • 1...Sf4
        • 2.Qxf4#
      • 1...hxg3!
  • Keys
    • 1.Qh2!
      • 1...Kf3
        • 2.Qg2#
      • 1...Sf4
        • 2.Qxf4#
      • 1...d2
        • 2.Qe2#
      • 1...Sc5
        • 2.Qf4#
      • 1...Sg5
        • 2.Qf4#
      • 1...Sc7
        • 2.Qf4#
      • 1...Sg7
        • 2.Qf4#
      • 1...Sd8
        • 2.Qf4#
      • 1...Sf8
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(e);N_GUARD::QAR1(E),XS(e)
    • S(e);N_GUARD::QAR1(E)
  • Tries
    • Try
      • Q(E);
      • Threat
        • S(C)
      • Vars
        • S(e);N_GUARD::QAR1(E),XS(e)
      • Refutation
        • P(d);XQ(E)
  • Actual
    • Q(E);
    • Vars
      • K(c);S_FLIGHT::QAB1(E)
      • S(e);N_GUARD::QAR1(E),XS(e)
      • P(a);N_GUARD::QAR2(E)
      • S(e);N_GUARD::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).