MESON Chess Problem Database

Problem Display
PID: 16197 (5n2/1K6/3N3N/2pk4/5Q2/8/8/8 w - - 0 1)

Neyndorff, Luke

StrateGems, 2000

5n2/1K6/3N3N/2pk4/5Q2/8/8/8

#2

4 + 3

5454 Near Snap 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Se8?
      • threat
        • 2.Sc7#
      • 1...Ke6
        • 2.Qd6#
      • 1...Se6
        • 2.Sf6#
      • 1...c4!
    • 1.Shf7?
      • threat
        • 2.Qe5#
        • 2.Qc4#
        • 2.Qe4#
      • 1...c4
        • 2.Qe5#
        • 2.Qxc4#
      • 1...Sg6
        • 2.Qc4#
        • 2.Qe4#
      • 1...Sd7
        • 2.Qc4#
        • 2.Qe4#
      • 1...Ke6!
  • Keys
    • 1.Sb5!
      • threat
        • 2.Sc7#
      • 1...Ke6
        • 2.Qd6#
      • 1...c4
        • 2.Qf5#
      • 1...Se6
        • 2.Sc3#

Anticipated by 106065(1993)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • S(B)
      • Vars
        • K(b);S_FLIGHT::QAR1(A)
        • S(c);SBLOCK::S(B)
      • Refutation
        • P(a);
    • Try
      • S(C);
      • Threat
        • DUALS(3)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • K(b);S_FLIGHT::QAR1(A)
      • P(a);SBLOCK::QAR2(A)
      • S(c);SBLOCK::S(B)
HTML5 logo

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).