MESON Chess Problem Database

Problem Display
PID: 23100 (8/5K2/8/4pQpk/8/8/5bN1/8 w - - 0 1)

Lincoln, Robert A

Fun with Chess Miniatures, 1996

8/5K2/8/4pQpk/8/8/5bN1/8

#2

3 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Kh6
      • 2.Qg6#
    • 1...Bg1
      • 2.Qh3#
    • 1...Be3
      • 2.Qh3#
    • 1...Bd4
      • 2.Qh3#
    • 1...Bc5
      • 2.Qh3#
    • 1...Bb6
      • 2.Qh3#
    • 1...Ba7
      • 2.Qh3#
  • Tries
    • 1.Kf6?
      • threat
        • 2.Qxg5#
      • 1...Kh6
        • 2.Qg6#
      • 1...Be3
        • 2.Qh3#
      • 1...Bh4!
    • 1.Sf4+?
      • 1...Kh4
        • 2.Qh3#
      • 1...Kh6
        • 2.Qg6#
      • 1...exf4!
  • Keys
    • 1.Se3!
      • threat
        • 2.Qh7#
      • 1...Kh4
        • 2.Qg4#
      • 1...Kh6
        • 2.Qg6#
      • 1...Bxe3
        • 2.Qh3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • K(d);N_SPINP(c),P-FLIGHT::QAR1(B)
    • B(a);N_GUARD::QAR2(B)
    • B(a);N_GUARD,SBLOCK::QAR2(B)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Threat
        • QAR1(B),XP(c)
      • Vars
        • K(d);N_SPINP(c),P-FLIGHT::QAR1(B)
        • B(a);N_GUARD::QAR2(B)
      • Refutation
        • B(a);
    • Try
      • S(A);CHECK
      • Vars
        • K(d);N_SPINP(c),P-FLIGHT::QAR1(B)
      • Refutation
        • P(b);XS(A)
  • Actual
    • S(A);
    • Threat
      • QAR2(B)
    • Vars
      • K(d);N_SPINP(c),P-FLIGHT::QAR1(B)
      • B(a);N_GUARD,XS(A)::QAR2(B)
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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).