MESON Chess Problem Database

Problem Display
PID: 15622 (K2b4/8/kN6/P7/Q7/3n4/8/8 w - - 0 1)

Lincoln, Robert A

Newark Star-Ledger, 1986

K2b4/8/kN6/P7/Q7/3n4/8/8

#2

4 + 3

2838 Fun with Chess Miniatures 1996

SOLUTION

  • SOUND
  • Tries
    • 1.Sd7?
      • threat
        • 2.Sb8#
      • 1...Bxa5
        • 2.Qc4#
      • 1...Bc7!
  • Keys
    • 1.Sd5!
      • 1...Bxa5
        • 2.Qc4#
      • 1...Bh4
        • 2.Sc7#
      • 1...Bg5
        • 2.Sc7#
      • 1...Bb6
        • 2.axb6#
      • 1...Bf6
        • 2.Sc7#
      • 1...Bc7
        • 2.Sxc7#
      • 1...Be7
        • 2.Sc7#
      • 1...Sc1
        • 2.Sb4#
      • 1...Se1
        • 2.Sb4#
      • 1...Sb2
        • 2.Sb4#
      • 1...Sf2
        • 2.Sb4#
      • 1...Sb4
        • 2.Sxb4#
      • 1...Sf4
        • 2.Sb4#
      • 1...Sc5
        • 2.Sb4#
      • 1...Se5
        • 2.Sb4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 15
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • B(c);P_SPINB(c),SBLOCK,XP(B)::QAB(A)
      • Refutation
        • B(c);
  • Actual
    • S(C);
    • Vars
      • B(c);P_SPINB(c),SBLOCK,XP(B)::QAB(A)
      • B(c);N_GUARD::S(C)
      • B(c);OGATE::QAR(A)+P(B),XB(c)
      • B(c);N_GUARD::S(C),XB(c)
      • S(a);N_GUARD::S(C)
      • S(a);N_GUARD::S(C),XS(a)
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).