MESON Chess Problem Database

Problem Display
PID: 47043 (8/2p5/6Q1/pk6/N2b4/1K6/8/8 w - - 0 1)

Lincoln, Robert A

Still More Fun with Chess Miniatures, 2002

8/2p5/6Q1/pk6/N2b4/1K6/8/8

#2

3 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Bc5
      • 2.Sc3#
    • 1...c5
      • 2.Qb6#
    • 1...c6
      • 2.Qd3#
  • Tries
    • 1.Qe8+?
      • 1...c6
        • 2.Qe2#
      • 1...Ka6!
  • Keys
    • 1.Qe6!
      • threat
        • 2.Qc4#
      • 1...Bc5
        • 2.Sc3#
      • 1...c5
        • 2.Qb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • B(a);N_GUARD,SBLOCK::S(B)
    • P(d);N_GUARD,S_CUTB(a)::QAR1(C)
    • P(d);SBLOCK::QAB(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • P(d);P_SPINP(d),SBLOCK::QAB(C)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(C);
    • Threat
      • QAB1(C)
    • Vars
      • B(a);N_GUARD,SBLOCK::S(B)
      • P(d);N_GUARD,S_CUTB(a)::QAR1(C)
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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).