MESON Chess Problem Database

Problem Display
PID: 18004 (8/8/2Q5/8/8/4N2K/5pB1/5qk1 w - - 0 1)

Lipton, Michael

The Problemist, 1952

8/8/2Q5/8/8/4N2K/5pB1/5qk1

#2

4 + 3

2012 Miniature Chess Problems from Many Countries 1981
3295 Einfuhrung in die Welt des Schachproblem 1984
14867 BCPS Library 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Qxg2+
      • 2.Qxg2#
  • Keys
    • 1.Qg6!
      • 1...Qxg2+
        • 2.Qxg2#
      • 1...Qe2
        • 2.Bf3#
      • 1...Qd3
        • 2.Be4#
      • 1...Qc4
        • 2.Be4#
      • 1...Qb5
        • 2.Bd5#
      • 1...Qa6
        • 2.Bc6#
      • 1...Qa1
        • 2.Bf3#
        • 2.Be4#
        • 2.Bd5#
        • 2.Bc6#
        • 2.Bb7#
        • 2.Ba8#
      • 1...Qb1
        • 2.Be4#
      • 1...Qc1
        • 2.Bf3#
        • 2.Be4#
        • 2.Bd5#
        • 2.Bc6#
        • 2.Bb7#
        • 2.Ba8#
      • 1...Qd1
        • 2.Bf3#
      • 1...Qe1
        • 2.Bf3#
        • 2.Be4#
        • 2.Bd5#
        • 2.Bc6#
        • 2.Bb7#
        • 2.Ba8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • Q(a);CHECK,OGATE,XB(A)::QAR1(D),XQ(a)
  • Actual
    • Q(D);
    • Vars
      • Q(a);CHECK,OGATE,P_SPINQ(a),XB(A)::QAR1(D),XQ(a)
      • Q(a);N_PINB(A)::QAR(D)+B(A)
      • Q(a);N_PINB(A),P_PINS(B)::QAR(D)+B(A)
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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).