MESON Chess Problem Database

Problem Display
PID: 234743 (8/8/8/8/6N1/8/4K1kP/2Q2N1q w - - 0 1)

Lincoln, Robert A

Kudesnik, 2014

8/8/8/8/6N1/8/4K1kP/2Q2N1q

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kg1
      • 2.Sfe3#
    • 1...Qxf1+
      • 2.Qxf1#
  • Keys
    • 1.Qf4!
      • threat
        • 2.Qg3#
      • 1...Qxf1+
        • 2.Qxf1#
      • 1...Kg1
        • 2.Qf2#
      • 1...Kh3
        • 2.Qg3#
      • 1...Qxh2
        • 2.Qxh2#
      • 1...Qg1
        • 2.Qf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::QAR(A)+S(B)
    • Q(a);CHECK,OGATE,XS(B)::QAB1(A),XQ(a)
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • Q(a);CHECK,OGATE,XS(B)::QAB1(A),XQ(a)
      • K(b);P-FLIGHT::QAB1(A)
      • K(b);S_FLIGHT::QAR1(A)
      • Q(a);OGATE,XP(D)::QAR1(A),XQ(a)
      • Q(a);SBLOCK::QAB1(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).