MESON Chess Problem Database

Problem Display
PID: 258428 (8/r2NQ3/N2p4/2pk1Kn1/8/2P5/8/6B1 w - - 0 1)

Nield, Joshua

English Mechanic and World of Science, 1892

(First published on Fri Dec 30 1892)

8/r2NQ3/N2p4/2pk1Kn1/8/2P5/8/6B1

#2

6 + 5

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sf3
      • 2.Qe4#
    • 1...Sh3
      • 2.Qe4#
    • 1...Se4
      • 2.Qxe4#
    • 1...Sf7
      • 2.Qe4#
    • 1...Sh7
      • 2.Qe4#
    • 1...c4
      • 2.Sb4#
  • Keys
    • 1.Se5!
      • threat
        • 2.c4#
      • 1...dxe5
        • 2.Qxc5#
      • 1...c4
        • 2.Sb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • S(c);N_GUARD::QAB1(F)
    • S(c);N_GUARD::QAB1(F),XS(c)
    • P(a);N_GUARD,SBLOCK::S(D)
  • Actual
    • S(E);
    • Threat
      • P(B)
    • Vars
      • P(d);OGATE,XS(E)::QAR1(F),XP(a)
      • P(a);N_GUARD::S(D)
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).