MESON Chess Problem Database

Problem Display
PID: 143991 (Q7/5K2/1pNPP3/1b1k4/4p3/BP6/2P5/8 w - - 0 1)

Westberg, CE

Tidskrift for Schack, 1909

Q7/5K2/1pNPP3/1b1k4/4p3/BP6/2P5/8

#2

8 + 4

5454 Near Snap 2018
5454 Near Snap 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Ba4
      • 2.c4#
  • Keys
    • 1.Qh8!
      • threat
        • 2.Se7#
      • 1...Kxc6
        • 2.Qa8#
      • 1...Bxc6
        • 2.c4#
      • 1...e3
        • 2.Qh1#

This anticipates 190187(1913), 181200(1952)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(b);N_GUARD::P(A)
  • Actual
    • Q(H);
    • Threat
      • S(D)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(D)::QAB(H)
      • B(b);N_GUARD,SBLOCK,XS(D)::P(A)
      • P(a);OGATEB::QAB(H)
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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).