MESON Chess Problem Database

Problem Display
PID: 208004 (k1b5/pp2p3/N3P3/8/5p2/1Q6/8/KR6 w - - 0 1)

Heather, HE

Dubuque Chess Journal, 1873

k1b5/pp2p3/N3P3/8/5p2/1Q6/8/KR6

#2

5 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe6
      • 2.Qxb7#
    • 1...Bd7
      • 2.Qxb7#
    • 1...bxa6
      • 2.Qb8#
  • Tries
    • 1.Qd5?
      • 1...Bxe6
        • 2.Qxb7#
      • 1...Bd7
        • 2.Qxb7#
      • 1...f3!
  • Keys
    • 1.Qf3!
      • 1...Bxe6
        • 2.Qxb7#
      • 1...Bd7
        • 2.Qxb7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • B(f);N_GUARD,XP(E)::QAB1(C),XP(c)
    • B(f);N_GUARD::QAB1(C),XP(c)
    • P(c);OGATE,XS(D)::QAR1(C)
  • Tries
    • Try
      • Q(C);P_PINP(c)
      • Vars
        • B(f);N_GUARD,XP(E)::QAB1(C),XP(c)
        • B(f);N_GUARD::QAB1(C),XP(c)
      • Refutation
        • P(a);
  • Actual
    • Q(C);P_PINP(c)
    • Vars
      • B(f);N_GUARD,XP(E)::QAB1(C),XP(c)
      • B(f);N_GUARD::QAB1(C),XP(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).