MESON Chess Problem Database

Problem Display
PID: 179253 (1Q1b4/3k4/1p3p2/3K3B/1B6/8/8/8 w - - 0 1)

Zimmer, Eligiusz

Problem Observer, 2010

1Q1b4/3k4/1p3p2/3K3B/1B6/8/8/8

#2

4 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Bc7
      • 2.Be8#
      • 2.Qe8#
    • 1...Be7
      • 2.Be8#
  • Tries
    • 1.Be2?
      • threat
        • 2.Bb5#
      • 1...b5
        • 2.Bxb5#
      • 1...Ke8!
  • Keys
    • 1.Be7!
      • threat
        • 2.Qxd8#
      • 1...Kxe7
        • 2.Qd6#
      • 1...Bxe7
        • 2.Be8#
      • 1...Bc7
        • 2.Qe8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(d);::B(C)
  • Tries
    • Try
      • B(C);
      • Threat
        • B(C)
      • Vars
        • P(a);::B(C),XP(a)
      • Refutation
        • K(c);P_SPINB(d),S_FLIGHT
  • Actual
    • B(A);
    • Threat
      • QAR1(D),XB(d)
    • Vars
      • K(c);P-FLIGHT,XB(A)::QAB1(D)
      • B(d);SBLOCK,XB(A)::B(C)
      • B(d);OGATE,SBLOCK::QAB1(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).