MESON Chess Problem Database

Problem Display
PID: 54293 (8/8/2K5/3Pk1B1/2p5/6b1/5Q2/8 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Problem Observer, 2004

8/8/2K5/3Pk1B1/2p5/6b1/5Q2/8

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Bf4
      • 2.Qxf4#
    • 1...Bh4
      • 2.Qf4#
  • Tries
    • 1.Qe2+?
      • 1...Kd4
        • 2.Qe3#
      • 1...Kf5!
  • Keys
    • 1.Qf3!
      • threat
        • 2.Bf6#
      • 1...Kd4
        • 2.Qe3#
      • 1...Bf4
        • 2.Qxf4#
      • 1...Bh4
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD::QAB1(A),XB(a)
    • B(a);N_GUARD::QAB1(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);S_FLIGHT::QAB1(A)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(A);
    • Threat
      • B(C)
    • Vars
      • K(c);S_FLIGHT::QAB1(A)
      • B(a);N_GUARD::QAB1(A),XB(a)
      • B(a);N_GUARD::QAB1(A)
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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).