MESON Chess Problem Database

Problem Display
PID: 117047 (Q5N1/8/4k2K/4P3/8/8/4R3/4B3 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Boletim da UBP, 1996

Q5N1/8/4k2K/4P3/8/8/4R3/4B3

#2

6 + 1

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kf7
      • 2.e6#
  • Tries
    • 1.Sf6?
      • 1...Ke7
        • 2.Qe8#
      • 1...Kf7
        • 2.Qe8#
      • 1...Kf5!
    • 1.Bd2?
      • 1...Kf5
        • 2.Qc8#
      • 1...Kf7
        • 2.e6#
      • 1...Kd7!
    • 1.Qc8+?
      • 1...Kf7
        • 2.Rf2#
        • 2.e6#
      • 1...Kd5!
    • 1.Qd8?
      • 1...Kf7
        • 2.e6#
      • 1...Kf5!
  • Keys
    • 1.Bg3!
      • 1...Kf5
        • 2.Qc8#
      • 1...Kd7
        • 2.e6#
      • 1...Kf7
        • 2.e6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);OGATE,S_FLIGHT::P(C)
  • Tries
    • Try
      • S(F);
      • Vars
        • K(a);P-FLIGHT::QAR1(E)
        • K(a);S_FLIGHT::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(A);
      • Vars
        • K(a);S_FLIGHT::QAB(E)
        • K(a);OGATE,S_FLIGHT::P(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(a);OGATE,S_FLIGHT::P(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(A);
    • Vars
      • K(a);S_FLIGHT::QAB(E)
      • K(a);OGATE,S_FLIGHT::P(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).