MESON Chess Problem Database

Problem Display
PID: 162498 (5B2/8/8/3pk3/7N/5P2/2K5/3Q4 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Kozhakina, Alena Vladimirova

Sachmatija, 2002

5B2/8/8/3pk3/7N/5P2/2K5/3Q4

#2

5 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Qe2+?
      • 1...Kd4
        • 2.Sf5#
      • 1...Kf6
        • 2.Qe7#
      • 1...Kf4!
    • 1.Qd3?
      • 1...Ke6
        • 2.Qf5#
      • 1...Kf6
        • 2.Qf5#
      • 1...d4
        • 2.Qf5#
      • 1...Kf4!
  • Keys
    • 1.Qe1+!
      • 1...Kd4
        • 2.Qc3#
      • 1...Kf4
        • 2.Bh6#
      • 1...Kf6
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT::S(D)
        • K(b);OGATE,S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);P-FLIGHT::QAB1(A)
        • K(b);S_FLIGHT::QAR1(A)
        • P(a);SBLOCK::QAR1(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(A);CHECK
    • Vars
      • K(b);S_FLIGHT::QAB1(A)
      • K(b);S_FLIGHT::B(E)
      • K(b);OGATE,S_FLIGHT::QAB1(A)
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).