MESON Chess Problem Database

Problem Display
PID: 168589 (8/3k4/2NP2K1/4P3/8/8/4B3/Q7 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Best Problems, 2003

8/3k4/2NP2K1/4P3/8/8/4B3/Q7

#2

6 + 1

6490 yacpdb 2018
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Bg4+?
      • 1...Ke8
        • 2.Qa8#
      • 1...Kxc6!
    • 1.Qa6?
      • 1...Ke8
        • 2.Qc8#
      • 1...Ke6!
    • 1.Qa7+?
      • 1...Ke6
        • 2.Bc4#
        • 2.Qf7#
      • 1...Kc8
        • 2.Bg4#
        • 2.Ba6#
        • 2.Qc7#
        • 2.d7#
      • 1...Ke8
        • 2.Qe7#
        • 2.Qf7#
      • 1...Kxc6!
  • Keys
    • 1.Qa5!
      • 1...Kxc6
        • 2.Qb5#
      • 1...Ke6
        • 2.Bg4#
      • 1...Kc8
        • 2.Qc7#
      • 1...Ke8
        • 2.Qd8#

This anticipates 234971(2009)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR(A)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);S_FLIGHT,XS(D)
  • Actual
    • Q(A);
    • Vars
      • K(a);OGATEB,S_FLIGHT,XS(D)::QAB1(A)
      • K(a);S_FLIGHT::B(B)
      • K(a);S_FLIGHT::QAR1(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).