MESON Chess Problem Database

Problem Display
PID: 161880 (1B6/8/3K4/6p1/8/6k1/4Q3/6N1 w - - 0 1)

Zujevas, Nikolajus

Sachmatija, 2009

1B6/8/3K4/6p1/8/6k1/4Q3/6N1

#2

4 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Ke6#
      • 2.Qf3#
  • Tries
    • 1.Qf3+?
      • 1...Kh4
        • 2.Qh3#
      • 1...Kh2!
    • 1.Qg2+?
      • 1...Kf4
        • 2.Qf3#
      • 1...Kh4
        • 2.Qh3#
      • 1...Kxg2!
  • Keys
    • 1.Ba7!
      • 1...Kf4
        • 2.Qf3#
      • 1...Kh4
        • 2.Bf2#
      • 1...g4
        • 2.Qf2#

FEATURES

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