MESON Chess Problem Database

Problem Display
PID: 177759 (5B2/8/8/4k2N/6Q1/8/8/3K4 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Sahs (Latvia), 1990

5B2/8/8/4k2N/6Q1/8/8/3K4

#2

4 + 1

6490 yacpdb 2018
5454 Near Snap 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Sg7?
      • 1...Kf6
        • 2.Qf5#
      • 1...Kd5!
  • Keys
    • 1.Sg3!
      • 1...Kd5
        • 2.Qe4#
      • 1...Kf6
        • 2.Qf5#

Anticipated by 189439(1911), 215521(1975)

FEATURES

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