MESON Chess Problem Database

Problem Display
PID: 213036 (8/3K4/3B1Pp1/3k4/PPppp3/7p/Q6P/8 w - - 0 1)

Sergiev, Stefan A

Land og Folk, 1967

8/3K4/3B1Pp1/3k4/PPppp3/7p/Q6P/8

#2

7 + 6

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qa1?
      • 1...c3
        • 2.Qa2#
      • 1...e3
        • 2.Qh1#
      • 1...d3
        • 2.Qe5#
      • 1...g5!
  • Keys
    • 1.Qf2!
      • 1...c3
        • 2.Qa2#
      • 1...e3
        • 2.Qf3#
      • 1...g5
        • 2.Qf5#
      • 1...d3
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);N_PINP(b)
      • Vars
        • P(b);OGATEB::QAB(A)
        • P(d);OGATEB::QAB(A)
        • P(c);OGATE::QAR1(A)
      • Refutation
        • P(f);
  • Actual
    • Q(A);N_PINP(b)
    • Vars
      • P(b);OGATEB::QAB(A)
      • P(d);OGATEB::QAB(A)
      • P(f);N_GUARD::QAR2(A)
      • P(c);OGATE::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).