MESON Chess Problem Database

Problem Display
PID: 276526 (8/3B4/6QP/8/7k/5b2/4n2K/8 w - - 0 1)

Moutecidis, Pavlos

Sorokin, Evgeny Pavlovich

Stella Polaris, 1970

8/3B4/6QP/8/7k/5b2/4n2K/8

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Bh1
      • 2.Qg4#
    • 1...Bg2
      • 2.Qg4#
    • 1...Be4
      • 2.Qg4#
    • 1...Bg4
      • 2.Qxg4#
    • 1...Bd5
      • 2.Qg4#
    • 1...Bh5
      • 2.Qf6#
    • 1...Bc6
      • 2.Qg4#
    • 1...Bb7
      • 2.Qg4#
    • 1...Ba8
      • 2.Qg4#
  • Keys
    • 1.Be8!
      • 1...Sc1
        • 2.Qg3#
      • 1...Bh1
        • 2.Qh5#
      • 1...Bg2
        • 2.Qh5#
      • 1...Be4
        • 2.Qh5#
      • 1...Bg4
        • 2.Qf6#
      • 1...Bd5
        • 2.Qh5#
      • 1...Bh5
        • 2.Qxh5#
      • 1...Bc6
        • 2.Qh5#
      • 1...Bb7
        • 2.Qh5#
      • 1...Ba8
        • 2.Qh5#
      • 1...Sg1
        • 2.Qg3#
      • 1...Sc3
        • 2.Qg3#
      • 1...Sg3
        • 2.Qxg3#
      • 1...Sd4
        • 2.Qg3#
      • 1...Sf4
        • 2.Qg3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 9
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • B(b);N_GUARD::QAR1(B)
    • B(b);N_GUARD::QAR1(B),XB(b)
    • B(b);SBLOCK::QAB(B)
  • Actual
    • B(D);
    • Vars
      • S(a);N_GUARD::QAB1(B)
      • B(b);N_GUARD::QAR1(B)
      • B(b);SBLOCK::QAB(B)
      • B(b);N_GUARD::QAR1(B),XB(b)
      • S(a);N_GUARD::QAB1(B),XS(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).