MESON Chess Problem Database

Problem Display
PID: 268706 (4N1R1/n4p1K/R4p1B/5k2/4b1N1/3n4/2Q5/b4r2 w - - 0 1)

Gavriliv, Evgeni M

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Probleemblad, 1986

4N1R1/n4p1K/R4p1B/5k2/4b1N1/3n4/2Q5/b4r2

#2

7 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Be5
      • 2.Se3#
    • 1...Sb2
      • 2.Rxf6#
    • 1...Se5
      • 2.Se3#
      • 2.Rxf6#
    • 1...Sb5
      • 2.Qc8#
    • 1...Sc8
      • 2.Qxc8#
  • Tries
    • 1.Qe2?
      • threat
        • 2.Sg7#
      • 1...Bf3
        • 2.Sd6#
      • 1...Rf3!
  • Keys
    • 1.Qc4!
      • threat
        • 2.Sd6#
      • 1...Be5
        • 2.Se3#
      • 1...Bd5
        • 2.Sg7#
      • 1...Sb5
        • 2.Qc8#
      • 1...Sc8
        • 2.Qxc8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(a);SBLOCK::S(B)
    • S(c);P_SPINB(d),S_CUTB(a)::R1(C),XP(f)
    • S(g);N_GUARD::QAB(A)
    • S(g);N_GUARD::QAB(A),XS(g)
  • Tries
    • Try
      • Q(A);
      • Threat
        • S(F)
      • Vars
        • B(d);::S(F)
      • Refutation
        • R(b);
  • Actual
    • Q(A);
    • Threat
      • S(F)
    • Vars
      • B(a);SBLOCK::S(B)
      • B(d);::S(F)
      • S(g);N_GUARD::QAB(A)
      • S(g);N_GUARD::QAB(A),XS(g)
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).