MESON Chess Problem Database

Problem Display
PID: 160000 (3nQ3/3p1p1R/K7/1B1k3P/6p1/BPP5/4PP2/5nbq w - - 0 1)

Dikusarov, Andrey Nikolayovich

Best Problems, 2011

3nQ3/3p1p1R/K7/1B1k3P/6p1/BPP5/4PP2/5nbq

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qh2
      • 2.e4#
    • 1...Qh3
      • 2.e4#
    • 1...Qh4
      • 2.e4#
    • 1...Qxh5
      • 2.e4#
    • 1...Sc6
      • 2.Bc4#
    • 1...d6
      • 2.Bc4#
    • 1...f5
      • 2.Rxd7#
    • 1...f6
      • 2.Rxd7#
  • Keys
    • 1.f4!
      • threat
        • 2.Qe5#
      • 1...Qxh5
        • 2.e4#
      • 1...gxf4 ep
        • 2.e4#
      • 1...Se6
        • 2.Qa8#
      • 1...Qe4
        • 2.Qxd7#
      • 1...Bd4
        • 2.c4#
      • 1...Sc6
        • 2.Bc4#
      • 1...d6
        • 2.Bc4#
      • 1...f6
        • 2.Rxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • Q(c);N_GUARD::P(A)
    • Q(c);N_GUARD,XP(G)::P(A)
    • S(h);SBLOCK::B(F)
    • P(f);::B(F)
    • P(g);OGATE::R(I),XP(f)
  • Actual
    • P(B);
    • Threat
      • QAR1(J)
    • Vars
      • Q(c);N_GUARD,XP(G)::P(A)
      • P(d);EP,S_CUTQ(c),XP(B)::P(A)
      • S(h);OGATE,SBLOCK::QAB(J)
      • Q(c);SBLOCK::QAR2(J),XP(f)
      • B(b);SBLOCK::P(E)
      • S(h);SBLOCK::B(F)
      • P(f);::B(F)
      • P(g);OGATE::R(I),XP(f)
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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).