MESON Chess Problem Database

Problem Display
PID: 136462 (2nn4/3Q1bp1/3P1Pp1/3k2N1/3P1p2/3K4/6R1/4b3 w - - 0 1)

Dikusarov, Andrey Nikolayovich

StrateGems, 1998

2nn4/3Q1bp1/3P1Pp1/3k2N1/3P1p2/3K4/6R1/4b3

#2

7 + 8

6490 yacpdb 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Se7
      • 2.dxe7#
  • Keys
    • 1.Se4!
      • threat
        • 2.Rg5#
      • 1...gxf6
        • 2.Sxf6#
      • 1...Bg3
        • 2.Sc3#
      • 1...Bh4
        • 2.Sc3#
      • 1...Be6
        • 2.Qb5#
      • 1...Se7
        • 2.dxe7#
      • 1...Sc6
        • 2.Qxf7#
      • 1...Se6
        • 2.Qb7#
      • 1...g5
        • 2.Rxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • S(g);OGATE::QAR(G)+P(E),XS(g)
  • Actual
    • S(D);
    • Threat
      • R(A)
    • Vars
      • P(f);XP(F)::S(D),XP(f)
      • B(a);N_GUARD::S(D)
      • B(e);SBLOCK::QAR2(G)
      • S(g);OGATE::QAR(G)+P(E),XS(g)
      • S(h);N_GUARD,SBLOCK::QAB(G),XB(e)
      • S(h);N_GUARD,SBLOCK::QAB(G)
      • P(d);::R(A),XP(d)
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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).