MESON Chess Problem Database

Problem Display
PID: 83468 (7q/4R3/p4pp1/2ppNkBp/r7/b1p5/2KnNnQ1/8 w - - 0 1)

Ellerman, Arnoldo

Good Companions (December), 1916

7q/4R3/p4pp1/2ppNkBp/r7/b1p5/2KnNnQ1/8

#2

6 + 13

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...c4
      • 2.Sd4#
  • Keys
    • 1.Sf7!
      • threat
        • 2.Sd6#
      • 1...fxg5
        • 2.Qxg5#
      • 1...Qb8
        • 2.Sh6#
      • 1...Qd8
        • 2.Sh6#
      • 1...Rg4
        • 2.Qxd5#
      • 1...Sc4
        • 2.Qf3#
      • 1...Sde4
        • 2.Qf3#
      • 1...Sfe4
        • 2.Qh3#
      • 1...Sg4
        • 2.Sg3#
      • 1...c4
        • 2.Sd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • P(f);N_GUARD,S_CUTR(e)::S(B)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • P(k);OGATE,XB(E)::QAR1(C),XP(k)
      • Q(m);N_GUARD::S(D)
      • R(e);SBLOCK::QAR2(C),XP(g)
      • S(a);N_GUARD,S_CUTR(e)::QAR2(C)
      • S(b);N_GUARD,S_CUTR(e)::QAB(C)
      • S(b);SBLOCK::S(B)
      • P(f);N_GUARD,S_CUTR(e)::S(B)
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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).