MESON Chess Problem Database

Problem Display
PID: 228628 (8/4R3/1NNn1nK1/8/4B3/2P1k1P1/1R6/8 w - - 0 1)

Coello Alonso, Jose Antonio

Problem Observer, 2019

8/4R3/1NNn1nK1/8/4B3/2P1k1P1/1R6/8

#2

8 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Sc4
      • 2.Sxc4#
    • 1...Sb5
      • 2.Sc4#
    • 1...Sf5
      • 2.Sc4#
    • 1...Sb7
      • 2.Sc4#
    • 1...Sf7
      • 2.Sc4#
    • 1...Sc8
      • 2.Sc4#
    • 1...Sde8
      • 2.Sc4#
    • 1...Sg4
      • 2.Sd5#
    • 1...Sd5
      • 2.Sxd5#
    • 1...Sh5
      • 2.Sd5#
    • 1...Sd7
      • 2.Sd5#
    • 1...Sh7
      • 2.Sd5#
    • 1...Sfe8
      • 2.Sd5#
    • 1...Sg8
      • 2.Sd5#
  • Keys
    • 1.Se5!
      • 1...Kxe4
        • 2.Re2#
      • 1...Sdxe4
        • 2.Sbc4#
      • 1...Sfxe4
        • 2.Sd5#
      • 1...Sc4
        • 2.Sexc4#
      • 1...Sb5
        • 2.Sec4#
      • 1...Sf5
        • 2.Sec4#
      • 1...Sb7
        • 2.Sec4#
      • 1...Sf7
        • 2.Sec4#
      • 1...Sc8
        • 2.Sec4#
      • 1...Sde8
        • 2.Sec4#
      • 1...Sg4
        • 2.Sxg4#
      • 1...Sd5
        • 2.Sg4#
      • 1...Sh5
        • 2.Sg4#
      • 1...Sd7
        • 2.Sg4#
      • 1...Sh7
        • 2.Sg4#
      • 1...Sfe8
        • 2.Sg4#
      • 1...Sg8
        • 2.Sg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 7
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(b);N_GUARD::S(E),XS(b)
    • S(b);N_GUARD::S(E)
    • S(c);N_GUARD::S(E)
    • S(c);N_GUARD::S(E),XS(c)
  • Actual
    • S(F);
    • Vars
      • K(a);P-FLIGHT,XB(D)::R(A)
      • S(b);N_GUARD,SBLOCK,XB(D)::S(E)
      • S(c);N_GUARD,SBLOCK,XB(D)::S(E)
      • S(b);N_GUARD::S(F),XS(b)
      • S(b);N_GUARD::S(F)
      • S(c);N_GUARD::S(F),XS(c)
      • S(c);N_GUARD::S(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).