MESON Chess Problem Database

Problem Display
PID: 163156 (3n1N2/r7/3p1B2/5kP1/4RN2/3P3P/B3PbK1/8 w - - 0 1)

Placanico, Pietro L

Best Problems, 2013

3n1N2/r7/3p1B2/5kP1/4RN2/3P3P/B3PbK1/8

#2

10 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Sc6
      • 2.Be6#
    • 1...Se6
      • 2.Bxe6#
    • 1...Sb7
      • 2.Be6#
    • 1...Sf7
      • 2.Be6#
  • Tries
    • 1.Sd5?
      • threat
        • 2.Rf4#
      • 1...Ra4
        • 2.Se7#
      • 1...Be3
        • 2.Sxe3#
      • 1...Bg3
        • 2.Se3#
      • 1...Se6!
    • 1.S4e6?
      • threat
        • 2.Rf4#
      • 1...Sxe6
        • 2.Bxe6#
      • 1...Ra4
        • 2.Sg7#
      • 1...Bg3
        • 2.Sd4#
      • 1...Be3!
    • 1.S4g6?
      • threat
        • 2.Rf4#
      • 1...Ra4
        • 2.Se7#
      • 1...Be3
        • 2.Sh4#
      • 1...Se6
        • 2.Bxe6#
      • 1...Bg3!
    • 1.Re5+?
      • 1...Kxf4
        • 2.Sg6#
      • 1...dxe5!
  • Keys
    • 1.Sh5!
      • threat
        • 2.Rf4#
      • 1...Ra4
        • 2.Sg7#
      • 1...Be3
        • 2.Sg3#
      • 1...Bg3
        • 2.Sxg3#
      • 1...Se6
        • 2.Bxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • S(e);N_GUARD::B(A)
    • S(e);N_GUARD::B(A),XS(e)
  • Tries
    • Try
      • S(G);
      • Threat
        • R1(F)
      • Vars
        • R(d);N_GUARD::S(G)
        • B(a);N_GUARD::S(G),XB(a)
        • B(a);N_GUARD::S(G)
      • Refutation
        • S(e);
    • Try
      • S(G);
      • Threat
        • R1(F)
      • Vars
        • S(e);OGATE,XS(G)::B(A),XS(e)
        • R(d);N_GUARD::S(G)
        • B(a);N_GUARD::S(G)
      • Refutation
        • B(a);
    • Try
      • S(G);
      • Threat
        • R1(F)
      • Vars
        • R(d);N_GUARD::S(G)
        • B(a);N_GUARD::S(G)
        • S(e);N_GUARD::B(A),XS(e)
      • Refutation
        • B(a);
    • Try
      • R(F);CHECK
      • Vars
        • K(b);P-FLIGHT,XS(G)::S(J)
      • Refutation
        • P(c);XR(F)
  • Actual
    • S(G);
    • Threat
      • R1(F)
    • Vars
      • R(d);N_GUARD::S(G)
      • B(a);N_GUARD::S(G)
      • B(a);N_GUARD::S(G),XB(a)
      • S(e);N_GUARD::B(A),XS(e)
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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).