MESON Chess Problem Database

Problem Display
PID: 211145 (1R4N1/2p1P2p/2np2qQ/2pk1P1B/3p1Pp1/3P4/8/K7 w - - 0 1)

Koci, Vladimir

Sachova skladba, 2018

1R4N1/2p1P2p/2np2qQ/2pk1P1B/3p1Pp1/3P4/8/K7

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qxh5
      • 2.Sf6#
      • 2.Qe6#
    • 1...Qf7
      • 2.Bxf7#
    • 1...Qe8
      • 2.Sf6#
      • 2.Qe6#
    • 1...Qg5
      • 2.Bf7#
      • 2.Qe6#
    • 1...Qe6
      • 2.Qxe6#
    • 1...Qf6
      • 2.Sxf6#
    • 1...Qg7
      • 2.Qe6#
    • 1...Sxe7
      • 2.Sxe7#
    • 1...g3
      • 2.Bf3#
    • 1...c4
      • 2.Rb5#
  • Tries
    • 1.Bxg6?
      • threat
        • 2.Sf6#
        • 2.Bf7#
        • 2.Qh1#
      • 1...Sxe7
        • 2.Sxe7#
        • 2.Qh1#
      • 1...Sxb8
        • 2.Qh1#
      • 1...hxg6
        • 2.Sf6#
        • 2.Qh1#
      • 1...Sb4
        • 2.Qh1#
      • 1...Sa5
        • 2.Qh1#
      • 1...Sa7
        • 2.Qh1#
      • 1...Sd8
        • 2.Qh1#
      • 1...c4
        • 2.Rb5#
      • 1...g3
        • 2.Sf6#
        • 2.Bf7#
      • 1...Se5!
    • 1.e8Q?
      • threat
        • 2.Qe4#
      • 1...Qxe8
        • 2.Sf6#
      • 1...c4
        • 2.Rb5#
      • 1...Qe6
        • 2.Qhxe6#
        • 2.Qexe6#
      • 1...Se5
        • 2.Se7#
      • 1...Se7
        • 2.Sxe7#
      • 1...Qxf5!
  • Keys
    • 1.e8S!
      • threat
        • 2.Sxc7#
      • 1...Qxe8
        • 2.Sf6#
      • 1...Sxb8
        • 2.Se7#
      • 1...Sb4
        • 2.Se7#
      • 1...Sa5
        • 2.Se7#
      • 1...Se5
        • 2.Se7#
      • 1...Sa7
        • 2.Se7#
      • 1...Se7
        • 2.Sxe7#
      • 1...Sd8
        • 2.Se7#
      • 1...c4
        • 2.Rb5#
      • 1...Qf7
        • 2.Bxf7#
      • 1...Qg7
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 3
  • Sets
    • Q(g);OGATE::B(E),XQ(g)
    • Q(g);OGATE::QAB1(F),XQ(g)
    • Q(g);N_GUARD::S(I),XQ(g)
    • Q(g);OGATE::QAB1(F)
    • S(e);XP(G)::S(I),XS(e)
    • P(b);OGATE::B(E)
    • P(c);OGATEB::R(H)
  • Tries
    • Try
      • B(E);XQ(g)
      • Threat
        • DUALS(3)
      • Vars
        • S(e);XR(H)::QAB(F)
        • S(e);::QAB(F)
        • P(c);OGATEB::R(H)
      • Refutation
        • S(e);
    • Try
      • P(G);
      • Threat
        • QAB1(G)
      • Vars
        • Q(g);N_GUARD,XQ(G)::S(I)
        • P(c);OGATEB::R(H)
        • S(e);N_GUARD::S(I)
        • S(e);N_GUARD::S(I),XS(e)
      • Refutation
        • Q(g);XP(D)
  • Actual
    • P(G);
    • Threat
      • S(G),XP(h)
    • Vars
      • Q(g);N_GUARD,XS(G)::S(I)
      • S(e);N_GUARD,XR(H)::S(I)
      • S(e);N_GUARD::S(I)
      • S(e);N_GUARD::S(I),XS(e)
      • P(c);OGATEB::R(H)
      • Q(g);OGATE::B(E),XQ(g)
      • Q(g);OGATE::QAB1(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).