MESON Chess Problem Database

Problem Display
PID: 264890 (r1N3B1/pRn5/4p1Q1/8/kP2n3/3N1r2/1K3p2/4R2q w - - 0 1)

Uris, Miguel

Coello-75 JT (Problemas), 2017

r1N3B1/pRn5/4p1Q1/8/kP2n3/3N1r2/1K3p2/4R2q

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qg2
      • 2.Ra1#
    • 1...Qh2
      • 2.Ra1#
    • 1...Qh3
      • 2.Ra1#
    • 1...Qh4
      • 2.Ra1#
    • 1...Qh5
      • 2.Ra1#
    • 1...Qh6
      • 2.Ra1#
    • 1...Qh7
      • 2.Ra1#
    • 1...Sd2
      • 2.Sc5#
    • 1...Sc3
      • 2.Sc5#
    • 1...Sg3
      • 2.Sc5#
    • 1...Sc5
      • 2.Sxc5#
    • 1...Sg5
      • 2.Sc5#
    • 1...Sd6
      • 2.Sc5#
    • 1...Sf6
      • 2.Sc5#
    • 1...Sd5
      • 2.Qe8#
    • 1...Sa6
      • 2.Qe8#
    • 1...Se8
      • 2.Qxe8#
    • 1...f1S
      • 2.Ra1#
    • 1...f1B
      • 2.Ra1#
    • 1...e5
      • 2.Bb3#
  • Tries
    • 1.Qe8+?
      • 1...Sb5
        • 2.Qxb5#
      • 1...Sxe8!
  • Keys
    • 1.Qh5!
      • threat
        • 2.Qa5#
      • 1...Qxh5
        • 2.Ra1#
      • 1...Rf5
        • 2.Qd1#
      • 1...Sc5
        • 2.Sxc5#
      • 1...Sg5
        • 2.Sc5#
      • 1...Sb5
        • 2.Qxb5#
      • 1...Sd5
        • 2.Qe8#
      • 1...e5
        • 2.Bb3#
      • 1...a5
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 15
  • Sets
    • Q(a);N_GUARD::R(A)
    • Q(a);N_GUARD,SBLOCK::R(A)
    • S(e);N_GUARD::S(C)
    • S(e);N_GUARD::S(C),XS(e)
    • S(h);N_GUARD::QAB(E)
    • S(h);N_GUARD::QAB(E),XS(h)
    • P(b);S_CUTQ(a)::R(A)
    • P(f);OGATE::B(H)
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • S(h);N_GUARD,P_SPINS(h)::QAB1(E),XS(h)
      • Refutation
        • S(h);XQ(E)
  • Actual
    • Q(E);
    • Threat
      • QAR1(E)
    • Vars
      • Q(a);N_GUARD,XQ(E)::R(A)
      • R(c);OGATE::QAB(E)
      • S(e);N_GUARD::S(C),XS(e)
      • S(e);N_GUARD::S(C)
      • S(h);N_GUARD::QAB1(E),XS(h)
      • S(h);N_GUARD::QAB(E)
      • P(f);OGATE::B(H)
      • P(g);N_GUARD::S(G)
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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).