MESON Chess Problem Database

Problem Display
PID: 74930 (3N4/3Q4/1q1p1n1B/1Pbrr3/1RPkp2R/1B1N1P2/2K5/8 w - - 0 1)

Zuvic, Predrag

Problem Online, 2005

3N4/3Q4/1q1p1n1B/1Pbrr3/1RPkp2R/1B1N1P2/2K5/8

#2

11 + 8

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Qa5
      • 2.Sc6#
    • 1...Qa7
      • 2.Sc6#
    • 1...Qc6
      • 2.Sxc6#
    • 1...Qb8
      • 2.Sc6#
    • 1...Rf5
      • 2.Se6#
    • 1...Rh5
      • 2.Se6#
    • 1...Re6
      • 2.Sxe6#
  • Tries
    • 1.Qa7?
      • threat
        • 2.Qa1#
      • 1...Qxa7
        • 2.Sc6#
      • 1...Bxb4
        • 2.Sc6#
      • 1...Qa5
        • 2.Sc6#
      • 1...Qa6
        • 2.cxd5#
      • 1...Rg5!
  • Keys
    • 1.Qg7!
      • threat
        • 2.Qg1#
      • 1...Rg5
        • 2.Rxe4#
      • 1...Sg4
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • Q(f);N_GUARD::S(K)
    • Q(f);N_GUARD::S(K),XQ(f)
    • R(e);N_GUARD::S(K)
    • R(e);N_GUARD::S(K),XR(e)
  • Tries
    • Try
      • Q(J);
      • Threat
        • QAB(J)
      • Vars
        • Q(f);N_GUARD,XQ(J)::S(K)
        • B(c);P_SPINQ(f),XR(E)::S(K)
        • Q(f);N_GUARD,P_SPINB(c)::S(K)
        • Q(f);P_SPINB(c)::R(E)+P(F),XR(d)
      • Refutation
        • R(e);
  • Actual
    • Q(J);
    • Threat
      • QAB(J)
    • Vars
      • R(e);N_GUARD,P_SPINS(h)::R1(G),XP(b)
      • S(h);N_SPINP(b),P_SPINR(e)::S(K)
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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).