MESON Chess Problem Database

Problem Display
PID: 106523 (6N1/5p2/1p2R3/1B1kn2K/N1p1r1P1/1pQ1p3/1B2P3/8 w - - 0 1)

Hernitz, Zvonimir

Praca, 1955

6N1/5p2/1p2R3/1B1kn2K/N1p1r1P1/1pQ1p3/1B2P3/8

#2

9 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rf4
      • 2.Qxe5#
    • 1...Rxg4
      • 2.Qxe5#
  • Tries
    • 1.Bxc4+?
      • 1...Rxc4
        • 2.Qxe5#
      • 1...Sxc4!
    • 1.Rxe5+?
      • 1...Rxe5+
        • 2.Qxe5#
      • 1...Kd6!
  • Keys
    • 1.Rf6!
      • threat
        • 2.Se7#
      • 1...Rxg4
        • 2.Qxe5#
      • 1...Sxg4
        • 2.Bc6#
      • 1...Rd4
        • 2.Qxd4#
      • 1...Rf4
        • 2.Qxe5#
      • 1...Sd3
        • 2.Bc6#
      • 1...Sf3
        • 2.Bc6#
      • 1...Sc6
        • 2.Bxc6#
      • 1...Sg6
        • 2.Bc6#
      • 1...Sd7
        • 2.Bc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • R(d);N_GUARD::QAR1(C),XS(f)
    • R(d);N_GUARD,XP(E)::QAR1(C),XS(f)
  • Tries
    • Try
      • B(F);CHECK,XP(c)
      • Vars
        • R(d);SBLOCK,XB(F)::QAR1(C),XS(f)
      • Refutation
        • S(f);XB(F)
    • Try
      • R(H);CHECK,XS(f)
      • Vars
        • R(d);CHECK,OGATE,XR(H)::QAR1(C),XR(d)
      • Refutation
        • K(e);P-FLIGHT
  • Actual
    • R(H);
    • Threat
      • S(I)
    • Vars
      • R(d);N_GUARD,XP(E)::QAR1(C),XS(f)
      • S(f);N_GUARD,XP(E)::B(F)
      • R(d);N_GUARD::QAR1(C),XR(d)
      • R(d);N_GUARD::QAR1(C),XS(f)
      • S(f);N_GUARD::B(F)
      • S(f);N_GUARD::B(F),XS(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).