MESON Chess Problem Database

Problem Display
PID: 209066 (2B5/4p1r1/n5p1/3NPPp1/2PNk1p1/2Qpp1B1/6K1/6b1 w - - 0 1)

Janevski, Zivko

Sachova skladba, 2015

2B5/4p1r1/n5p1/3NPPp1/2PNk1p1/2Qpp1B1/6K1/6b1

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...gxf5
      • 2.Bxf5#
    • 1...e6
      • 2.Sf6#
  • Tries
    • 1.Sb3?
      • threat
        • 2.Qd4#
      • 1...e2
        • 2.Sd2#
      • 1...e6!
    • 1.Sb5?
      • threat
        • 2.Qd4#
      • 1...e6
        • 2.Sd6#
      • 1...e2!
    • 1.Bb7?
      • threat
        • 2.Sb4#
        • 2.Sb6#
        • 2.Sf6#
        • 2.Sc7#
        • 2.Sxe7#
      • 1...Sb4
        • 2.Sxb4#
        • 2.Sf6#
      • 1...Sc5
        • 2.Sf6#
      • 1...Sc7
        • 2.Sf6#
        • 2.Sxc7#
      • 1...Sb8
        • 2.Sf6#
      • 1...e6
        • 2.Sf6#
        • 2.Sc7#
        • 2.Se7#
      • 1...e2!
    • 1.fxg6?
      • threat
        • 2.Bf5#
      • 1...e6
        • 2.Sf6#
      • 1...Rf7!
  • Keys
    • 1.Se6!
      • threat
        • 2.Sxg5#
      • 1...Kxf5
        • 2.Qxd3#
      • 1...gxf5
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • P(h);OGATE,XP(H)::B(I),XP(h)
    • P(i);N_GUARD::S(F)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAR1(B)
      • Vars
        • P(c);N_GUARD::S(E)
      • Refutation
        • P(i);
    • Try
      • S(E);
      • Threat
        • QAR1(B)
      • Vars
        • P(i);N_GUARD::S(E)
      • Refutation
        • P(c);
    • Try
      • B(I);
      • Threat
        • DUALS(5)
      • Vars
        • S(g);::B(I)+S(F),DCHECK
      • Refutation
        • P(c);
    • Try
      • P(H);XP(h)
      • Threat
        • B(I)
      • Vars
        • P(i);N_GUARD::S(F)
      • Refutation
        • R(j);
  • Actual
    • S(E);
    • Threat
      • S(E),XP(f)
    • Vars
      • K(d);S_FLIGHT,XP(H)::QAB(B),XP(b)
      • P(h);SBLOCK,XP(H)::QAR1(B)
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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).