MESON Chess Problem Database

Problem Display
PID: 272536 (4RN1n/7N/3nBp2/4p1pp/5k2/8/4Q2K/8 w - - 0 1)

Kuznetsov, Pavel G

Shakhmatnaya kompozitsiya, 1998

4RN1n/7N/3nBp2/4p1pp/5k2/8/4Q2K/8

#2

6 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Sg6
      • 2.Sxg6#
    • 1...Sf7
      • 2.Sg6#
  • Tries
    • 1.Bh3?
      • threat
        • 2.Se6#
      • 1...e4
        • 2.Qf2#
      • 1...g4!
    • 1.Bd5?
      • threat
        • 2.Qf3#
      • 1...Kf5
        • 2.Qf3#
      • 1...Se4
        • 2.Qxe4#
      • 1...g4
        • 2.Qf2#
      • 1...e4!
  • Keys
    • 1.Bf5!
      • threat
        • 2.Qf2#
      • 1...Kxf5
        • 2.Qf3#
      • 1...Sxf5
        • 2.Se6#
      • 1...Se4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • S(g);N_GUARD::S(F),XS(g)
    • S(g);N_GUARD::S(F)
  • Tries
    • Try
      • B(C);
      • Threat
        • S(F)
      • Vars
        • P(b);::QAR2(A)
      • Refutation
        • P(c);
    • Try
      • B(C);
      • Threat
        • QAR1(A)
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
        • S(e);N_GUARD::QAR1(A),XS(e)
        • P(c);SBLOCK::QAR2(A)
      • Refutation
        • P(b);
  • Actual
    • B(C);
    • Threat
      • QAR2(A)
    • Vars
      • K(a);N_GUARD,P-FLIGHT,XB(C)::QAR2(A)
      • S(e);SBLOCK,XB(C)::S(F)
      • S(e);N_GUARD::QAR1(A),XS(e)
HTML5 logo

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).