MESON Chess Problem Database

Problem Display
PID: 59333 (2b4K/r5pN/r6p/3Qpk2/1p3NR1/1B1pp2P/8/b2nq1n1 w - - 0 1)

Chepizhni, Viktor Ivanovich

Kosolapov, Nikolai

Loshinski, Lev Ilich

1st Prize, Shakhmaty v SSSR, 1966

2b4K/r5pN/r6p/3Qpk2/1p3NR1/1B1pp2P/8/b2nq1n1

#2

7 + 14

3772 FIDE Album (1965-1967) 1976
6167 Viktor Chepizhny 2007

SOLUTION

  • SOUND
  • Sets
    • 1...d2
      • 2.Bc2#
  • Tries
    • 1.Se2?
      • threat
        • 2.Qe4#
      • 1...Sf2
        • 2.Sg3#
      • 1...Sc3
        • 2.Sd4#
      • 1...Bb7!
    • 1.Sh5?
      • threat
        • 2.Qe4#
      • 1...Bb7
        • 2.Sxg7#
      • 1...Sf2
        • 2.Sg3#
      • 1...Sc3!
    • 1.Se6?
      • threat
        • 2.Qe4#
      • 1...Bb7
        • 2.Sxg7#
      • 1...Sc3
        • 2.Sd4#
      • 1...Sf2!
  • Keys
    • 1.Sg6!
      • threat
        • 2.Qe4#
      • 1...Bb7
        • 2.Se7#
      • 1...Sf2
        • 2.Sh4#
      • 1...Sc3
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(e);OGATEB::B(A)
  • Tries
    • Try
      • S(C);
      • Threat
        • QAB1(E)
      • Vars
        • S(b);S_CUTQ(c)::S(C)
        • S(b);S_CUTB(a)::S(C)
      • Refutation
        • B(n);
    • Try
      • S(C);
      • Threat
        • QAB1(E)
      • Vars
        • B(n);S_CUTR(l)::S(C),XP(m)
        • S(b);S_CUTQ(c)::S(C)
      • Refutation
        • S(b);
    • Try
      • S(C);
      • Threat
        • QAB1(E)
      • Vars
        • B(n);S_CUTR(l)::S(C),XP(m)
        • S(b);S_CUTB(a)::S(C)
      • Refutation
        • S(b);
  • Actual
    • S(C);
    • Threat
      • QAB1(E)
    • Vars
      • B(n);S_CUTR(l)::S(C)
      • S(b);S_CUTQ(c)::S(C)
      • S(b);S_CUTB(a)::QAR1(E),XP(h)
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).