MESON Chess Problem Database

Problem Display
PID: 29675 (K5Q1/1pB2n2/4b3/1N1k4/R7/3N3n/8/2R3bq w - - 0 1)

Solokhin, Sergey

4th Comm., Barulin-100 MT, 1999

K5Q1/1pB2n2/4b3/1N1k4/R7/3N3n/8/2R3bq

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Qg2
      • 2.Qxg2#
    • 1...Bh2
      • 2.Rc5#
      • 2.Rd4#
    • 1...Bd4
      • 2.Rxd4#
    • 1...Bc5
      • 2.Rxc5#
    • 1...Sf2
      • 2.Sf4#
      • 2.Rc5#
      • 2.Rd4#
    • 1...Sf4
      • 2.Sxf4#
    • 1...Shg5
      • 2.Sf4#
  • Tries
    • 1.Qg6?
      • threat
        • 2.Sb4#
      • 1...Bc5
        • 2.Rxc5#
      • 1...Qe4
        • 2.Qxe4#
      • 1...Bf5
        • 2.Sc3#
      • 1...Sd6!
  • Keys
    • 1.Qe8!
      • threat
        • 2.Sc3#
      • 1...Bd4
        • 2.Rxd4#
      • 1...Bd7
        • 2.Sb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • Q(b);N_GUARD::QAB(G),XQ(b)
    • B(a);N_GUARD::R1(C),XB(a)
    • B(a);N_GUARD::R1(A),XB(a)
    • S(c);N_GUARD::S(B),XS(c)
    • S(c);N_GUARD::S(B)
  • Tries
    • Try
      • Q(G);
      • Threat
        • S(B)
      • Vars
        • B(a);N_GUARD::R1(A),XB(a)
        • Q(b);N_GUARD::QAB1(G),XQ(b)
        • B(e);::S(D)
      • Refutation
        • S(g);
  • Actual
    • Q(G);
    • Threat
      • S(D)
    • Vars
      • B(a);N_GUARD::R1(C),XB(a)
      • B(e);::S(B)
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).