MESON Chess Problem Database

Problem Display
PID: 134386 (4bq1r/5p2/1pp5/b7/1p3PNp/1RQP2kP/5R2/5BK1 w - - 0 1)

Gladkikh, Valeri V

3rd Comm., Shakhmaty v SSSR, 1978

4bq1r/5p2/1pp5/b7/1p3PNp/1RQP2kP/5R2/5BK1

#2

9 + 10

273 Mat Plus 2007

SOLUTION

  • SOUND
  • Tries
    • 1.Rg2+?
      • 1...Kxh3
        • 2.Sf2#
      • 1...Kxf4
        • 2.Qf6#
      • 1...Kf3!
    • 1.Qe5?
      • threat
        • 2.Qe3#
        • 2.d4#
        • 2.f5#
      • 1...Qd6
        • 2.Qe3#
        • 2.d4#
      • 1...Qh6
        • 2.Qe3#
        • 2.d4#
      • 1...Qe7
        • 2.d4#
      • 1...Qg7
        • 2.Qe3#
        • 2.d4#
      • 1...f5
        • 2.Qe3#
        • 2.d4#
      • 1...f6
        • 2.Qe3#
        • 2.d4#
      • 1...Qc5!
    • 1.Qxc6?
      • threat
        • 2.Rf3#
        • 2.Qg2#
        • 2.Qf3#
        • 2.d4#
      • 1...Qc5
        • 2.Qg2#
        • 2.Qf3#
      • 1...Qe7
        • 2.Rf3#
        • 2.Qg2#
        • 2.Qf3#
      • 1...Bxc6!
  • Keys
    • 1.Qg7!
      • threat
        • 2.d4#
      • 1...Qc5
        • 2.Se5#
      • 1...Qe7
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • K(a);P-FLIGHT,XP(G)::S(I)
        • K(a);S_FLIGHT,XP(H)::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(E);
      • Threat
        • DUALS(3)
      • Vars
        • Q(i);::R(D)+P(F)
      • Refutation
        • Q(i);P_PINR(C)
    • Try
      • Q(E);XP(f)
      • Threat
        • DUALS(4)
      • Refutation
        • B(h);XQ(E)
  • Actual
    • Q(E);
    • Threat
      • R(D)+P(F)
    • Vars
      • Q(i);N_GUARD,P_PINR(C)::QAR(E)+S(I)
      • Q(i);N_GUARD::QAR(E)+S(I)
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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).