MESON Chess Problem Database

Problem Display
PID: 164487 (5B2/2K5/5Q2/1p1k4/2n5/2R5/8/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

Kuban segodniya, 1996

5B2/2K5/5Q2/1p1k4/2n5/2R5/8/8

#2

4 + 3

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Tries
    • 1.Qf5+?
      • 1...Kd4
        • 2.Rd3#
      • 1...Se5!
  • Keys
    • 1.Bg7!
      • threat
        • 2.Qc6#
      • 1...Ke4
        • 2.Qf3#
      • 1...Kc5
        • 2.Qd6#
      • 1...Sa5
        • 2.Qe5#
        • 2.Qf5#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sd6
        • 2.Qe5#

There are these versions: 172508

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);P-FLIGHT::R1(A)
      • Refutation
        • S(a);P_SPINS(a)
  • Actual
    • B(D);
    • Threat
      • QAB1(B)
    • Vars
      • K(c);S_FLIGHT::QAB1(B)
      • K(c);P-FLIGHT,P_SPINS(a)::QAB1(B)
      • S(a);N_GUARD::QAR1(B),XS(a)
      • S(a);N_GUARD::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).