MESON Chess Problem Database

Problem Display
PID: 172553 (8/4K3/p7/Bk6/8/rpQ5/8/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

Kuban segodniya, 2004

8/4K3/p7/Bk6/8/rpQ5/8/8

#2

3 + 4

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ka4
      • 2.Qb4#
  • Tries
    • 1.Qc5+?
      • 1...Ka4
        • 2.Qb4#
      • 1...Kxc5!
  • Keys
    • 1.Kd6!
      • threat
        • 2.Qb4#
      • 1...Ka4
        • 2.Qb4#
      • 1...Rxa5
        • 2.Qxb3#
      • 1...Ra4
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::QAR1(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);S_FLIGHT::QAR1(A)
      • Refutation
        • K(c);P-FLIGHT,XQ(A)
  • Actual
    • K(C);S_FLIGHT
    • Threat
      • QAR1(A)
    • Vars
      • K(c);S_FLIGHT::QAR1(A)
      • R(a);N_GUARD,SBLOCK,XB(B)::QAR2(A),XP(b)
      • R(a);SBLOCK::QAR1(A)
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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).