MESON Chess Problem Database

Problem Display
PID: 172389 (8/2K2Q2/k7/1p6/1R6/8/8/3b4 w - - 0 1)

Andreev, Aleksandr Grigorevich

Kuban segodniya, 1997

8/2K2Q2/k7/1p6/1R6/8/8/3b4

#2

3 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Be2
      • 2.Qa2#
    • 1...Bf3
      • 2.Qa2#
    • 1...Bg4
      • 2.Qa2#
    • 1...Bh5
      • 2.Qa2#
  • Keys
    • 1.Qd5!
      • threat
        • 2.Qa8#
      • 1...Ka5
        • 2.Qxb5#
      • 1...Ka7
        • 2.Qb7#
      • 1...Bf3
        • 2.Qa2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • B(a);N_GUARD::QAR(C)
    • B(a);N_GUARD,SBLOCK::QAR(C)
  • Actual
    • Q(C);
    • Threat
      • QAR2(C)
    • Vars
      • K(c);P-FLIGHT,P_SPINP(b)::QAR1(C),XP(b)
      • K(c);P-FLIGHT::QAR1(C)
      • B(a);N_GUARD::QAR(C)
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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).