MESON Chess Problem Database

Problem Display
PID: 232497 (bR2K3/bBk5/3q4/P7/3p4/8/n6B/Q7 w - - 0 1)

Dikusarov, Andrey Nikolayovich

Freie Presse, 2012

bR2K3/bBk5/3q4/P7/3p4/8/n6B/Q7

#2

6 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qg3
      • 2.Bxg3#
    • 1...Qf4
      • 2.Bxf4#
    • 1...Qe5+
      • 2.Bxe5#
  • Keys
    • 1.Qh1!
      • threat
        • 2.Rc8#
      • 1...Qe5+
        • 2.Bxe5#
      • 1...Kxb8
        • 2.Bxd6#
      • 1...Qxh2
        • 2.Qxh2#
      • 1...Bxb8
        • 2.Qc6#
      • 1...Bxb7
        • 2.Qxb7#
      • 1...Qg3
        • 2.Bxg3#
      • 1...Qf4
        • 2.Bxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • Q(c);OGATEB::B(B),XQ(c)
    • Q(c);CHECK,OGATEB::B(B),XQ(c)
  • Actual
    • Q(A);
    • Threat
      • R1(E)
    • Vars
      • Q(c);CHECK,OGATEB::B(B),XQ(c)
      • K(e);S_FLIGHT,XR(E)::B(B),XQ(c)
      • Q(c);N_SPINQ(c),OGATE,XB(B)::QAB(A),XQ(c)
      • B(d);SBLOCK,XR(E)::QAR1(A)
      • B(f);OGATE,XB(D)::QAR1(A),XB(f)
      • Q(c);OGATEB::B(B),XQ(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).