MESON Chess Problem Database

Problem Display
PID: 163252 (Qr3RNB/1B1P1n2/2n1kbN1/qpP4K/4P3/7p/3R4/3r4 w - - 0 1)

Banny, Dimitry Nikolaevich

Novi Temi, 1972

Qr3RNB/1B1P1n2/2n1kbN1/qpP4K/4P3/7p/3R4/3r4

#2

11 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qb6
      • 2.Qa2#
    • 1...Qc7
      • 2.Qa2#
    • 1...Qd8
      • 2.Qa2#
    • 1...Qa2
      • 2.Qxa2#
    • 1...Rc8
      • 2.dxc8Q#
      • 2.dxc8B#
    • 1...Ba1
      • 2.Sf4#
    • 1...Bb2
      • 2.Sf4#
    • 1...Bc3
      • 2.Sf4#
    • 1...Bh4
      • 2.Sf4#
    • 1...Be7
      • 2.Sf4#
    • 1...Bd8
      • 2.Sf4#
    • 1...Sce5
      • 2.Sf4#
    • 1...Sfe5
      • 2.Sf4#
      • 2.Rxf6#
    • 1...Sg5
      • 2.Rxf6#
    • 1...Sh6
      • 2.Rxf6#
    • 1...Sd8
      • 2.Rxf6#
    • 1...Sxh8
      • 2.Rxf6#
  • Keys
    • 1.Bc8!
      • threat
        • 2.d8S#
      • 1...Rxc8
        • 2.dxc8Q#
        • 2.dxc8B#
      • 1...Qd8
        • 2.Qa2#
      • 1...Rb6
        • 2.d8Q#
        • 2.d8S#
        • 2.d8B#
        • 2.d8R#
      • 1...Bd8
        • 2.Sf4#
      • 1...Scd8
        • 2.Qd5#
      • 1...Sfd8
        • 2.Rxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 12
  • Sets
    • Q(c);OGATE::QAB(H)
    • Q(c);OGATE::QAB(H),XQ(c)
    • R(i);OGATE::PXR(i)=Q
    • B(g);::S(E)
    • S(e);SBLOCK::S(E)
    • S(h);OGATE::R1(I),XB(g)
    • S(h);OGATE,XB(K)::R1(I),XB(g)
  • Actual
    • B(F);
    • Threat
      • P=S
    • Vars
      • R(i);OGATE,XB(F)::PXR(i)=Q
      • Q(c);OGATE::QAB(H)
      • B(g);::S(E)
      • S(e);OGATE::QAB1(H)
      • S(h);OGATE::R1(I),XB(g)
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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).