MESON Chess Problem Database

Problem Display
PID: 108863 (8/5n2/1P6/b1Q2pPn/K3Nk1B/8/3N4/8 w - - 0 1)

Lena, Lucio

Il Littorale, 1931

8/5n2/1P6/b1Q2pPn/K3Nk1B/8/3N4/8

#2

7 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Keys
    • 1.Qd4!
      • threat
        • 2.Sf2#
        • 2.Sc3#
        • 2.Sg3#
        • 2.Sc5#
        • 2.Sd6#
        • 2.Sf6#
      • 1...Kg4
        • 2.Sf2#
      • 1...Bxd2
        • 2.Sxd2#
      • 1...Bxb6
        • 2.Sc5#
      • 1...Sxg5
        • 2.Sxg5#
      • 1...fxe4
        • 2.Qxe4#
      • 1...Bc3
        • 2.Sxc3#
      • 1...Sg3
        • 2.Sxg3#
      • 1...Sf6
        • 2.Sxf6#
      • 1...Sd6
        • 2.Sxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(E);
    • Threat
      • DUALS(6)
    • Vars
      • K(a);P-FLIGHT::QAR(E)+S(C),DCHECK
      • B(b);XS(A)::QAR(E)+S(C),XB(b)
      • B(b);XP(G)::QAR(E)+S(C)
      • S(e);XP(F)::QAR(E)+S(C),XS(e)
      • P(c);OGATE,P_SPINP(c),XS(C)::QAR1(E),XP(c)
      • B(b);::QAR(E)+S(C),XB(b)
      • S(d);::QAR(E)+S(C),XS(d)
      • S(e);::QAR(E)+S(C),XS(e)
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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).