MESON Chess Problem Database

Problem Display
PID: 222717 (3k4/r2p1p1K/1N1P1q2/2N4n/4Q2B/8/8/8 w - - 0 1)

Mussini, Luigi

Charleston Sunday News, 1883

3k4/r2p1p1K/1N1P1q2/2N4n/4Q2B/8/8/8

#2

6 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qe7
      • 2.Qxe7#
    • 1...Ra1
      • 2.Sb7#
    • 1...Ra2
      • 2.Sb7#
    • 1...Ra3
      • 2.Sb7#
    • 1...Ra4
      • 2.Sb7#
    • 1...Ra5
      • 2.Sb7#
    • 1...Ra6
      • 2.Sb7#
    • 1...Rb7
      • 2.Sxb7#
    • 1...Ra8
      • 2.Sb7#
      • 2.Qxa8#
    • 1...Sg3
      • 2.Bxf6#
    • 1...Sf4
      • 2.Bxf6#
    • 1...Sg7
      • 2.Bxf6#
  • Keys
    • 1.Qe5!
      • 1...Qxh4
        • 2.Qh8#
      • 1...Qe7
        • 2.Qh8#
        • 2.Qxe7#
      • 1...Qg5
        • 2.Qh8#
      • 1...Ra1
        • 2.Sb7#
      • 1...Ra2
        • 2.Sb7#
      • 1...Ra3
        • 2.Sb7#
      • 1...Ra4
        • 2.Sb7#
      • 1...Ra5
        • 2.Sb7#
      • 1...Ra6
        • 2.Sb7#
      • 1...Rb7
        • 2.Sxb7#
      • 1...Rc7
        • 2.dxc7#
      • 1...Ra8
        • 2.Sb7#
      • 1...Sg3
        • 2.Bxf6#
      • 1...Sf4
        • 2.Bxf6#
      • 1...Sg7
        • 2.Bxf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • Q(b);N_GUARD::QAB1(A),XQ(b)
    • R(c);N_GUARD::S(C)
    • R(c);N_GUARD::S(C),XR(c)
    • S(a);N_GUARD::B(B),XQ(b)
  • Actual
    • Q(A);
    • Vars
      • Q(b);N_SPINQ(b),OGATE,XB(B)::QAR(A)
      • Q(b);OGATE::QAR(A)
      • R(c);N_GUARD::S(C)
      • R(c);N_GUARD::S(C),XR(c)
      • R(c);OGATE::P(E),XR(c)
      • S(a);N_GUARD::B(B),XQ(b)
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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).