MESON Chess Problem Database

Problem Display
PID: 173973 (KQ1nrb2/1n1Pk1p1/2P3P1/6P1/2N5/8/8/8 w - - 0 1)

Bottacchi, Antonio

Bristol Times and Mirror, 1927

KQ1nrb2/1n1Pk1p1/2P3P1/6P1/2N5/8/8/8

#2

7 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Qe5#
    • 1...Sa5
      • 2.Qd6#
    • 1...Sc5
      • 2.Qd6#
    • 1...Sd6
      • 2.Qxd6#
    • 1...Sxc6
      • 2.Qxe8#
      • 2.dxe8Q#
    • 1...Se6
      • 2.Qxe8#
      • 2.dxe8Q#
      • 2.dxe8R#
    • 1...Sf7
      • 2.Qxe8#
      • 2.dxe8Q#
      • 2.dxe8R#
  • Tries
    • 1.Ka7?
      • 1...Ke6
        • 2.Qe5#
      • 1...Sa5
        • 2.Qd6#
      • 1...Sc5
        • 2.Qd6#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Se6
        • 2.Qxe8#
        • 2.dxe8Q#
        • 2.dxe8R#
      • 1...Sf7
        • 2.Qxe8#
        • 2.dxe8Q#
        • 2.dxe8R#
      • 1...Sxc6+!
  • Keys
    • 1.Qc7!
      • 1...Sxc6+
        • 2.d8S#
      • 1...Se6+
        • 2.d8Q#
        • 2.d8B#
      • 1...Sf7+
        • 2.d8S#
      • 1...Ke6
        • 2.Qe5#
      • 1...Sa5
        • 2.Qd6#
      • 1...Sc5
        • 2.Qd6#
      • 1...Sd6
        • 2.Qxd6#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::QAR1(G)
    • S(a);N_GUARD::QAB1(G)
    • S(a);N_GUARD::QAB1(G),XS(a)
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Vars
        • K(b);P-FLIGHT::QAR1(G)
        • S(a);N_GUARD::QAB1(G)
        • S(a);N_GUARD::QAB1(G),XS(a)
      • Refutation
        • S(d);CHECK,XP(C)
  • Actual
    • Q(G);
    • Vars
      • S(d);CHECK,OGATE,XP(C)::P=S
      • S(d);CHECK,OGATE,SBLOCK::P=Q
      • S(d);CHECK,OGATE::P=S
      • K(b);P-FLIGHT::QAR1(G)
      • S(a);N_GUARD::QAB1(G)
      • S(a);N_GUARD::QAB1(G),XS(a)
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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).