MESON Chess Problem Database

Problem Display
PID: 174018 (5b2/3K1p2/3p2N1/3N1k1r/4p2P/4p3/4P3/6Q1 w - - 0 1)

Bottacchi, Antonio

2nd Prize, In Tramway (Lo Scacchista), 1920

5b2/3K1p2/3p2N1/3N1k1r/4p2P/4p3/4P3/6Q1

#2

6 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rg5
      • 2.Qxg5#
    • 1...Rh6
      • 2.Qg5#
    • 1...Rh7
      • 2.Qg5#
    • 1...Rh8
      • 2.Qg5#
    • 1...f6
      • 2.Sxe3#
  • Tries
    • 1.Sge7+?
      • 1...Ke5
        • 2.Qa1#
      • 1...Bxe7!
  • Keys
    • 1.Qg3!
      • 1...Rxh4
        • 2.Sxh4#
      • 1...fxg6
        • 2.Qf4#
      • 1...Rg5
        • 2.Qxg5#
      • 1...Rh6
        • 2.Qg5#
      • 1...Rh7
        • 2.Qg5#
      • 1...Rh8
        • 2.Qg5#
      • 1...Bh6
        • 2.Sge7#
      • 1...Be7
        • 2.Sgxe7#
      • 1...Bg7
        • 2.Sge7#
      • 1...f6
        • 2.Sxe3#

This is a version

Version by Oscar Bonivento.

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • R(d);N_GUARD::QAR1(A),XR(d)
    • R(d);N_GUARD::QAR1(A)
    • P(f);SBLOCK::S(D),XP(a)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(c);P-FLIGHT::QAB(A)
      • Refutation
        • B(g);XS(E)
  • Actual
    • Q(A);
    • Vars
      • R(d);XP(C)::S(E),XR(d)
      • P(f);SBLOCK,XS(E)::QAR1(A)
      • R(d);N_GUARD::QAR1(A),XR(d)
      • R(d);N_GUARD::QAR1(A)
      • B(g);N_GUARD::S(E)
      • B(g);N_GUARD::S(E),XB(g)
      • P(f);SBLOCK::S(D),XP(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).