MESON Chess Problem Database

Problem Display
PID: 195127 (Q3nN2/1pp1n2r/7p/5k2/8/2B2B1N/1K2P3/1b4r1 w - - 0 1)

Marshall, Burney Means

Densmore MT (Pittsburgh Gazette-Times), 1918

Q3nN2/1pp1n2r/7p/5k2/8/2B2B1N/1K2P3/1b4r1

#2

7 + 9

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Ba2
      • 2.e4#
  • Tries
    • 1.Qxe8?
      • threat
        • 2.Qd7#
      • 1...Rd1
        • 2.Qh5#
      • 1...Ba2
        • 2.e4#
      • 1...Sd5
        • 2.Qe5#
        • 2.Qe6#
      • 1...Sc6
        • 2.Qe6#
      • 1...Sg6
        • 2.Qe6#
      • 1...Sc8
        • 2.Qe5#
        • 2.Qe6#
      • 1...Sg8
        • 2.Qe5#
        • 2.Qe6#
      • 1...Rg6!
  • Keys
    • 1.Qa2!
      • threat
        • 2.Qe6#
      • 1...Bxa2
        • 2.e4#
      • 1...Rg6
        • 2.Qxb1#
      • 1...Sd5
        • 2.Qxd5#
      • 1...Sg7
        • 2.Qf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD::P(B)
  • Tries
    • Try
      • Q(F);XS(i)
      • Threat
        • QAB(F)
      • Vars
        • R(b);N_GUARD::QAR2(F)
        • B(a);N_GUARD::P(B)
        • S(g);OGATE::QAB1(F)
      • Refutation
        • R(b);
  • Actual
    • Q(F);
    • Threat
      • QAB1(F)
    • Vars
      • B(a);N_GUARD,XQ(F)::P(B)
      • R(b);N_GUARD::QAB(F),XB(a)
      • S(g);N_GUARD::QAR2(F),XS(g)
      • S(i);N_GUARD,S_CUTR(h)::QAR2(F)
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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).