MESON Chess Problem Database

Problem Display
PID: 189856 (5B2/8/8/3P4/3k2N1/4N1P1/P2p4/3Q3K w - - 0 1)

Hawkins, Xenophon

Pittsburgh Gazette-Times, 1912

5B2/8/8/3P4/3k2N1/4N1P1/P2p4/3Q3K

#2

8 + 2

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Qa4+?
      • 1...Kd3
        • 2.Qc4#
      • 1...Kc3!
  • Keys
    • 1.Sf2!
      • 1...Kc3
        • 2.Qa1#
      • 1...Kxe3
        • 2.Bc5#
      • 1...Ke5
        • 2.Qa1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK,N_PINP(a)
      • Vars
        • K(b);P-FLIGHT::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • S(F);
    • Vars
      • K(b);N_SPINP(a),S_FLIGHT::QAB(A)
      • K(b);N_SPINP(a),S_FLIGHT,XS(D)::B(H)
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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).