MESON Chess Problem Database

Problem Display
PID: 73356 (2bkr3/4Np2/N3pK2/b7/1p6/4Q3/8/8 w - - 0 1)

Alvey, George Clarence Vincent

Chess Amateur (The), 1910

2bkr3/4Np2/N3pK2/b7/1p6/4Q3/8/8

#2

4 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Kd7
      • 2.Qd2#
      • 2.Qd4#
      • 2.Qd3#
  • Tries
    • 1.Qb6+?
      • 1...Kd7
        • 2.Sc5#
        • 2.Sb8#
        • 2.Qd4#
      • 1...Bxb6!
  • Keys
    • 1.Qc5!
      • threat
        • 2.Qxc8#
      • 1...Kd7
        • 2.Qd4#
      • 1...Rxe7
        • 2.Qxe7#
      • 1...Bxa6
        • 2.Qd6#
      • 1...Bd7
        • 2.Qxa5#
      • 1...Bc7
        • 2.Qxc7#
      • 1...Bb7
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Refutation
        • B(b);XQ(A)
  • Actual
    • Q(A);
    • Threat
      • QAR1(A),XB(e)
    • Vars
      • K(f);P-FLIGHT::QAR(A)
      • R(g);OGATE,XS(D)::QAB1(A),XR(g)
      • B(e);N_GUARD,XS(B)::QAR2(A)
      • B(e);SBLOCK::QAB(A),XB(b)
      • B(b);N_GUARD::QAB1(A),XB(b)
      • B(e);N_GUARD::QAR2(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).