MESON Chess Problem Database

Problem Display
PID: 151635 (7N/r1b4n/4k2K/pQ3R1P/5p2/Bb6/2p1r3/8 w - - 0 1)

Stewart, John

Good Companions (November), 1914

7N/r1b4n/4k2K/pQ3R1P/5p2/Bb6/2p1r3/8

#2

6 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Ba4
      • 2.Qd5#
    • 1...Bd5
      • 2.Qxd5#
  • Keys
    • 1.Rf7!
      • threat
        • 2.Qf5#
      • 1...Bd5
        • 2.Qe8#
      • 1...Re5
        • 2.Qd7#
      • 1...Be5
        • 2.Qxb3#
      • 1...Sf6
        • 2.Re7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(c);N_GUARD::QAB1(B)
    • B(c);N_GUARD::QAB1(B),XB(c)
  • Actual
    • R(C);
    • Threat
      • QAB1(B)
    • Vars
      • B(c);SBLOCK::QAR2(B)
      • R(b);SBLOCK::QAB1(B)
      • B(h);SBLOCK::QAB(B),XB(c)
      • S(i);SBLOCK::R1(C)
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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).