MESON Chess Problem Database

Problem Display
PID: 74394 (7N/B2N3K/2p3Qp/3kp2r/1R3nB1/3br3/1bqR4/6n1 w - - 0 1)

Willems, PJH

Tijdschrift vd KNSB, 1938

7N/B2N3K/2p3Qp/3kp2r/1R3nB1/3br3/1bqR4/6n1

#2

8 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...c5
      • 2.Sb6#
  • Keys
    • 1.Sf7!
      • threat
        • 2.Sf6#
      • 1...Rf5
        • 2.Qd6#
      • 1...e4
        • 2.Qd6#
      • 1...c5
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(j);SBLOCK::S(F)
  • Actual
    • S(H);
    • Threat
      • S(F)
    • Vars
      • R(i);N_PINQ(D)::QAR1(D)
      • P(h);N_PINQ(D)::QAR1(D)
      • P(j);SBLOCK::S(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).