MESON Chess Problem Database

Problem Display
PID: 140200 (2K5/6b1/3Pp3/1p2knR1/5R1P/8/1N3pB1/Q7 w - - 0 1)

Vlagsma, C

Probleemblad, 1975

2K5/6b1/3Pp3/1p2knR1/5R1P/8/1N3pB1/Q7

#2

8 + 6

SOLUTION

  • SOUND
  • Keys
    • 1.Qa7!
      • threat
        • 2.Qd4#
      • 1...Kxf4
        • 2.Sd3#
      • 1...Kxd6
        • 2.Qc7#
      • 1...Kf6
        • 2.Qxg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • K(c);N_SPINS(d),S_FLIGHT,XR(D)::S(B)
      • K(c);N_SPINS(d),OGATEB,S_FLIGHT,XP(G)::QAB1(A)
      • K(c);S_FLIGHT::QAB1(A),XB(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).