MESON Chess Problem Database

Problem Display
PID: 231287 (1b2r3/4r3/5p1p/5k1K/2BR1B2/1N6/8/Q7 w - - 0 1)

van Dijk, Johannes

De Maasbode, 1927

1b2r3/4r3/5p1p/5k1K/2BR1B2/1N6/8/Q7

#2

6 + 6

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Be5
      • 2.Qb1#
  • Keys
    • 1.Be5!
      • threat
        • 2.Rf4#
      • 1...Kxe5
        • 2.Qa5#
      • 1...Rxe5
        • 2.Qf1#
      • 1...Bxe5
        • 2.Qb1#
      • 1...fxe5
        • 2.Qf1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(e);S_CUTR(d)::QAB(A)
  • Actual
    • B(E);
    • Threat
      • R1(D)
    • Vars
      • K(a);OGATEB,P-FLIGHT,XB(E)::QAR(A)
      • R(d);SBLOCK,XB(E)::QAR(A)
      • B(e);SBLOCK,XB(E)::QAB(A)
      • P(b);SBLOCK,XB(E)::QAR(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).