MESON Chess Problem Database

Problem Display
PID: 260747 (2B4K/8/3p1NpQ/3p2P1/3B1k1b/3Pp3/4Pppr/8 w - - 0 1)

le Grand, Henk

2nd Comm., Neue Zurcher Zeitung, 1982

2B4K/8/3p1NpQ/3p2P1/3B1k1b/3Pp3/4Pppr/8

#2

8 + 9

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Bg3
      • 2.Sxd5#
    • 1...Bxg5
      • 2.Qxh2#
  • Keys
    • 1.Qf8!
      • threat
        • 2.Se4#
      • 1...Bg3+
        • 2.Sh7#
      • 1...Bxg5+
        • 2.Sh5#
      • 1...Kg3
        • 2.Qxd6#
      • 1...Kxg5
        • 2.Bxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(f);P_PINQ(F),SBLOCK::S(E),XP(g)
    • B(f);OGATE,P_PINQ(F),P_SPINB(f),SBLOCK,XP(D)::QAB(F),XR(c)
  • Actual
    • Q(F);
    • Threat
      • QAR(F)+S(E)
    • Vars
      • B(f);CHECK,SBLOCK::QAR(F)+S(E)
      • B(f);CHECK,SBLOCK,XP(D)::QAR(F)+S(E),DCHECK
      • K(e);N_GUARD,S_FLIGHT::QAB(F),XP(h)
      • K(e);N_GUARD,S_FLIGHT,XP(D)::B(C),XP(d)
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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).