MESON Chess Problem Database

Problem Display
PID: 27669 (8/5BN1/8/1Q4qR/2R2Nkb/8/8/7K w - - 0 1)

Lebeck, Donald

Mate in Two!! (Lebeck), 1992

8/5BN1/8/1Q4qR/2R2Nkb/8/8/7K

#2

7 + 3

SOLUTION

  • SOUND
  • Keys
    • 1.Qb3!
      • threat
        • 2.Qh3#
      • 1...Qd5+
        • 2.Sxd5#
      • 1...Qxf4
        • 2.Be6#
      • 1...Qxh5
        • 2.Sh3#
        • 2.Sfe6#
      • 1...Bg3
        • 2.Qd1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(D);
    • Threat
      • QAB1(D)
    • Vars
      • Q(c);CHECK,N_GUARD::R(B)+S(C),XQ(c)
      • Q(c);N_GUARD,P_SPINQ(c),XS(C)::B(F)
      • B(b);SBLOCK::QAB(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).