MESON Chess Problem Database

Problem Display
PID: 200089 (8/5Rqb/B2p4/KQ1N4/4k1n1/2P1pn2/4N3/2b2r2 w - - 0 1)

Braithwaite, Kenneth Holmes

The Problemist, 1982

8/5Rqb/B2p4/KQ1N4/4k1n1/2P1pn2/4N3/2b2r2

#2

7 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc3+
      • 2.Sdxc3#
    • 1...Qe5
      • 2.Qd3#
    • 1...Sfe5
      • 2.Sg3#
    • 1...Sge5
      • 2.Rf4#
  • Keys
    • 1.Bb7!
      • threat
        • 2.Sf6#
      • 1...Qxc3+
        • 2.Sdxc3#
      • 1...Ke5
        • 2.Qe8#
      • 1...Qf6
        • 2.Sxf6#
      • 1...Sf6
        • 2.Sxf6#
      • 1...Qe5
        • 2.Qb1#
      • 1...Sfe5
        • 2.Sg3#
      • 1...Sge5
        • 2.Rf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • Q(h);CHECK,XP(B)::S(E),XQ(h)
    • Q(h);SBLOCK::QAB1(D)
    • S(d);SBLOCK::S(A)
    • S(f);SBLOCK::R1(G)
  • Actual
    • B(F);
    • Threat
      • B(F)+S(E),DCHECK
    • Vars
      • Q(h);CHECK,XP(B)::B(F)+S(E),DCHECK,XQ(h)
      • K(e);P-FLIGHT::QAR(D)
      • Q(h);::B(F)+S(E),DCHECK,XQ(h)
      • S(f);::B(F)+S(E),DCHECK,XS(f)
      • Q(h);SBLOCK::QAB(D)
      • S(d);SBLOCK::S(A)
      • S(f);SBLOCK::R1(G)
HTML5 logo

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).