MESON Chess Problem Database

Problem Display
PID: 100864 (7K/p1R1p2p/8/qp3bPQ/r2kBBp1/2bN2N1/nPP1r3/5n2 w - - 0 1)

Bukofzer, Maxwell

Good Companions, 1921

7K/p1R1p2p/8/qp3bPQ/r2kBBp1/2bN2N1/nPP1r3/5n2

#2

10 + 13

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Re3
      • 2.Be5#
    • 1...Se3
      • 2.Be5#
    • 1...Sb4
      • 2.bxc3#
  • Keys
    • 1.Qf7!
      • threat
        • 2.Qd5#
      • 1...Rxe4
        • 2.Sxf5#
      • 1...Bxe4
        • 2.Sxe2#
      • 1...Be6
        • 2.Qg7#
      • 1...Se3
        • 2.Be5#
      • 1...Sb4
        • 2.bxc3#
      • 1...b4
        • 2.Rc4#
        • 2.Qc4#
      • 1...e6
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • R(c);SBLOCK::B(F)
    • S(a);SBLOCK::B(F)
    • S(b);N_GUARD,S_CUTQ(h)::P(A),XB(d)
  • Actual
    • Q(H);
    • Threat
      • QAR1(H)
    • Vars
      • R(c);SBLOCK,XB(E)::S(D),XB(j)
      • B(j);SBLOCK,XB(E)::S(D),XR(c)
      • B(j);S_CUTP(l)::QAB(H)
      • S(a);SBLOCK::B(F)
      • S(b);N_GUARD,S_CUTQ(h)::P(A),XB(d)
      • P(l);OGATE::QAR(H)
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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).