MESON Chess Problem Database

Problem Display
PID: 6018 (2B2n2/4prrb/2k2bqR/P1p3pp/P7/5NB1/QpR1NK2/8 w - - 0 1)

Mansfield, Comins

5th HM., Grantham Journal, 1926

2B2n2/4prrb/2k2bqR/P1p3pp/P7/5NB1/QpR1NK2/8

#2

10 + 12

785 Het Belgisch Schaakbord (L'Echiquier Belge) 1956
3202 Complete Mansfield/I 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Qf5
      • 2.Sd4#
    • 1...Bd4+
      • 2.Sxd4#
    • 1...Se6
      • 2.Qxe6#
    • 1...Sd7
      • 2.Qe6#
    • 1...c4
      • 2.Qxc4#
  • Keys
    • 1.Qc4!
      • threat
        • 2.Qxc5#
      • 1...Bd4+
        • 2.Sxd4#
      • 1...Qxc2
        • 2.Sd4#
      • 1...Qf5
        • 2.Sd4#
      • 1...Bc3
        • 2.Qe4#
      • 1...Se6
        • 2.Qxe6#
      • 1...Sd7
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • Q(g);P_PINS(E),P_SPINB(f)::S(C)
    • B(f);CHECK,N_GUARD,P_PINS(E),P_SPINQ(g)::S(C),XB(f)
    • S(l);N_GUARD::QAR2(A),XS(l)
    • S(l);N_GUARD::QAR2(A)
    • P(b);OGATEB::QAR2(A),XP(b)
  • Actual
    • Q(A);
    • Threat
      • QAR1(A),XP(b)
    • Vars
      • B(f);CHECK,N_GUARD,P_PINS(E),P_SPINQ(g)::S(C),XB(f)
      • Q(g);P_PINS(C),P_SPINB(f),XR(B)::S(E)
      • Q(g);P_PINS(E),P_SPINB(f)::S(C)
      • B(f);P_PINS(E),P_SPINQ(g)::QAB(A)
      • S(l);N_GUARD::QAR2(A),XS(l)
      • S(l);N_GUARD::QAR2(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).