MESON Chess Problem Database

Problem Display
PID: 19073 (4r1n1/1b2NkB1/8/3P1N2/8/2b5/Q7/7K w - - 0 1)

Alvey, George Clarence Vincent

Hampshire Post, 1912

4r1n1/1b2NkB1/8/3P1N2/8/2b5/Q7/7K

#2

6 + 5

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd5+
      • 2.Qxd5#
    • 1...Bc6
      • 2.dxc6#
  • Keys
    • 1.Qg2!
      • threat
        • 2.Qg6#
      • 1...Rxe7
        • 2.Sd6#
      • 1...Bxg7
        • 2.Qxg7#
      • 1...Bxd5
        • 2.Qxd5#
      • 1...Sxe7
        • 2.Sh6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(b);CHECK,OGATE,P_SPINB(b),XP(C)::QAB(B),XB(b)
    • B(b);::QAB(B)+P(C),XB(b)
  • Actual
    • Q(B);N_SPINP(C)
    • Threat
      • QAB1(B)
    • Vars
      • R(d);SBLOCK,XS(E)::S(D)
      • B(a);OGATE,XB(F)::QAR1(B),XB(a)
      • B(b);OGATE,P_PINQ(B),XP(C)::QAB(B),XB(b)
      • S(e);N_GUARD,SBLOCK,XS(E)::S(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).