MESON Chess Problem Database

Problem Display
PID: 223122 (8/4K3/2p1p3/2B1p3/2Qn1kB1/7b/2p2N1P/3N4 w - - 0 1)

Hamilton, Charles Dingee Pennock

Philadelphia Times, 1885

8/4K3/2p1p3/2B1p3/2Qn1kB1/7b/2p2N1P/3N4

#2

7 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...cxd1B
      • 2.Qc1#
    • 1...c1Q
      • 2.Qxc1#
    • 1...c1S
      • 2.Qxc1#
    • 1...c1B
      • 2.Qxc1#
    • 1...c1R
      • 2.Qxc1#
  • Keys
    • 1.Qxe6!
      • threat
        • 2.Qh6#
      • 1...Sf5+
        • 2.Qxf5#
      • 1...Kg5
        • 2.Qf6#
      • 1...Bxg4
        • 2.Qxg4#
      • 1...Sxe6
        • 2.Be3#
      • 1...Sf3
        • 2.Be3#
        • 2.Qf5#
        • 2.Qf6#
      • 1...e4
        • 2.Sxh3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 5
  • Sets
    • P(a);OGATE,XS(A)::QAB(D)
    • P(a);OGATE::QAB(D),XQ(a)
    • P(a);OGATE::QAB(D),XS(a)
    • P(a);OGATE::QAB(D),XB(a)
    • P(a);OGATE::QAB(D),XR(a)
  • Actual
    • Q(D);N_PINS(c),XP(g)
    • Threat
      • QAB(D)
    • Vars
      • S(c);CHECK,N_GUARD::QAR1(D),XS(c)
      • K(d);S_FLIGHT::QAB1(D)
      • B(b);OGATE,XB(E)::QAR1(D),XB(b)
      • S(c);OGATE,XQ(D)::B(F)
      • P(e);::S(B),XB(b)
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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).