MESON Chess Problem Database

Problem Display
PID: 207244 (5n2/1Np2p2/5p1n/QpN2k1K/b7/r3b1BP/4P3/8 w - - 0 1)

Gold, Samuel

Schachzeitung, 1869

5n2/1Np2p2/5p1n/QpN2k1K/b7/r3b1BP/4P3/8

#2

7 + 10

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.e4#
    • 1...Bg1
      • 2.e4#
    • 1...Bd2
      • 2.e4#
    • 1...Bf2
      • 2.e4#
    • 1...Bd4
      • 2.e4#
    • 1...Bg5
      • 2.e4#
    • 1...Sg4
      • 2.hxg4#
    • 1...c6
      • 2.Sd6#
  • Keys
    • 1.Qd2!
      • threat
        • 2.Qd5#
      • 1...Bxd2
        • 2.e4#
      • 1...Bf4
        • 2.Qxf4#
      • 1...Rd3
        • 2.Qxd3#
      • 1...Bd4
        • 2.Qf4#
        • 2.e4#
      • 1...Bb3
        • 2.Qd3#
      • 1...Sg4
        • 2.hxg4#
      • 1...Sg6
        • 2.Qd7#
      • 1...Sd7
        • 2.Qxd7#
      • 1...c6
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 5
  • Sets
    • B(b);OGATE::P(A)
    • S(g);OGATE::P(C),XS(g)
    • P(h);N_GUARD::S(G)
  • Actual
    • Q(D);
    • Threat
      • QAR2(D)
    • Vars
      • B(b);OGATE,XQ(D)::P(A)
      • B(b);OGATE::QAR1(D),XB(b)
      • R(a);N_GUARD::QAB(D),XR(a)
      • B(c);S_CUTR(a)::QAB(D)
      • S(g);OGATE::P(C),XS(g)
      • S(j);N_GUARD::QAB(D)
      • S(j);N_GUARD::QAB(D),XS(j)
      • P(h);N_GUARD::S(G)
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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).