MESON Chess Problem Database

Problem Display
PID: 224623 (7k/2Kb2pp/5p1N/5Q2/4N3/8/8/8 w - - 0 1)

Cook, Eugene Beauharnais

Newark Sunday Call, 1888

7k/2Kb2pp/5p1N/5Q2/4N3/8/8/8

#2

4 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bc8
      • 2.Qxc8#
    • 1...g5
      • 2.Qxf6#
    • 1...g6
      • 2.Qxf6#
  • Tries
    • 1.Kxd7?
      • 1...g5
        • 2.Qxf6#
      • 1...g6
        • 2.Qxf6#
      • 1...gxh6!
    • 1.Sxf6?
      • threat
        • 2.Sf7#
        • 2.Qxh7#
      • 1...Bxf5
        • 2.Sf7#
      • 1...gxf6
        • 2.Qxf6#
      • 1...gxh6
        • 2.Qxh7#
      • 1...g5
        • 2.Qxh7#
      • 1...Be6
        • 2.Qxh7#
      • 1...Be8
        • 2.Qxh7#
      • 1...g6!
  • Keys
    • 1.Sg5!
      • threat
        • 2.Sgf7#
        • 2.Qxh7#
      • 1...Bxf5
        • 2.Sgf7#
      • 1...fxg5
        • 2.Qf8#
      • 1...gxh6
        • 2.Qxh7#
      • 1...g6
        • 2.Qxf6#
      • 1...Be6
        • 2.Qxh7#
      • 1...Be8
        • 2.Qxh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • B(b);OGATE::QAR(B),XB(b)
    • P(c);OGATEB::QAB(B),XP(a)
  • Tries
    • Try
      • K(D);P-FLIGHT,XB(b)
      • Vars
        • P(c);OGATEB::QAB(B),XP(a)
      • Refutation
        • P(c);XS(C)
    • Try
      • S(A);XP(a)
      • Threat
        • DUALS(2)
      • Vars
        • B(b);XQ(B)::S(C)
        • P(c);OGATE,XS(A)::QAB(B),XP(c)
        • P(c);XS(C)::QAR1(B),XP(d)
        • P(c);::QAR1(B),XP(d)
        • B(b);::QAR1(B),XP(d)
      • Refutation
        • P(c);
  • Actual
    • S(A);
    • Threat
      • DUALS(2)
    • Vars
      • B(b);XQ(B)::S(A)
      • P(a);OGATE,XS(A)::QAR2(B)
      • P(c);XS(C)::QAR1(B),XP(d)
      • P(c);OGATEB::QAB(B),XP(a)
      • B(b);::QAR1(B),XP(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).