MESON Chess Problem Database

Problem Display
PID: 149019 (Q3N3/2q1p3/1pn1rpN1/1K1k4/4rb2/B1Pp4/8/1b5B w - - 0 1)

Weiss, Berthold

Good Companions (May), 1918

Q3N3/2q1p3/1pn1rpN1/1K1k4/4rb2/B1Pp4/8/1b5B

#2

7 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Sxf4#
      • 2.Sxc7#
    • 1...Rd6
      • 2.Sxc7#
    • 1...Bc1
      • 2.Sxc7#
    • 1...Bd2
      • 2.Sxc7#
    • 1...Be3
      • 2.Sxc7#
    • 1...Bg5
      • 2.Sxc7#
    • 1...Bh6
      • 2.Sxc7#
  • Tries
    • 1.Bc5?
      • threat
        • 2.c4#
      • 1...Re5
        • 2.Sxf4#
        • 2.Sxc7#
      • 1...Rd6
        • 2.Sxc7#
      • 1...Ba2
        • 2.Qxa2#
      • 1...bxc5!
  • Keys
    • 1.Bb2!
      • threat
        • 2.c4#
      • 1...Re5
        • 2.Sxf4#
      • 1...Rd6
        • 2.Sxc7#
      • 1...Ba2
        • 2.Qxa2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • R(h);S_CUTB(d)::S(G),XQ(j)
    • B(d);N_GUARD::S(G),XQ(j)
  • Tries
    • Try
      • B(B);
      • Threat
        • P(C)
      • Vars
        • R(h);S_CUTB(d)::S(G),XQ(j)
        • B(a);N_GUARD::QAB(F),XB(a)
      • Refutation
        • P(f);XB(B)
  • Actual
    • B(B);
    • Threat
      • P(C)
    • Vars
      • R(h);SBLOCK,S_CUTQ(j)::S(E),XB(d)
      • R(h);SBLOCK,S_CUTB(d)::S(G),XQ(j)
      • B(a);N_GUARD::QAB(F),XB(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).