MESON Chess Problem Database

Problem Display
PID: 166389 (8/1B1p4/3N4/r4p2/pP1k1P2/1b1p3N/QP1K1P2/8 w - - 0 1)

Colaneri, Bruno

Best Problems, 2017

8/1B1p4/3N4/r4p2/pP1k1P2/1b1p3N/QP1K1P2/8

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bd1
      • 2.Qc4#
    • 1...Bc2
      • 2.Qc4#
    • 1...Bc4
      • 2.Qxc4#
  • Tries
    • 1.Sg1?
      • threat
        • 2.Sf3#
      • 1...Bd1
        • 2.Qc4#
      • 1...Bd5!
    • 1.Qxb3?
      • threat
        • 2.Qc4#
        • 2.Qc3#
        • 2.Qxd3#
      • 1...Rc5
        • 2.Qxd3#
      • 1...axb3!
  • Keys
    • 1.Sg5!
      • threat
        • 2.Sf3#
      • 1...Bd1
        • 2.Qc4#
      • 1...Bd5
        • 2.Sxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • B(a);OGATE::QAR1(A)
    • B(a);OGATE::QAR1(A),XB(a)
  • Tries
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • B(a);OGATE::QAR1(A)
      • Refutation
        • B(a);
    • Try
      • Q(A);XB(a)
      • Threat
        • DUALS(3)
      • Vars
        • R(e);::QAR1(A),XP(b)
      • Refutation
        • P(c);XQ(A)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • B(a);OGATE::QAR1(A)
      • B(a);S_CUTR(e)::S(H),XP(f)
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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).