MESON Chess Problem Database

Problem Display
PID: 39728 (8/8/6n1/6K1/4k3/8/2nQBP2/8 w - - 0 1)

Lincoln, Robert A

More Fun with Chess Miniatures, 2000

8/8/6n1/6K1/4k3/8/2nQBP2/8

#2

4 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Bf3+?
      • 1...Ke5
        • 2.Qd5#
      • 1...Kxf3!
  • Keys
    • 1.Bc4!
      • threat
        • 2.Qd5#
      • 1...Kf3
        • 2.Bd5#
      • 1...Ke5
        • 2.Qd5#
      • 1...Se3
        • 2.Qxe3#
      • 1...Sb4
        • 2.Qe3#
      • 1...Sd4
        • 2.Qe3#
      • 1...Sf4
        • 2.Qxf4#
      • 1...Se7
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(B);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
      • Refutation
        • K(b);S_FLIGHT,XB(B)
  • Actual
    • B(B);
    • Threat
      • QAB1(A)
    • Vars
      • K(b);S_FLIGHT::B(B)
      • K(b);P-FLIGHT::QAR1(A)
      • S(a);N_GUARD::QAR1(A),XS(a)
      • S(a);N_GUARD::QAR1(A)
      • S(c);N_GUARD::QAR1(A),XS(c)
      • S(c);N_GUARD::QAR1(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).