MESON Chess Problem Database

Problem Display
PID: 59066 (5B2/8/1N2p1K1/8/3k4/8/8/2Q5 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Problem Observer, 2005

5B2/8/1N2p1K1/8/3k4/8/8/2Q5

#2

4 + 2

5454 Near Snap 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qe3#
  • Tries
    • 1.Bc5+?
      • 1...Ke4
        • 2.Qe3#
      • 1...Ke5
        • 2.Qe3#
      • 1...Kd3!
    • 1.Qd2+?
      • 1...Ke5
        • 2.Qe3#
      • 1...Ke4!
    • 1.Qc4+?
      • 1...Ke5
        • 2.Sd7#
      • 1...Ke3!
  • Keys
    • 1.Bh6!
      • threat
        • 2.Qe3#
      • 1...Kd3
        • 2.Qc4#
      • 1...Ke4
        • 2.Qe3#
      • 1...Ke5
        • 2.Qf4#

Anticipated by 10992(1897), 96288(2004)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR2(A)
  • Tries
    • Try
      • B(D);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT::S(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(D);
    • Threat
      • QAB1(A)
    • Vars
      • K(a);P-FLIGHT::QAB1(A)
      • K(a);P-FLIGHT::QAR1(A)
      • K(a);S_FLIGHT::QAB1(A)
HTML5 logo

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).