MESON Chess Problem Database

Problem Display
PID: 168584 (8/4B3/8/1K1Bkp2/8/8/8/3Q4 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Best Problems, 1998

8/4B3/8/1K1Bkp2/8/8/8/3Q4

#2

4 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Kc4?
      • threat
        • 2.Qd4#
      • 1...f4
        • 2.Qh5#
      • 1...Kf4!
    • 1.Kc5?
      • threat
        • 2.Qd4#
      • 1...f4
        • 2.Qh5#
      • 1...Kf4!
    • 1.Qa4?
      • 1...f4
        • 2.Qe4#
      • 1...Kxd5!
    • 1.Qd3?
      • 1...f4
        • 2.Qe4#
      • 1...Kf4!
  • Keys
    • 1.Qf3!
      • 1...Kd4
        • 2.Bf6#
      • 1...f4
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Threat
        • QAB1(A)
      • Vars
        • P(b);OGATEB,SBLOCK::QAR(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(B);P-FLIGHT
      • Threat
        • QAB1(A)
      • Vars
        • P(b);OGATEB,SBLOCK::QAR(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • P(b);N_GUARD::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT,XB(C)
    • Try
      • Q(A);
      • Vars
        • P(b);N_GUARD::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(a);S_FLIGHT::B(D)
      • P(b);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).