MESON Chess Problem Database

Problem Display
PID: 95618 (2BQ4/8/8/8/8/8/1K2k3/4BN2 w - - 0 1)

Hoffmann, Klaus Peter

Augsburger Allgemeine Zeitung, 1994

2BQ4/8/8/8/8/8/1K2k3/4BN2

#2

5 + 1

6114 Problemschach-Jahrbuch (1994) 1995
5454 Near Snap 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Bh3?
      • 1...Kxe1
        • 2.Qd2#
      • 1...Kf3!
    • 1.Ba6+?
      • 1...Kxe1
        • 2.Qd2#
      • 1...Kf3!
    • 1.Qd2+?
      • 1...Kxf1
        • 2.Qf2#
      • 1...Kf3!
    • 1.Qd4?
      • 1...Kxf1
        • 2.Qf2#
      • 1...Kf3
        • 2.Qg4#
      • 1...Kxe1!
  • Keys
    • 1.Qh4!
      • 1...Kd1
        • 2.Bg4#
      • 1...Kxf1
        • 2.Qf2#
      • 1...Kd3
        • 2.Ba6#
      • 1...Kf3
        • 2.Qg4#

Anticipated by 2475(0000), 66760(1967)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(D);
      • Vars
        • K(a);P-FLIGHT,XB(A)::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(D);CHECK
      • Vars
        • K(a);P-FLIGHT,XB(A)::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XS(B)::QAR1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(a);S_FLIGHT,XS(B)::QAR1(E)
        • K(a);S_FLIGHT::QAB1(E)
      • Refutation
        • K(a);P-FLIGHT,XB(A)
  • Actual
    • Q(E);
    • Vars
      • K(a);S_FLIGHT::B(D)
      • K(a);S_FLIGHT,XS(B)::QAR1(E)
      • K(a);S_FLIGHT::QAB1(E)
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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).