MESON Chess Problem Database

Problem Display
PID: 183205 (3N4/Bq1n3B/3p4/3knPR1/1P6/2KN2b1/3R4/8 w - - 0 1)

Berdichefsky, Benjamin

Philadelphia Inquirer, 1907

3N4/Bq1n3B/3p4/3knPR1/1P6/2KN2b1/3R4/8

#2

9 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Keys
    • 1.f6!
      • threat
        • 2.Sc1#
        • 2.Se1#
        • 2.Sb2#
        • 2.Sf2#
        • 2.Sf4#
        • 2.Sc5#
        • 2.Sxe5#
      • 1...Qc6+
        • 2.Sc5#
      • 1...Qc8+
        • 2.Sc5#
      • 1...Qxb4+
        • 2.Sxb4#
      • 1...Qc7+
        • 2.Sc5#
      • 1...Qxa7
        • 2.Sf4#
        • 2.Sc5#
      • 1...Qa6
        • 2.Sf4#
      • 1...Qb5
        • 2.Sf4#
      • 1...Qb6
        • 2.Sf4#
        • 2.Sc5#
      • 1...Be1
        • 2.Sxe1#
        • 2.Sf4#
      • 1...Bf2
        • 2.Sxf2#
        • 2.Sf4#
      • 1...Bf4
        • 2.Sxf4#
      • 1...Sc5
        • 2.Sf4#
        • 2.Sxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Actual
    • P(E);P_PINS(c)
    • Threat
      • DUALS(7)
    • Vars
      • Q(e);CHECK::R(A)+S(C)
      • Q(e);CHECK,XP(D)::R(A)+S(C),DCHECK,XQ(e)
      • Q(e);::R(A)+S(C),DCHECK
      • B(a);::R(A)+S(C),DCHECK,XB(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).