MESON Chess Problem Database

Problem Display
PID: 173604 (k7/1b6/1Qn5/8/8/8/4B2B/5K2 w - - 0 1)

Boros, Sandor

Shakhmaty v SSSR, 1937

k7/1b6/1Qn5/8/8/8/4B2B/5K2

#2

4 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Keys
    • 1.Bf3!
      • 1...Ba6+
        • 2.Qxa6#
      • 1...Se5
        • 2.Qxb7#
      • 1...Bc8
        • 2.Qb8#
      • 1...Sb4
        • 2.Bxb7#
        • 2.Qxb7#
      • 1...Sd4
        • 2.Bxb7#
        • 2.Qa5#
        • 2.Qa6#
        • 2.Qxb7#
      • 1...Sa5
        • 2.Qxa5#
        • 2.Qa6#
      • 1...Sa7
        • 2.Bxb7#
        • 2.Qxb7#
      • 1...Se7
        • 2.Bxb7#
        • 2.Qa5#
        • 2.Qa6#
        • 2.Qxb7#
      • 1...Sb8
        • 2.Bxb7#
        • 2.Qxb7#
      • 1...Sd8
        • 2.Qa5#
        • 2.Qa6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Actual
    • B(B);
    • Vars
      • B(b);CHECK,N_GUARD,P_SPINS(a)::QAR2(D),XB(b)
      • S(a);P_SPINB(b)::QAB1(D),XB(b)
      • B(b);OGATE,P_SPINS(a)::QAR1(D)
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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).