MESON Chess Problem Database

Problem Display
PID: 146031 (1B6/2p5/2p1Q3/1PPb2N1/3k1K2/1B1P4/N7/5n2 w - - 0 1)

Asper, Amos L

Good Companions (January black Bishop), 1918

1B6/2p5/2p1Q3/1PPb2N1/3k1K2/1B1P4/N7/5n2

#2

9 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Bh1
      • 2.Qc4#
    • 1...Bg2
      • 2.Qc4#
    • 1...Bf3
      • 2.Qc4#
    • 1...Bc4
      • 2.Qxc4#
    • 1...Be4
      • 2.Qc4#
    • 1...Sd2
      • 2.Qe3#
    • 1...Sh2
      • 2.Qe3#
    • 1...Se3
      • 2.Qxe3#
    • 1...Sg3
      • 2.Qe3#
    • 1...cxb5
      • 2.Qxd5#
  • Keys
    • 1.Bc4!
      • 1...Kxc5
        • 2.Ba7#
      • 1...Bxc4
        • 2.Qxc4#
      • 1...Bxe6
        • 2.Sxe6#
      • 1...cxb5
        • 2.Qxd5#
      • 1...Bh1
        • 2.Qe5#
      • 1...Bg2
        • 2.Qe5#
      • 1...Bf3
        • 2.Qe5#
      • 1...Be4
        • 2.Qe5#
      • 1...Sd2
        • 2.Qe3#
      • 1...Sh2
        • 2.Qe3#
      • 1...Se3
        • 2.Qxe3#
      • 1...Sg3
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 4
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(c);OGATE::QAR1(H)
    • B(c);OGATE::QAR1(H),XB(c)
    • S(a);N_GUARD::QAB1(H)
    • S(a);N_GUARD::QAB1(H),XS(a)
    • P(d);N_GUARD,XP(E)::QAR1(H),XB(c)
  • Actual
    • B(B);
    • Vars
      • K(b);OGATEB,S_FLIGHT,XP(F)::B(I)
      • B(c);OGATE,XB(B)::QAR1(H),XB(c)
      • B(c);XQ(H)::S(G),XB(c)
      • P(d);N_GUARD,XP(E)::QAR1(H),XB(c)
      • B(c);::QAB1(H)
      • S(a);N_GUARD::QAB1(H)
      • S(a);N_GUARD::QAB1(H),XS(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).