MESON Chess Problem Database

Problem Display
PID: 36407 (bb5K/Q7/5pR1/prp5/2p5/4B2N/5Npk/3R3r w - - 0 1)

Boxo, Eugenio

Recomm., BCF 007. Ty., 1931-1932

bb5K/Q7/5pR1/prp5/2p5/4B2N/5Npk/3R3r

#2

7 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bb7
      • 2.Qxb8#
    • 1...Bf4
      • 2.Bxf4#
    • 1...Bxa7
      • 2.Bf4#
    • 1...Bc7
      • 2.Qxc7#
  • Keys
    • 1.Sg1!
      • threat
        • 2.Qh7#
      • 1...Bxa7
        • 2.Bf4#
      • 1...Rb7
        • 2.Sf3#
      • 1...Bf3
        • 2.Sxf3#
      • 1...Bb7
        • 2.Qxb8#
      • 1...Bg3
        • 2.Sg4#
      • 1...Bf4
        • 2.Bxf4#
      • 1...Bc7
        • 2.Qxc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(i);S_CUTR(f)::QAB(F),XB(j)
    • B(j);N_GUARD::B(C),XB(j)
    • B(j);N_GUARD,XQ(F)::B(C)
    • B(j);N_GUARD::QAB(F),XB(j)
  • Actual
    • S(D);
    • Threat
      • QAR(F)
    • Vars
      • B(j);N_GUARD,XQ(F)::B(C)
      • R(f);S_CUTB(i)::S(D)
      • B(i);N_GUARD::S(D),XB(i)
      • B(i);S_CUTR(f)::QAB(F),XB(j)
      • B(j);SBLOCK::S(B)
      • B(j);N_GUARD::B(C),XB(j)
      • B(j);N_GUARD::QAB(F),XB(j)
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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).