MESON Chess Problem Database

Problem Display
PID: 60157 (2br3b/8/8/2B2p2/P1k2p2/PprN1Q1K/2pp2B1/8 w - - 0 1)

Smith, William James

6th HM., Brisbane Courier, 1929

2br3b/8/8/2B2p2/P1k2p2/PprN1Q1K/2pp2B1/8

#2

7 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Qxd5#
    • 1...Re8
      • 2.Qd5#
    • 1...Rf8
      • 2.Qd5#
    • 1...Rg8
      • 2.Qd5#
    • 1...Bd7
      • 2.Qd5#
  • Keys
    • 1.Qc6!
      • threat
        • 2.Qb5#
      • 1...Rcxd3+
        • 2.Be3#
      • 1...Rdxd3+
        • 2.Be3#
      • 1...Kxd3
        • 2.Bf1#
      • 1...Ba6
        • 2.Qxa6#
      • 1...Bd7
        • 2.Qd5#
      • 1...f3
        • 2.Sb2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • R(i);N_GUARD::QAB1(D),XR(i)
    • R(i);N_GUARD::QAB1(D)
    • B(h);S_CUTR(i)::QAB1(D)
  • Actual
    • Q(D);P_SPINS(C)
    • Threat
      • QAB1(D)
    • Vars
      • R(d);CHECK,SBLOCK,XS(C)::QAR(D)+B(G)
      • R(i);CHECK,SBLOCK,XS(C)::QAR(D)+B(G)
      • K(e);OGATEB,S_FLIGHT,XS(C)::B(A)
      • B(h);N_GUARD::QAB(D),XB(h)
      • B(h);S_CUTR(i)::QAB1(D)
      • P(f);N_PINS(C)::S(C)
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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).