MESON Chess Problem Database

Problem Display
PID: 244140 (3bN1B1/2p4r/7p/3P1R1K/P1pBk1P1/R2bP2n/2r5/qQn5 w - - 0 1)

Bennett, Frederick

Chess World (The), 1947

3bN1B1/2p4r/7p/3P1R1K/P1pBk1P1/R2bP2n/2r5/qQn5

#2

11 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Re7
      • 2.Sf6#
    • 1...Bf6
      • 2.Sxf6#
    • 1...Sg1
      • 2.Rf4#
    • 1...Sf2
      • 2.Rf4#
    • 1...Sf4+
      • 2.Rxf4#
    • 1...Sg5
      • 2.Rf4#
    • 1...c5
      • 2.Sd6#
    • 1...c6
      • 2.Sd6#
  • Keys
    • 1.Qb6!
      • threat
        • 2.Qe6#
      • 1...Sf4+
        • 2.Rxf4#
      • 1...Qxd4
        • 2.Qxd4#
      • 1...cxb6
        • 2.Sd6#
      • 1...Re7
        • 2.Sf6#
      • 1...Bf6
        • 2.Sxf6#
      • 1...Sg5
        • 2.Rf4#
      • 1...c6
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(j);S_CUTB(k)::S(J)
    • B(k);N_GUARD::S(J),XB(k)
    • S(e);N_GUARD::R1(H)
    • S(e);CHECK,N_GUARD::R1(H),XS(e)
    • P(i);N_GUARD::S(J)
  • Actual
    • Q(A);
    • Threat
      • QAR2(A)
    • Vars
      • S(e);CHECK,N_GUARD::R1(H),XS(e)
      • Q(a);OGATE,XB(E)::QAR1(A),XQ(a)
      • P(i);N_GUARD,XQ(A)::S(J)
      • R(j);S_CUTB(k)::S(J)
      • B(k);N_GUARD::S(J),XB(k)
      • S(e);N_GUARD::R1(H)
      • P(i);N_GUARD::S(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).