MESON Chess Problem Database

Problem Display
PID: 244146 (1qn5/2b5/2R1p1N1/1n1k1r2/2R1bpp1/1Pp2p2/Q5B1/2K5 w - - 0 1)

Bennett, Frederick

Chess World (The), 1948

1qn5/2b5/2R1p1N1/1n1k1r2/2R1bpp1/1Pp2p2/Q5B1/2K5

#2

7 + 12

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Sxf4#
    • 1...Sd4
      • 2.R4c5#
    • 1...Sbd6
      • 2.R6c5#
    • 1...Scd6
      • 2.R6c5#
    • 1...f2
      • 2.Bxe4#
  • Keys
    • 1.Qe2!
      • threat
        • 2.Qxe4#
      • 1...fxe2
        • 2.Bxe4#
      • 1...Re5
        • 2.Sxf4#
      • 1...Bb1
        • 2.Qxe6#
      • 1...Bc2
        • 2.Qxe6#
      • 1...Bd3
        • 2.Qxe6#
      • 1...Sd4
        • 2.R4c5#
      • 1...Sbd6
        • 2.R6c5#
      • 1...Scd6
        • 2.R6c5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • R(h);N_GUARD,SBLOCK,S_CUTB(j)::S(G),XP(d)
    • S(f);SBLOCK::R1(E)
    • S(f);SBLOCK::R1(F)
    • S(l);SBLOCK::R1(F)
    • P(b);OGATE,P_SPINB(c)::B(C),XB(c)
  • Actual
    • Q(B);
    • Threat
      • QAB1(B),XB(c)
    • Vars
      • P(b);OGATE,P_SPINB(c),XQ(B)::B(C),XB(c)
      • R(h);N_GUARD,SBLOCK,S_CUTB(j)::S(G),XP(d)
      • B(c);OGATE,P_SPINP(b)::QAB1(B),XP(i)
      • S(f);SBLOCK::R1(E)
      • S(f);SBLOCK::R1(F)
      • S(l);SBLOCK::R1(F)
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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).