MESON Chess Problem Database

Problem Display
PID: 138898 (8/2p4Q/4pp2/2p1kN2/R7/5B1b/p6q/K1B4n w - - 0 1)

Cooper, Arthur Richard

Hampshire Telegraph, 1915

8/2p4Q/4pp2/2p1kN2/R7/5B1b/p6q/K1B4n

#2

6 + 9

56 The Problemist 1936

SOLUTION

  • SOUND
  • Sets
    • 1...Qg3
      • 2.Bb2#
    • 1...Qf4
      • 2.Bxf4#
    • 1...Qb2+
      • 2.Bxb2#
    • 1...Qc2
      • 2.Bf4#
    • 1...Qe2
      • 2.Bf4#
    • 1...Qf2
      • 2.Bf4#
    • 1...Qg2
      • 2.Bf4#
    • 1...Bg2
      • 2.Bb2#
    • 1...Bxf5
      • 2.Qxc7#
    • 1...Sf2
      • 2.Bb2#
    • 1...Sg3
      • 2.Bf4#
    • 1...exf5
      • 2.Qe7#
  • Keys
    • 1.Bc6!
      • threat
        • 2.Re4#
      • 1...Qb2+
        • 2.Bxb2#
      • 1...Bxf5
        • 2.Qxc7#
      • 1...exf5
        • 2.Qe7#
      • 1...Qf4
        • 2.Bxf4#
      • 1...Qc2
        • 2.Bf4#
      • 1...Qe2
        • 2.Bf4#
      • 1...Qg2
        • 2.Bf4#
      • 1...Bg2
        • 2.Bb2#
      • 1...Sf2
        • 2.Bb2#
      • 1...Sg3
        • 2.Bf4#
      • 1...c4
        • 2.Ra5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • Q(c);N_GUARD::B(B)
    • Q(c);N_GUARD::B(B),XQ(c)
    • Q(c);CHECK,N_GUARD::B(B),XQ(c)
    • B(d);S_CUTQ(c)::B(B)
    • B(d);SBLOCK,XS(E)::QAB(F),XP(i)
    • S(a);S_CUTQ(c)::B(B)
    • P(g);OGATEB,SBLOCK,XS(E)::QAR2(F)
  • Actual
    • B(C);
    • Threat
      • R1(D)
    • Vars
      • Q(c);CHECK,N_GUARD::B(B),XQ(c)
      • B(d);SBLOCK,XS(E)::QAB(F),XP(i)
      • P(g);OGATEB,SBLOCK,XS(E)::QAR2(F)
      • Q(c);N_GUARD::B(B),XQ(c)
      • Q(c);N_GUARD::B(B)
      • B(d);S_CUTQ(c)::B(B)
      • S(a);S_CUTQ(c)::B(B)
      • P(e);OGATEB::R(D)
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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).