MESON Chess Problem Database

Problem Display
PID: 225052 (5K2/B2BpQ2/5p2/1p1Nr3/4k3/3N4/4P2n/4b3 w - - 0 1)

Chamberlain, Brian E

The Problemist Supplement, 2020

5K2/B2BpQ2/5p2/1p1Nr3/4k3/3N4/4P2n/4b3

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Re6
      • 2.Qxe6#
    • 1...Bd2
      • 2.Sf2#
    • 1...Bf2
      • 2.Sxf2#
      • 2.Sc3#
    • 1...Bc3
      • 2.Sf2#
      • 2.Sxc3#
    • 1...Bg3
      • 2.Sc3#
    • 1...Bb4
      • 2.Sf2#
    • 1...Bh4
      • 2.Sc3#
    • 1...Ba5
      • 2.Sf2#
  • Keys
    • 1.Qxf6!
      • threat
        • 2.Qxe5#
      • 1...Kxd5
        • 2.Qc6#
      • 1...Rxd5
        • 2.Qf4#
      • 1...exf6
        • 2.Sxf6#
      • 1...Rg5
        • 2.Qd4#
      • 1...Rf5
        • 2.Qxf5#
      • 1...Rh5
        • 2.Qd4#
      • 1...Re6
        • 2.Qxe6#
      • 1...Bc3
        • 2.Sxc3#
      • 1...Bg3
        • 2.Sc3#
      • 1...Sf3
        • 2.Qxf3#
      • 1...Sg4
        • 2.Qf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 4
  • Sets
    • R(e);OGATEB::QAR2(F),XR(e)
    • B(a);N_GUARD::S(B)
    • B(a);N_GUARD::S(C)
  • Actual
    • Q(F);XP(f)
    • Threat
      • QAR1(F),XR(e)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(C)::QAB1(F)
      • R(e);SBLOCK,XS(C)::QAR1(F)
      • P(g);XQ(F)::S(C),XP(g)
      • R(e);OGATE::QAR1(F)
      • R(e);N_GUARD,P_PINQ(F)::QAB1(F),XR(e)
      • R(e);OGATEB::QAR2(F),XR(e)
      • B(a);N_GUARD::S(C),XB(a)
      • B(a);N_GUARD::S(C)
      • S(b);N_GUARD::QAB1(F),XS(b)
      • S(b);N_GUARD::QAB1(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).