MESON Chess Problem Database

Problem Display
PID: 159608 (8/4pr2/8/3pB3/K3k1B1/2Q1b2N/2n1Pn2/8 w - - 0 1)

Anonymous

BCPJ (May), 1919

8/4pr2/8/3pB3/K3k1B1/2Q1b2N/2n1Pn2/8

#2

6 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rf3
      • 2.exf3#
    • 1...Rf4
      • 2.Sg5#
    • 1...Bf4
      • 2.Sxf2#
    • 1...Bc5
      • 2.Sg5#
    • 1...Bg5
      • 2.Sxg5#
    • 1...Bb6
      • 2.Sg5#
    • 1...Ba7
      • 2.Sg5#
    • 1...Sd3
      • 2.exd3#
  • Keys
    • 1.Bf4!
      • threat
        • 2.Qe5#
      • 1...Rxf4
        • 2.Sg5#
      • 1...Bxf4
        • 2.Sxf2#
      • 1...Sxg4
        • 2.Qd3#
      • 1...d4
        • 2.Qc6#
      • 1...Rf5
        • 2.Bf3#
      • 1...Bd4
        • 2.Qf3#
      • 1...Sd4
        • 2.Qxe3#
      • 1...Sd3
        • 2.Qxd3#
        • 2.exd3#
      • 1...e5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 6
  • Sets
    • R(g);OGATE::P(A),XR(g)
    • R(g);S_CUTB(c)::S(C)
    • B(c);N_GUARD,S_CUTR(g)::S(C),XS(b)
    • B(c);N_GUARD::S(C)
    • B(c);N_GUARD::S(C),XB(c)
    • S(b);OGATE::P(A),XS(b)
  • Actual
    • B(F);
    • Threat
      • QAR1(B)
    • Vars
      • R(g);SBLOCK,XB(F)::S(C)
      • B(c);N_GUARD,SBLOCK,XB(F)::S(C),XS(b)
      • S(b);N_GUARD,XB(E)::QAB1(B)
      • P(e);OGATEB,SBLOCK::QAB(B)
      • R(g);SBLOCK::B(E)
      • B(c);OGATE,SBLOCK::QAB1(B)
      • S(a);N_GUARD::QAR1(B),XB(c)
      • P(f);::QAR1(B),XP(f)
HTML5 logo

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).