MESON Chess Problem Database

Problem Display
PID: 43255 (2Nb4/KN2p3/nP2Pp2/1Ppk4/5Pp1/1p1PQ1P1/1B3n2/8 w - - 0 1)

Boumeester, Hendrikus Bernardus Franciscus

Probleemblad, 2002

2Nb4/KN2p3/nP2Pp2/1Ppk4/5Pp1/1p1PQ1P1/1B3n2/8

#2

11 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bxb6+
      • 2.Sxb6#
    • 1...Bc7
      • 2.Sxe7#
    • 1...Sd1
      • 2.Qe4#
    • 1...Sh1
      • 2.Qe4#
    • 1...Sh3
      • 2.Qe4#
    • 1...Se4
      • 2.Qxe4#
    • 1...f5
      • 2.Qe5#
  • Keys
    • 1.f5!
      • 1...Bxb6+
        • 2.Sxb6#
      • 1...Sxd3
        • 2.Qxd3#
      • 1...Sb4
        • 2.Qxc5#
      • 1...Bc7
        • 2.Sxe7#
      • 1...Sd1
        • 2.Qe4#
      • 1...Sh1
        • 2.Qe4#
      • 1...Sh3
        • 2.Qe4#
      • 1...Se4
        • 2.Qxe4#
      • 1...Sc7
        • 2.Qxc5#
      • 1...Sb8
        • 2.Qxc5#
      • 1...c4
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • B(i);CHECK,XP(G)::S(K),XB(i)
    • B(i);N_GUARD::S(K),XP(h)
    • S(a);N_GUARD::QAB1(C)
    • S(a);N_GUARD::QAB1(C),XS(a)
    • P(g);N_GUARD::QAR1(C)
  • Actual
    • P(E);
    • Vars
      • B(i);CHECK,XP(G)::S(K),XB(i)
      • S(a);OGATE,XP(B)::QAR2(C),XS(a)
      • S(f);N_GUARD::QAR1(C),XP(d)
      • B(i);N_GUARD::S(K),XP(h)
      • S(a);N_GUARD::QAB1(C)
      • S(a);N_GUARD::QAB1(C),XS(a)
      • P(d);N_GUARD::QAR1(C)
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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).