MESON Chess Problem Database

Problem Display
PID: 66570 (1b4Q1/3p3n/1p2p3/5b1N/2Ppk2p/3N3p/3KP2B/7n w - - 0 1)

van der Goot, HH

Tijdschrift vd NSB, 1897

1b4Q1/3p3n/1p2p3/5b1N/2Ppk2p/3N3p/3KP2B/7n

#2

7 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Bg6
      • 2.Qxg6#
    • 1...Bd6
      • 2.Qa8#
    • 1...Sf2
      • 2.Sxf2#
    • 1...Sg5
      • 2.Sf6#
    • 1...Sf6
      • 2.Sxf6#
    • 1...Sf8
      • 2.Sf6#
    • 1...b5
      • 2.Sc5#
    • 1...e5
      • 2.Qd5#
  • Tries
    • 1.Qg4+?
      • 1...Bf4+
        • 2.Qxf4#
      • 1...Bxg4!
    • 1.Qxb8?
      • threat
        • 2.Qf4#
        • 2.Qe5#
      • 1...e5
        • 2.Qxe5#
      • 1...d6!
  • Keys
    • 1.Bd6!
      • 1...Bxd6
        • 2.Qa8#
      • 1...Bg4
        • 2.Qxg4#
      • 1...Bg6
        • 2.Qxg6#
      • 1...Ba7
        • 2.Qa8#
      • 1...Bc7
        • 2.Qa8#
      • 1...Sf2
        • 2.Sxf2#
      • 1...Sg3
        • 2.Sf2#
      • 1...Sg5
        • 2.Sf6#
      • 1...Sf6
        • 2.Sxf6#
      • 1...Sf8
        • 2.Sf6#
      • 1...h2
        • 2.Qg2#
      • 1...b5
        • 2.Sc5#
      • 1...e5
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(f);OGATEB::QAB(G),XB(f)
    • B(k);OGATE::QAB(G)
    • S(a);N_GUARD::S(D),XS(a)
    • S(j);N_GUARD::S(F)
    • S(j);N_GUARD::S(F),XS(j)
    • P(g);N_GUARD::S(D)
    • P(h);OGATE::QAB1(G)
  • Tries
    • Try
      • Q(G);CHECK
      • Vars
        • B(k);CHECK,N_GUARD,P_SPINB(k)::QAR1(G),XB(k)
      • Refutation
        • B(f);XQ(G)
    • Try
      • Q(G);XB(k)
      • Threat
        • DUALS(2)
      • Vars
        • P(h);::QAR1(G),XP(h)
      • Refutation
        • P(i);
  • Actual
    • B(C);
    • Vars
      • B(k);OGATE,XB(C)::QAB(G)
      • B(f);N_GUARD::QAR2(G),XB(f)
      • B(f);OGATEB::QAB(G),XB(f)
      • B(k);OGATE::QAB(G)
      • S(a);N_GUARD::S(D),XS(a)
      • S(a);N_GUARD::S(D)
      • S(j);N_GUARD::S(F)
      • S(j);N_GUARD::S(F),XS(j)
      • P(b);N_GUARD::QAB(G)
      • P(g);N_GUARD::S(D)
      • P(h);OGATE::QAB1(G)
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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).