MESON Chess Problem Database

Problem Display
PID: 120054 (1n6/Q1p2K1p/bN1p3B/1p1Pk3/1P2B2P/5P2/5P2/8 w - - 0 1)

van Eelde, Antonie Clarus Johannes

Haagsche Courant, 1899

1n6/Q1p2K1p/bN1p3B/1p1Pk3/1P2B2P/5P2/5P2/8

#2

10 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Bg7#
    • 1...Bb7
      • 2.Qa1#
    • 1...Bc8
      • 2.Qa1#
    • 1...Sc6
      • 2.Sd7#
    • 1...Sd7
      • 2.Sxd7#
  • Tries
    • 1.Ke8?
      • 1...Kd4
        • 2.Bg7#
      • 1...cxb6
        • 2.Qg7#
      • 1...Bb7
        • 2.Qa1#
      • 1...Bc8
        • 2.Qa1#
      • 1...Sc6
        • 2.Sd7#
      • 1...Sd7
        • 2.Sxd7#
      • 1...c5
        • 2.Qg7#
      • 1...c6
        • 2.Qg7#
      • 1...Kf6!
    • 1.Kg8?
      • 1...Kd4
        • 2.Bg7#
      • 1...cxb6
        • 2.Qg7#
      • 1...Bb7
        • 2.Qa1#
      • 1...Bc8
        • 2.Qa1#
      • 1...Sc6
        • 2.Sd7#
      • 1...Sd7
        • 2.Sxd7#
      • 1...c5
        • 2.Qg7#
      • 1...c6
        • 2.Qg7#
      • 1...Kf6!
    • 1.Qxb8?
      • threat
        • 2.Qh8#
      • 1...Kd4
        • 2.Bg7#
        • 2.Qh8#
      • 1...Bc8!
    • 1.Qxc7?
      • threat
        • 2.Qc3#
      • 1...Kd4
        • 2.Bg7#
      • 1...Sc6!
  • Keys
    • 1.Kf8!
      • 1...Sd7+
        • 2.Sxd7#
      • 1...Kd4
        • 2.Bg7#
      • 1...Kf6
        • 2.Bg7#
      • 1...cxb6
        • 2.Qg7#
      • 1...Bb7
        • 2.Qa1#
      • 1...Bc8
        • 2.Qa1#
      • 1...Sc6
        • 2.Sd7#
      • 1...c5
        • 2.Qg7#
      • 1...c6
        • 2.Qg7#

This is a version

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::B(H)
    • B(c);OGATE::QAB(I)
    • S(g);N_GUARD::S(G)
    • S(g);N_GUARD::S(G),XS(g)
  • Tries
    • Try
      • K(J);S_FLIGHT
      • Vars
        • K(b);S_FLIGHT::B(H)
        • P(e);OGATE,XS(G)::QAB(I)
        • B(c);OGATE::QAB(I)
        • S(g);N_GUARD::S(G)
        • S(g);N_GUARD::S(G),XS(g)
        • P(e);OGATE::QAB(I)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • K(J);S_FLIGHT
      • Vars
        • K(b);S_FLIGHT::B(H)
        • P(e);OGATE,XS(G)::QAB(I)
        • B(c);OGATE::QAB(I)
        • S(g);N_GUARD::S(G)
        • S(g);N_GUARD::S(G),XS(g)
        • P(e);OGATE::QAB(I)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(I);XS(g)
      • Threat
        • QAB(I)
      • Refutation
        • B(c);
    • Try
      • Q(I);P_PINP(d),XP(e)
      • Threat
        • QAB(I)
      • Vars
        • K(b);N_SPINP(d),S_FLIGHT::B(H)
      • Refutation
        • S(g);
  • Actual
    • K(J);P-FLIGHT
    • Vars
      • S(g);CHECK,N_GUARD::S(G),XS(g)
      • K(b);S_FLIGHT::B(H)
      • P(e);OGATE,XS(G)::QAB(I)
      • B(c);OGATE::QAB(I)
      • S(g);N_GUARD::S(G)
      • P(e);OGATE::QAB(I)
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).