MESON Chess Problem Database

Problem Display
PID: 187697 (8/4N3/1p1p3K/1p2P1N1/1P1k1np1/1Pp1p3/4Pn2/Q7 w - - 0 1)

van Dijk, Johannes

Haagsche Courant, 1909

8/4N3/1p1p3K/1p2P1N1/1P1k1np1/1Pp1p3/4Pn2/Q7

#2

8 + 9

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe5
      • 2.Qxc3#
    • 1...Sd5
      • 2.Sc6#
    • 1...d5
      • 2.Sc6#
  • Keys
    • 1.Qa8!
      • 1...Kxe5
        • 2.Qh8#
      • 1...Sxe2
        • 2.Qd5#
      • 1...dxe5
        • 2.Sf5#
      • 1...c2
        • 2.Qa1#
      • 1...Sd1
        • 2.Qe4#
      • 1...Sh1
        • 2.Qe4#
      • 1...S2d3
        • 2.Qe4#
      • 1...S2h3
        • 2.Qe4#
      • 1...Se4
        • 2.Qxe4#
      • 1...Sg2
        • 2.Qd5#
      • 1...S4d3
        • 2.Qd5#
      • 1...S4h3
        • 2.Qd5#
      • 1...Sd5
        • 2.Sc6#
        • 2.Qxd5#
      • 1...Sh5
        • 2.Qd5#
      • 1...Se6
        • 2.Qd5#
      • 1...Sg6
        • 2.Qd5#
      • 1...g3
        • 2.Sf3#
      • 1...d5
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 15
    • REMOVED MATES = 1
  • Sets
    • K(d);S_FLIGHT,XP(E)::QAB(A),XP(b)
    • S(e);SBLOCK::S(H)
    • P(i);SBLOCK::S(H)
  • Actual
    • Q(A);N_PINP(b)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XP(E)::QAB(A)
      • S(e);N_GUARD,XP(B)::QAR1(A)
      • P(i);SBLOCK,XP(E)::S(H)
      • P(b);OGATEB::QAB(A)
      • S(a);N_GUARD::QAR1(A)
      • S(a);N_GUARD::QAR1(A),XS(a)
      • S(e);N_GUARD::QAR1(A)
      • P(f);N_GUARD::S(F)
      • P(i);SBLOCK::S(H)
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).