MESON Chess Problem Database

Problem Display
PID: 187887 (3BK3/1p1P1p2/bP6/q3kP2/4N3/bN3Q2/3P4/8 w - - 0 1)

Koetsheid, Petrus Albertus

Hamburg Ty., 1910

3BK3/1p1P1p2/bP6/q3kP2/4N3/bN3Q2/3P4/8

#2

9 + 6

5454 Near Snap 2019
6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qd5
      • 2.Bf6#
  • Keys
    • 1.Sd6!
      • threat
        • 2.Sxf7#
      • 1...Kxd6
        • 2.Bc7#
      • 1...Bxd6
        • 2.d4#
      • 1...Qd5
        • 2.Qg3#
      • 1...Bc4
        • 2.Sxc4#
      • 1...f6
        • 2.Sf7#

Anticipated by 181803(1905)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • Q(b);SBLOCK::B(H)
  • Actual
    • S(D);
    • Threat
      • S(D),XP(f)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(D)::B(H)
      • B(a);SBLOCK,XS(D)::P(A)
      • Q(b);SBLOCK::QAB(C)
      • B(d);N_GUARD::S(D),XB(d)
      • P(f);::S(D)
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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).