MESON Chess Problem Database

Problem Display
PID: 233706 (1b1N3K/4N1np/B4p2/4k2r/5R1p/1p1P4/1qbP1P2/B5Q1 w - - 0 1)

Tilsley, WB

Pen & Pencil, 1889

(First published on Sat Nov 9 1889)

1b1N3K/4N1np/B4p2/4k2r/5R1p/1p1P4/1qbP1P2/B5Q1

#2

10 + 10

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bd6
      • 2.Re4#
  • Keys
    • 1.Rd4!
      • threat
        • 2.f4#
      • 1...Kxd4
        • 2.f4#
      • 1...Qxd4
        • 2.Qh2#
      • 1...f5
        • 2.Qxg7#
      • 1...Rf5
        • 2.Sec6#
      • 1...Se6
        • 2.Sdc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • B(j);SBLOCK::R1(F)
  • Actual
    • R(F);N_PINQ(a)
    • Threat
      • P(D)
    • Vars
      • K(e);P_SPINQ(a),S_FLIGHT,XR(F)::QAB(B)+P(D)
      • Q(a);P_SPINQ(a),XR(F)::QAB(B)
      • P(g);OGATEB::QAB(B),XS(h)
      • R(f);SBLOCK::S(H)
      • S(h);SBLOCK::S(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).