MESON Chess Problem Database

Problem Display
PID: 233376 (8/B6N/8/5p2/2PpRpP1/5k2/2Q5/4K2b w - - 0 1)

Halliwell, Ernest

Pen & Pencil, 1889

(First published on Sat Oct 19 1889)

8/B6N/8/5p2/2PpRpP1/5k2/2Q5/4K2b

#2

7 + 5

15239 Valois Notebooks 2015

SOLUTION

  • SOUND
  • Tries
    • 1.Qf2+?
      • 1...Kxe4
        • 2.Qe2#
      • 1...Kxg4!
  • Keys
    • 1.Qh2!
      • 1...Kxe4
        • 2.Qe2#
      • 1...Kxg4
        • 2.Rxf4#
      • 1...fxe4
        • 2.Qh3#
      • 1...fxg4
        • 2.Sg5#
      • 1...Bg2
        • 2.Qxf4#
      • 1...d3
        • 2.Rxf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);S_FLIGHT,XR(D)::QAR2(B)
      • Refutation
        • K(b);P_SPINP(d),S_FLIGHT,XP(E)
  • Actual
    • Q(B);
    • Vars
      • K(b);S_FLIGHT,XR(D)::QAR2(B)
      • K(b);P_SPINP(d),S_FLIGHT,XP(E)::R1(D),XP(d)
      • P(e);SBLOCK,XR(D)::QAR2(B)
      • P(e);SBLOCK,XP(E)::S(G)
      • B(a);SBLOCK::QAR1(B),XP(d)
      • P(c);::R1(D),XP(d)
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).