Problem Display
PID: 76689 (8/8/3pp3/4k3/3pP2B/3K1P2/5R1b/3Q4 w - - 0 1)

Butwillo, Brother

The Tablet, 1944

(First published on Sat Mar 11 1944)

8/8/3pp3/4k3/3pP2B/3K1P2/5R1b/3Q4

#2

6 + 5


15239 Valois Notebooks 2016

SOLUTION


  • SOUND
  • Sets
    • 1...Bg1
      • 2.f4#
  • Tries
    • 1.Qc1?
      • threat
        • 2.Qg5#
      • 1...d5
        • 2.Qc7#
      • 1...Bf4!
  • Keys
    • 1.Qg1!
      • threat
        • 2.Qxh2#
        • 2.Qg5#
      • 1...Kf4
        • 2.Qxh2#
        • 2.Qg5#
      • 1...Bxg1
        • 2.f4#
      • 1...d5
        • 2.Qxh2#
      • 1...Bg3
        • 2.Qxg3#
      • 1...Bf4
        • 2.Qg7#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD::P(D)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAR2(A)
      • Vars
        • P(d);OGATEB::QAB(A)
      • Refutation
        • B(a);
  • Actual
    • Q(A);
    • Threat
      • DUALS(2)
    • Vars
      • B(a);N_GUARD,XQ(A)::P(D)
      • P(d);::QAB(A),XB(a)
      • B(a);N_GUARD::QAB(A),XB(a)
      • B(a);SBLOCK::QAB(A)


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).