Problem Display
PID: 76805 (8/4pK2/5p1B/5kb1/4pP2/8/4B1P1/7Q w - - 0 1)

Butwillo, Brother

The Tablet, 1945

(First published on Sat Sep 29 1945)

8/4pK2/5p1B/5kb1/4pP2/8/4B1P1/7Q

#2

6 + 5


15239 Valois Notebooks 2016

SOLUTION


  • SOUND
  • Sets
    • 1...Bh4
      • 2.Qh3#
      • 2.g4#
  • Tries
    • 1.Bxg5?
      • threat
        • 2.Qh3#
        • 2.Qh7#
        • 2.g4#
      • 1...e3
        • 2.Qb1#
        • 2.Qh7#
        • 2.g4#
      • 1...fxg5!
    • 1.Qc1?
      • threat
        • 2.g4#
      • 1...Bxf4
        • 2.Qxf4#
      • 1...e3!
    • 1.Qf1?
      • threat
        • 2.g4#
      • 1...Bxf4
        • 2.Qxf4#
      • 1...e3!
    • 1.Qh2?
      • threat
        • 2.g4#
      • 1...Bxf4
        • 2.Qxf4#
      • 1...e3!
    • 1.g3?
      • threat
        • 2.Qh3#
      • 1...e3
        • 2.Qb1#
      • 1...Bxf4!
  • Keys
    • 1.Qh4!
      • threat
        • 2.Qg4#
      • 1...Bxf4
        • 2.Qxf4#
      • 1...Bxh4
        • 2.g4#
      • 1...e3
        • 2.Bd3#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(E);XB(c)
      • Threat
        • DUALS(3)
      • Refutation
        • P(d);XB(E)
    • Try
      • Q(A);
      • Threat
        • P(C)
      • Vars
        • B(c);OGATE,XP(D)::QAR1(A),XB(c)
      • Refutation
        • P(a);
    • Try
      • Q(A);
      • Threat
        • P(C)
      • Vars
        • B(c);OGATE,P_SPINB(c),XP(D)::QAR1(A),XB(c)
      • Refutation
        • P(a);
    • Try
      • Q(A);
      • Threat
        • P(C)
      • Vars
        • B(c);OGATE,XP(D)::QAR1(A),XB(c)
      • Refutation
        • P(a);
    • Try
      • P(C);
      • Threat
        • QAB(A)
      • Vars
        • P(a);OGATEB::QAB(A)
      • Refutation
        • B(c);XP(D)
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • B(c);OGATE,XP(D)::QAR1(A),XB(c)
      • B(c);XQ(A)::P(C)
      • P(a);OGATEB::B(B)


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).