Problem Display
PID: 76397 (6N1/8/6p1/7k/8/5K2/5Q2/8 w - - 0 1)

Butwillo, Brother

The Tablet, 1928

(First published on Sat Jun 2 1928)

6N1/8/6p1/7k/8/5K2/5Q2/8

#2

3 + 2


1189 The Tablet 1943

SOLUTION


  • SOUND
  • Tries
    • 1.Qg1?
      • threat
        • 2.Qg4#
      • 1...Kh4
        • 2.Qg4#
      • 1...g5!
    • 1.Qe3?
      • threat
        • 2.Qh6#
      • 1...Kh4
        • 2.Qh6#
      • 1...g5!
    • 1.Qd4?
      • threat
        • 2.Qg4#
      • 1...Kg5
        • 2.Qg4#
      • 1...g5!
    • 1.Qd2?
      • threat
        • 2.Qh6#
      • 1...Kh4
        • 2.Qh6#
      • 1...g5!
    • 1.Qg2?
      • threat
        • 2.Qg4#
      • 1...Kh4
        • 2.Qg4#
      • 1...g5!
  • Keys
    • 1.Kg3!
      • 1...Kg5
        • 2.Qc5#
      • 1...g5
        • 2.Qf7#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • P(b);
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
      • Refutation
        • P(b);
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • P(b);
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
      • Refutation
        • P(b);
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • P(b);
  • Actual
    • K(B);P-FLIGHT
    • Vars
      • K(a);P-FLIGHT::QAR(A)
      • P(b);OGATEB,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).