MESON Chess Problem Database

Problem Display
PID: 76747 (4K3/8/8/5kp1/6N1/7R/8/4Q3 w - - 0 1)

Butwillo, Brother

The Tablet, 1944

(First published on Sat Oct 21 1944)

4K3/8/8/5kp1/6N1/7R/8/4Q3

#2

4 + 2

5454 Near Snap 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Rg3?
      • 1...Kf4
        • 2.Qe5#
      • 1...Kg6!
    • 1.Qg3?
      • 1...Ke4
        • 2.Qe5#
      • 1...Ke6
        • 2.Qe5#
      • 1...Kg6!
    • 1.Qe2?
      • 1...Kf4
        • 2.Qf3#
      • 1...Kg6!
    • 1.Qe3?
      • 1...Kxg4
        • 2.Qf3#
      • 1...Kg6!
    • 1.Qe5+?
      • 1...Kg6
        • 2.Rh6#
        • 2.Qf6#
      • 1...Kxg4!
  • Keys
    • 1.Qc3!
      • 1...Ke4
        • 2.Qe5#
      • 1...Kf4
        • 2.Qf3#
      • 1...Kxg4
        • 2.Qf3#
      • 1...Ke6
        • 2.Qe5#
      • 1...Kg6
        • 2.Qf6#

This anticipates 79850(1991), 171325(1994)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT,XS(C)::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);S_FLIGHT,XS(C)
  • Actual
    • Q(A);
    • Vars
      • K(a);S_FLIGHT::QAR1(A)
      • K(a);P-FLIGHT::QAR1(A)
      • K(a);S_FLIGHT,XS(C)::QAB1(A)
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).