MESON Chess Problem Database

Problem Display
PID: 76808 (4K3/7B/5k2/4p3/4p2R/4P3/8/4Q3 w - - 0 1)

Butwillo, Brother

The Tablet, 1945

(First published on Sat Oct 27 1945)

4K3/7B/5k2/4p3/4p2R/4P3/8/4Q3

#2

5 + 3

15239 Valois Notebooks 2016

SOLUTION

  • SOUND
  • Tries
    • 1.Rh6+?
      • 1...Kg5
        • 2.Qh4#
      • 1...Kg7!
    • 1.Qd2?
      • 1...Kg5
        • 2.Qd8#
      • 1...Ke6
        • 2.Rh6#
      • 1...Kg7!
    • 1.Qc3?
      • 1...Ke6
        • 2.Qc6#
      • 1...Kg7
        • 2.Qxe5#
      • 1...Kg5!
    • 1.Qb4?
      • threat
        • 2.Qe7#
      • 1...Kg5
        • 2.Qe7#
      • 1...Kg7
        • 2.Qf8#
      • 1...Ke6!
    • 1.Qd1?
      • 1...Kg5
        • 2.Qd8#
      • 1...Ke6
        • 2.Rh6#
      • 1...Kg7!
  • Keys
    • 1.Qa5!
      • 1...Kg5
        • 2.Qd8#
      • 1...Ke6
        • 2.Rh6#
      • 1...Kg7
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • K(c);S_FLIGHT::QAB1(A)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(c);S_FLIGHT::QAB(A)
        • K(c);P-FLIGHT::R(C)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(A);P_PINP(b)
      • Vars
        • K(c);N_SPINP(b),P-FLIGHT::QAR2(A)
        • K(c);S_FLIGHT::QAB(A),XP(b)
      • Refutation
        • K(c);N_SPINP(b),S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(c);S_FLIGHT::QAB(A)
        • K(c);S_FLIGHT::QAB1(A)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(c);S_FLIGHT::QAB(A)
        • K(c);P-FLIGHT::R(C)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(c);P_SPINP(b),S_FLIGHT::QAB(A)
      • K(c);P-FLIGHT::R(C)
      • K(c);S_FLIGHT::QAB(A),XP(b)
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).