MESON Chess Problem Database

Problem Display
PID: 76542 (5K2/5B2/3p1k1P/7r/8/4Q3/7B/8 w - - 0 1)

Butwillo, Brother

The Tablet, 1935

(First published on Sat Mar 30 1935)

5K2/5B2/3p1k1P/7r/8/4Q3/7B/8

#2

5 + 3

15239 Valois Notebooks 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Kf5
      • 2.Qf4#
    • 1...Rxh2
      • 2.Qf4#
    • 1...Rh3
      • 2.Qf4#
    • 1...Rf5
      • 2.Qe7#
    • 1...Rg5
      • 2.Qe6#
    • 1...Rxh6
      • 2.Qf4#
  • Tries
    • 1.Bxh5?
      • 1...d5
        • 2.Qe5#
      • 1...Kf5!
    • 1.Qf2+?
      • 1...Kg5
        • 2.Qf4#
      • 1...Rf5!
    • 1.Qd4+?
      • 1...Kf5
        • 2.Qf4#
      • 1...Kg5
        • 2.Qf4#
      • 1...Re5!
    • 1.Qf3+?
      • 1...Kg5
        • 2.Qf4#
      • 1...Rf5!
    • 1.Qg3?
      • threat
        • 2.Qg6#
      • 1...Kf5
        • 2.Qf4#
        • 2.Qg6#
      • 1...Rxh2
        • 2.Qf4#
      • 1...Rxh6
        • 2.Qf4#
      • 1...Rg5!
  • Keys
    • 1.Qe4!
      • threat
        • 2.Qg6#
      • 1...Kg5
        • 2.Qf4#
      • 1...Rxh2
        • 2.Qf4#
      • 1...Rxh6
        • 2.Qf4#
      • 1...Rf5
        • 2.Qe7#
      • 1...Rg5
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • K(c);P-FLIGHT::QAR1(B)
    • R(a);N_GUARD,XB(A)::QAR2(B)
    • R(a);N_GUARD::QAR2(B)
    • R(a);SBLOCK::QAB1(B)
    • R(a);SBLOCK::QAR1(B)
    • R(a);N_GUARD,XP(C)::QAR2(B)
  • Tries
    • Try
      • B(D);XR(a)
      • Vars
        • P(b);N_GUARD::QAB1(B)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);S_FLIGHT::QAB1(B)
      • Refutation
        • R(a);P_SPINR(a)
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(B)
        • K(c);S_FLIGHT::QAB1(B)
      • Refutation
        • R(a);P_SPINR(a)
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);S_FLIGHT::QAB1(B)
      • Refutation
        • R(a);P_SPINR(a)
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • R(a);N_GUARD,XB(A)::QAR2(B)
        • R(a);N_GUARD,XP(C)::QAR2(B)
      • Refutation
        • R(a);
  • Actual
    • Q(B);
    • Threat
      • QAR1(B)
    • Vars
      • K(c);S_FLIGHT::QAB1(B)
      • R(a);N_GUARD,XB(A)::QAR2(B)
      • R(a);N_GUARD,XP(C)::QAR2(B)
      • R(a);SBLOCK::QAB1(B)
      • R(a);SBLOCK::QAR1(B)
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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).