Problem Display
PID: 33003 (8/5p2/5K2/2pN1Q2/2pk4/2Rn4/8/8 w - - 0 1)

Pierce, William Timbrell

Source?, 0000

8/5p2/5K2/2pN1Q2/2pk4/2Rn4/8/8

#2

4 + 5


3501 Chess Problems by Pierces 1873

SOLUTION


  • SOUND
  • Sets
    • 1...Sc1
      • 2.Qe5#
    • 1...Se1
      • 2.Qe5#
    • 1...Sb2
      • 2.Qe5#
    • 1...Sf2
      • 2.Qe5#
    • 1...Sb4
      • 2.Qe5#
    • 1...Sf4
      • 2.Qe5#
    • 1...Se5
      • 2.Qxe5#
  • Tries
    • 1.Ra3?
      • 1...Se5
        • 2.Qxe5#
      • 1...Sc1
        • 2.Qe5#
      • 1...Se1
        • 2.Qe5#
      • 1...Sb2
        • 2.Qe5#
      • 1...Sf2
        • 2.Qe5#
      • 1...Sb4
        • 2.Qe5#
      • 1...Sf4
        • 2.Qe5#
      • 1...c3!
    • 1.Qe6?
      • 1...Se5
        • 2.Qxe5#
      • 1...Sc1
        • 2.Qe5#
      • 1...Se1
        • 2.Qe5#
      • 1...Sb2
        • 2.Qe5#
      • 1...Sf2
        • 2.Qe5#
      • 1...Sb4
        • 2.Qe5#
      • 1...Sf4
        • 2.Qe5#
      • 1...fxe6!
    • 1.Qg5?
      • 1...Se5
        • 2.Qxe5#
      • 1...Sc1
        • 2.Qe5#
      • 1...Se1
        • 2.Qe5#
      • 1...Sb2
        • 2.Qe5#
      • 1...Sf2
        • 2.Qe5#
      • 1...Sb4
        • 2.Qe5#
      • 1...Sf4
        • 2.Qe5#
      • 1...Ke4!
  • Keys
    • 1.Qh5!
      • 1...Ke4
        • 2.Rxc4#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sc1
        • 2.Qe5#
      • 1...Se1
        • 2.Qe5#
      • 1...Sb2
        • 2.Qe5#
      • 1...Sf2
        • 2.Qe5#
      • 1...Sb4
        • 2.Qe5#
      • 1...Sf4
        • 2.Qe5#

FEATURES


  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::QAB1(C)
    • S(a);N_GUARD::QAB1(C),XS(a)
  • Tries
    • Try
      • R(A);
      • Vars
        • S(a);N_GUARD::QAB1(C),XS(a)
        • S(a);N_GUARD::QAB1(C)
      • Refutation
        • P(b);
    • Try
      • Q(C);
      • Vars
        • S(a);N_GUARD::QAB1(C),XS(a)
        • S(a);N_GUARD::QAB1(C)
      • Refutation
        • P(e);XQ(C)
    • Try
      • Q(C);
      • Vars
        • S(a);N_GUARD::QAB1(C),XS(a)
        • S(a);N_GUARD::QAB1(C)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(c);P-FLIGHT::R(A),XP(b)
      • S(a);N_GUARD::QAB1(C),XS(a)
      • S(a);N_GUARD::QAB1(C)


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).