Problem Display
PID: 48619 (8/B7/5PK1/2npk3/1N5p/7B/2PN4/2Q5 w - - 0 1)

Taylor, Jesse Paul

Illustrated London News, 0000

8/B7/5PK1/2npk3/1N5p/7B/2PN4/2Q5

#2

8 + 4


5024 Elementary Chess Problems 1880

SOLUTION


  • SOUND
  • Sets
    • 1...Kd6
      • 2.Bb8#
    • 1...d4
      • 2.Bb8#
  • Tries
    • 1.Sf3+?
      • 1...Kd6
        • 2.Bb8#
        • 2.Qf4#
      • 1...Ke4!
    • 1.Qb2+?
      • 1...Kd6
        • 2.Bb8#
      • 1...d4
        • 2.Bb8#
      • 1...Kf4!
    • 1.Qa1+?
      • 1...Kd6
        • 2.Bb8#
      • 1...d4
        • 2.Bb8#
      • 1...Kf4!
  • Keys
    • 1.Qa3!
      • 1...Kd4
        • 2.Sc6#
      • 1...Kf4
        • 2.Bb8#
      • 1...Kd6
        • 2.Bb8#
      • 1...Sb3
        • 2.Sd3#
      • 1...Sd3
        • 2.Sxd3#
      • 1...Sa4
        • 2.Sd3#
      • 1...Se4
        • 2.Sd3#
      • 1...Sa6
        • 2.Sd3#
      • 1...Se6
        • 2.Sd3#
      • 1...Sb7
        • 2.Sd3#
      • 1...Sd7
        • 2.Sd3#
      • 1...d4
        • 2.Bb8#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • K(d);S_FLIGHT::B(H)
    • P(c);SBLOCK::B(H)
  • Tries
    • Try
      • S(C);CHECK
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(d);S_FLIGHT::B(H)
        • P(c);P_SPINP(c)::B(H)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(d);S_FLIGHT::B(H)
        • P(c);P_SPINP(c)::B(H)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(d);P_SPINS(b),S_FLIGHT::S(E)
      • K(d);S_FLIGHT::B(H)
      • S(b);N_GUARD::S(E)
      • S(b);N_GUARD::S(E),XS(b)
      • P(c);SBLOCK::B(H)


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).