Problem Display
PID: 63417 (4K2Q/2p3R1/2pk1p2/P4p2/2Bp4/3P4/8/8 w - - 0 1)

Shinkman, William Anthony

Source?, 0000

4K2Q/2p3R1/2pk1p2/P4p2/2Bp4/3P4/8/8

#2

6 + 6


16 Chess Amateur (The) 1909

SOLUTION


  • SOUND
  • Sets
    • 1...Kc5
      • 2.Qf8#
  • Tries
    • 1.Rd7+?
      • 1...Kc5
        • 2.Qf8#
      • 1...Ke5!
  • Keys
    • 1.Rg5!
      • 1...Kc5
        • 2.Qf8#
      • 1...Ke5
        • 2.Qh2#
      • 1...fxg5
        • 2.Qxd4#
      • 1...f4
        • 2.Qxf6#
        • 2.Qf8#
      • 1...c5
        • 2.Qxf6#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(d);S_FLIGHT::QAB(F)
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • K(d);S_FLIGHT::QAB(F)
      • Refutation
        • K(d);P_SPINP(e),S_FLIGHT
  • Actual
    • R(D);
    • Vars
      • K(d);P_SPINP(b),S_FLIGHT::QAB(F)
      • P(e);OGATE,XR(D)::QAR2(F),XP(a)
      • P(c);SBLOCK::QAR2(F),XP(e)


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).