Problem Display
PID: 216200 (3B4/4K3/8/2p1kp2/2PRp3/5p1P/1N3P2/8 w - - 0 1)

Collins, Francis Charles

A Collection of 107 Chess Problems, 1881

3B4/4K3/8/2p1kp2/2PRp3/5p1P/1N3P2/8

#2

7 + 5


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Sets
    • 1...cxd4
      • 2.Bc7#
    • 1...f4
      • 2.Rd5#
  • Keys
    • 1.Kf7!
      • 1...Kxd4
        • 2.Bf6#
      • 1...Kf4
        • 2.Sd3#
      • 1...cxd4
        • 2.Bc7#
      • 1...e3
        • 2.Bf6#
      • 1...f4
        • 2.Rd5#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK,XR(E)::B(G)
    • P(e);SBLOCK::R1(E)
  • Actual
    • K(F);P-FLIGHT
    • Vars
      • K(d);S_FLIGHT,XR(E)::B(G)
      • K(d);P_SPINP(b),S_FLIGHT::S(A)
      • P(c);SBLOCK,XR(E)::B(G)
      • P(b);::B(G)
      • P(e);SBLOCK::R1(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).