Problem Display
PID: 157369 (1Q2rB2/5p1b/4pP2/6n1/3pP3/4kN1p/2PN4/5K2 w - - 0 1)

Giacobbe, Daniele

Best Problems, 2008

1Q2rB2/5p1b/4pP2/6n1/3pP3/4kN1p/2PN4/5K2

#2

8 + 8


SOLUTION


  • SOUND
  • Sets
    • 1...d3
      • 2.Bc5#
  • Tries
    • 1.Qe5?
      • threat
        • 2.Qxg5#
      • 1...Sxf3
        • 2.Sc4#
      • 1...Sxe4
        • 2.Bh6#
      • 1...Bf5!
  • Keys
    • 1.Qg3!
      • threat
        • 2.Qxg5#
      • 1...Sxf3
        • 2.Bh6#
      • 1...Sxe4
        • 2.Sc4#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • P(c);OGATEB::B(H)
  • Tries
    • Try
      • Q(G);
      • Threat
        • QAB(G),XS(d)
      • Vars
        • S(d);SBLOCK,XS(D)::S(C)
        • S(d);OGATEB,P_SPINS(d),XP(E)::B(H)
      • Refutation
        • B(g);
  • Actual
    • Q(G);
    • Threat
      • QAB(G),XS(d)
    • Vars
      • S(d);OGATEB,P_SPINS(d),XS(D)::B(H)
      • S(d);SBLOCK,XP(E)::S(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).