Problem Display
PID: 67069 (2n2NB1/q1prp3/1r1N4/4kPB1/2R2p2/4PP2/3P4/1b4K1 w - - 0 1)

Stocchi, Ottavio

Il Due Mosse TT, 1953-1954

2n2NB1/q1prp3/1r1N4/4kPB1/2R2p2/4PP2/3P4/1b4K1

#2

10 + 9


5407 Selected Stocchi (II) 2004
14475 Mat Plus Review 2007

SOLUTION


  • SOUND
  • Sets
    • 1...Sxd6
      • 2.Rc5#
  • Tries
    • 1.Sf7+?
      • 1...Kxf5
        • 2.Rxf4#
      • 1...Kd5!
  • Keys
    • 1.Be6!
      • threat
        • 2.Sf7#
      • 1...Kxd6
        • 2.Bxf4#
      • 1...Rbxd6
        • 2.Sg6#
      • 1...Rdxd6
        • 2.Sg6#
        • 2.exf4#
      • 1...Sxd6
        • 2.Sg6#
        • 2.Sxd7#
        • 2.Rc5#
        • 2.d4#
        • 2.exf4#
      • 1...cxd6
        • 2.Sg6#
        • 2.d4#
        • 2.exf4#
      • 1...exd6
        • 2.Sg6#
        • 2.Sxd7#
        • 2.d4#
        • 2.exf4#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(i);SBLOCK,XS(H)::R(E)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • K(c);P-FLIGHT,XP(F)::R1(E),XP(b)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • B(J);
    • Threat
      • S(H)
    • Vars
      • K(c);S_FLIGHT,XS(H)::B(G),XP(b)
      • R(d);P_PINP(C),SBLOCK,XS(H)::S(I)


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).