Problem Display
PID: 174003 (3N4/4pqpN/4p3/4kpnR/2K1P3/2p3RP/2B5/6B1 w - - 0 1)

Bottacchi, Antonio

3rd HM., Il Secolo, 1921-1923

3N4/4pqpN/4p3/4kpnR/2K1P3/2p3RP/2B5/6B1

#2

9 + 8


6490 yacpdb 2018

SOLUTION


  • SOUND
  • Sets
    • 1...f4
      • 2.Sxf7#
  • Keys
    • 1.Bh2!
      • threat
        • 2.Rgxg5#
      • 1...Kf4
        • 2.Rxc3#
      • 1...Kd6
        • 2.Rd3#
      • 1...Sxh3
        • 2.Rgxh3#
      • 1...Sxe4
        • 2.Re3#
      • 1...Sxh7
        • 2.Rg6#
      • 1...Sf3
        • 2.Rxf3#
      • 1...f4
        • 2.Sxf7#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • P(c);P_SPINS(d),SBLOCK::S(I),XQ(g)
  • Actual
    • B(A);
    • Threat
      • B(A)+R(C),XS(d)
    • Vars
      • K(b);S_FLIGHT::B(A)+R(C),XP(a)
      • K(b);S_FLIGHT::B(A)+R(C),DCHECK
      • S(d);OGATE,P_SPINP(c),XP(D)::B(A)+R(C),XS(d)
      • S(d);P_SPINP(c),XP(F)::B(A)+R(C)
      • S(d);OGATE,P_SPINP(c),XS(H)::B(A)+R(C)
      • S(d);P_SPINP(c)::B(A)+R(C),XS(d)
      • P(c);P_SPINS(d),SBLOCK::S(I),XQ(g)


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).