MESON Chess Problem Database

Problem Display
PID: 205802 (1B6/6K1/PRN5/bpk1N3/2P5/2n1P3/8/3B4 w - - 0 1)

Cassani, Francesco

L'Alfiere di Re, 1925

1B6/6K1/PRN5/bpk1N3/2P5/2n1P3/8/3B4

#2

9 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sb1
      • 2.Rxb5#
    • 1...Sxd1
      • 2.Rxb5#
    • 1...Sa2
      • 2.Rxb5#
    • 1...Se2
      • 2.Rxb5#
    • 1...Sa4
      • 2.Rxb5#
    • 1...Se4
      • 2.Rxb5#
    • 1...Sd5
      • 2.Rxb5#
  • Keys
    • 1.Sb4!
      • 1...Kxb4
        • 2.Bd6#
      • 1...Kxb6
        • 2.Sd7#
      • 1...Bxb4
        • 2.Rc6#
      • 1...Bxb6
        • 2.Sbd3#
      • 1...Sxd1
        • 2.Rxb5#
      • 1...bxc4
        • 2.Sd7#
      • 1...Sb1
        • 2.Rxb5#
      • 1...Sa2
        • 2.Rxb5#
      • 1...Se2
        • 2.Rxb5#
      • 1...Sa4
        • 2.Rxb5#
      • 1...Se4
        • 2.Rxb5#
      • 1...Sd5
        • 2.Rxb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::R1(F),XP(c)
    • S(a);N_GUARD,XB(A)::R1(F),XP(c)
  • Actual
    • S(G);
    • Vars
      • K(d);P_SPINP(c),S_FLIGHT,XS(G)::B(I)
      • K(d);S_FLIGHT,XR(F)::S(D)
      • B(b);SBLOCK,XS(G)::R1(F)
      • B(b);SBLOCK,XR(F)::S(G)
      • S(a);N_GUARD,XB(A)::R1(F),XP(c)
      • P(c);SBLOCK,XP(C)::S(D)
      • S(a);N_GUARD::R1(F),XP(c)
HTML5 logo

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).