Problem Display
PID: 183153 (3b4/1nB5/8/8/k1B2n2/2Q5/2b4K/8 w - - 0 1)

Kubbel, Leonid Ivanovich

Bohemia, 1907

3b4/1nB5/8/8/k1B2n2/2Q5/2b4K/8

#2

4 + 5


6490 yacpdb 2018
5454 Near Snap 2019
  • SOUND
  • Sets
    • 1...Bb1
      • 2.Qb3#
    • 1...Bb3
      • 2.Qxb3#
    • 1...Bd3
      • 2.Qb3#
    • 1...Be4
      • 2.Qb3#
    • 1...Bf5
      • 2.Qb3#
    • 1...Bg6
      • 2.Qb3#
    • 1...Bh7
      • 2.Qb3#
    • 1...Sa5
      • 2.Qxa5#
    • 1...Sc5
      • 2.Qa5#
    • 1...Sd6
      • 2.Qa5#
  • Tries
    • 1.Bd5?
      • threat
        • 2.Bc6#
      • 1...Kb5
        • 2.Qc4#
      • 1...Bb3
        • 2.Qxb3#
      • 1...Bd3
        • 2.Qb3#
      • 1...Be4
        • 2.Qb3#
      • 1...Sa5
        • 2.Qxa5#
      • 1...Sd6
        • 2.Qa5#
      • 1...Sxd5!
    • 1.Be6?
      • threat
        • 2.Bd7#
      • 1...Kb5
        • 2.Qc4#
      • 1...Bb3
        • 2.Qxb3#
      • 1...Bd3
        • 2.Qb3#
      • 1...Be4
        • 2.Qb3#
      • 1...Bf5
        • 2.Qb3#
      • 1...Sa5
        • 2.Qxa5#
      • 1...Sc5
        • 2.Qa5#
      • 1...Sd6
        • 2.Qa5#
      • 1...Sxe6!
    • 1.Qxc2+?
      • 1...Ka3
        • 2.Qb3#
      • 1...Kb4!
  • Keys
    • 1.Bf7!
      • threat
        • 2.Be8#
      • 1...Kb5
        • 2.Qc4#
      • 1...Bb3
        • 2.Qxb3#
      • 1...Bd3
        • 2.Qb3#
      • 1...Be4
        • 2.Qb3#
      • 1...Bf5
        • 2.Qb3#
      • 1...Bg6
        • 2.Qb3#
      • 1...Sa5
        • 2.Qxa5#
      • 1...Sc5
        • 2.Qa5#
      • 1...Sd6
        • 2.Qa5#

This anticipates 20985(1915)



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).