Problem Display
PID: 40418 (8/6Q1/8/8/8/8/k1K5/2b5 w - - 0 1)

Rubens, Nathan

The Problemist, 1966

8/6Q1/8/8/8/8/k1K5/2b5

#2

2 + 2


136 Problem Observer 2001
3713 Snap 2019
  • SOUND
  • Sets
    • 1...Bb2
      • 2.Qxb2#
    • 1...Bd2
      • 2.Qb2#
    • 1...Be3
      • 2.Qb2#
    • 1...Bf4
      • 2.Qb2#
      • 2.Qa7#
    • 1...Bg5
      • 2.Qb2#
      • 2.Qa7#
    • 1...Bh6
      • 2.Qb2#
      • 2.Qa7#
  • Tries
    • 1.Qc3?
      • 1...Bb2
        • 2.Qxb2#
      • 1...Bd2
        • 2.Qb2#
      • 1...Be3
        • 2.Qb2#
        • 2.Qa5#
      • 1...Bf4
        • 2.Qb2#
        • 2.Qa5#
      • 1...Bg5
        • 2.Qb2#
        • 2.Qa5#
      • 1...Bh6
        • 2.Qb2#
        • 2.Qa5#
      • 1...Ba3!
    • 1.Qe5?
      • 1...Ka3
        • 2.Qa5#
      • 1...Bb2
        • 2.Qxb2#
      • 1...Bd2
        • 2.Qb2#
      • 1...Be3
        • 2.Qb2#
        • 2.Qa5#
      • 1...Bf4
        • 2.Qb2#
        • 2.Qa5#
      • 1...Bg5
        • 2.Qb2#
        • 2.Qa5#
      • 1...Bh6
        • 2.Qb2#
        • 2.Qa5#
      • 1...Ba3!
    • 1.Qf7+?
      • 1...Ka3
        • 2.Qb3#
      • 1...Ka1!
    • 1.Qg8+?
      • 1...Ka3
        • 2.Qb3#
      • 1...Ka1!
  • Keys
    • 1.Qb7!
      • 1...Ka1
        • 2.Qb1#
      • 1...Ka3
        • 2.Qb3#
      • 1...Ba3
        • 2.Qb1#
      • 1...Bb2
        • 2.Qxb2#
      • 1...Bd2
        • 2.Qb2#
      • 1...Be3
        • 2.Qa6#
        • 2.Qb2#
      • 1...Bf4
        • 2.Qa6#
        • 2.Qa8#
        • 2.Qb2#
        • 2.Qa7#
      • 1...Bg5
        • 2.Qa6#
        • 2.Qa8#
        • 2.Qb2#
        • 2.Qa7#
      • 1...Bh6
        • 2.Qa6#
        • 2.Qa8#
        • 2.Qb2#
        • 2.Qa7#

Anticipated by 189963(1913)



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).