Problem Display
PID: 183106 (8/2b5/8/8/k1K1Q3/8/8/8 w - - 0 1)

Blumenthal, Oscar

Schweizerische Schachzeitung, 1907

8/2b5/8/8/k1K1Q3/8/8/8

#2

2 + 2


5454 Near Snap 2018
6490 yacpdb 2018
  • SOUND
  • Sets
    • 1...Bh2
      • 2.Qa8#
    • 1...Bg3
      • 2.Qa8#
    • 1...Bf4
      • 2.Qa8#
    • 1...Be5
      • 2.Qa8#
    • 1...Bd6
      • 2.Qa8#
  • Tries
    • 1.Qb1?
      • threat
        • 2.Qa2#
        • 2.Qa1#
        • 2.Qb4#
      • 1...Ka3
        • 2.Qa1#
        • 2.Qb3#
      • 1...Ka5
        • 2.Qb5#
      • 1...Ba5
        • 2.Qa2#
        • 2.Qa1#
        • 2.Qb3#
      • 1...Be5
        • 2.Qa2#
        • 2.Qb4#
      • 1...Bd6!
    • 1.Qh1?
      • threat
        • 2.Qa1#
      • 1...Ka3
        • 2.Qa1#
      • 1...Be5
        • 2.Qa8#
      • 1...Bd6
        • 2.Qa8#
      • 1...Ka5!
    • 1.Qc2+?
      • 1...Ka3
        • 2.Qb3#
      • 1...Ka5!
    • 1.Qc6+?
      • 1...Ka5
        • 2.Qb5#
      • 1...Ka3!
    • 1.Qb7?
      • threat
        • 2.Qb4#
      • 1...Ka3
        • 2.Qb3#
      • 1...Ka5
        • 2.Qb5#
        • 2.Qa7#
      • 1...Ba5
        • 2.Qb3#
      • 1...Bd6
        • 2.Qa6#
        • 2.Qa8#
        • 2.Qa7#
      • 1...Bb6!
    • 1.Qe1?
      • threat
        • 2.Qb4#
        • 2.Qa1#
      • 1...Ka3
        • 2.Qa1#
      • 1...Ba5
        • 2.Qa1#
      • 1...Be5
        • 2.Qb4#
      • 1...Bd6!
    • 1.Qe8+?
      • 1...Ka5
        • 2.Qb5#
      • 1...Ka3!
  • Keys
    • 1.Qd4!
      • threat
        • 2.Qa1#
      • 1...Ka3
        • 2.Qa1#
      • 1...Ka5
        • 2.Qa7#
      • 1...Be5
        • 2.Qa7#
      • 1...Bd6
        • 2.Qa7#

Anticipated by 110515(1870)

This anticipates 193729(1916), 166257(1917), 169981(2017)



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).