Problem Display
PID: 41413 (8/4R3/8/3k2N1/P5P1/8/K4Q2/8 w - - 0 1)

Bonivento, Oscar

La Settimana Enigmistica, 1935

8/4R3/8/3k2N1/P5P1/8/K4Q2/8

#2

6 + 1


4436 Problemi Opera omnia 2001
5454 Near Snap 2007
  • SOUND
  • Tries
    • 1.Se4?
      • threat
        • 2.Qc5#
      • 1...Kc6
        • 2.Qc5#
      • 1...Kc4!
    • 1.Rc7?
      • threat
        • 2.Qc5#
      • 1...Kd6
        • 2.Qc5#
      • 1...Ke5!
    • 1.Rd7+?
      • 1...Kc4
        • 2.Qd4#
      • 1...Ke5
        • 2.Qd4#
        • 2.Qf5#
      • 1...Kc6!
  • Keys
    • 1.Se6!
      • 1...Kc4
        • 2.Qd4#
      • 1...Ke4
        • 2.Sf4#
      • 1...Ke5
        • 2.Qd4#
      • 1...Kc6
        • 2.Qc5#
      • 1...Kd6
        • 2.Qc5#

Anticipated by 6621(1932)

This anticipates 197826(1944), 12216(1976)



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).