MESON Chess Problem Database

Problem Display
PID: 126991 (5R2/3P4/8/3Pk3/4N3/4K3/8/8 w - - 0 1)

Onitiu, Valerian

Die Schwalbe, 1939

5R2/3P4/8/3Pk3/4N3/4K3/8/8

#3

5 + 1

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sc5?
      • 1...Kd6
        • 2.Kd4
          • threat
            • 3.d8Q#
          • 2...Kc7
            • 3.d8Q#
          • 2...Ke7
            • 3.d8Q#
      • 1...Kxd5!
    • 1.Ra8?
      • threat
        • 2.d8Q
          • 2...Kf5
            • 3.Qg5#
      • 1...Kf5
        • 2.Rg8
          • 2...Ke5
            • 3.Rg5#
      • 1...Kxd5!
    • 1.Rb8?
      • threat
        • 2.d8Q
          • 2...Kf5
            • 3.Qg5#
      • 1...Kf5
        • 2.Rg8
          • 2...Ke5
            • 3.Rg5#
      • 1...Kxd5!
    • 1.Rd8?
      • 1...Kf5
        • 2.Rg8
          • 2...Ke5
            • 3.Rg5#
      • 1...Kxd5!
    • 1.Re8+?
      • 1...Kf5
        • 2.Rg8
          • 2...Ke5
            • 3.Rg5#
      • 1...Kxd5!
    • 1.Rg8?
      • threat
        • 2.Rg5#
      • 1...Kf5
        • 2.Rg5#
      • 1...Kxd5!
    • 1.Rh8?
      • threat
        • 2.Rh5#
      • 1...Kf5
        • 2.Rg8
          • 2...Ke5
            • 3.Rg5#
        • 2.d8Q
          • threat
            • 3.Qg5#
          • 2...Kg4
            • 3.Qg5#
            • 3.Qd7#
            • 3.Qc8#
          • 2...Ke5
            • 3.Rh5#
            • 3.Qg5#
          • 2...Kg6
            • 3.Qf6#
      • 1...Kxd5!
  • Keys
    • 1.Rc8!
      • threat
        • 2.d8Q
          • 2...Kf5
            • 3.Qg5#
      • 1...Kxd5
        • 2.d8S
          • 2...Ke5
            • 3.Rc5#
      • 1...Kf5
        • 2.Rg8
          • 2...Ke5
            • 3.Rg5#

FEATURES

NOT CLASSIFIED
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).