Problem Display
PID: 252731 (7r/7P/8/8/8/2P3R1/2K5/k7 w - - 0 1)

Langberg, Carl

Schackvarlden, 1941

7r/7P/8/8/8/2P3R1/2K5/k7

#3

4 + 2


6490 yacpdb 2021

SOLUTION


  • SOUND
  • Sets
    • 1...Rg8
      • 2.Rxg8
        • 2...Ka2
          • 3.Ra8#
      • 2.hxg8R
        • 2...Ka2
          • 3.Ra8#
  • Tries
    • 1.Kb3?
      • threat
        • 2.Rg1#
      • 1...Rd8
        • 2.Rg1+
          • 2...Rd1
            • 3.Rxd1#
      • 1...Re8
        • 2.Rg1+
          • 2...Re1
            • 3.Rxe1#
      • 1...Rf8
        • 2.Rg1+
          • 2...Rf1
            • 3.Rxf1#
      • 1...Rg8
        • 2.Rxg8
          • 2...Kb1
            • 3.Rg1#
        • 2.hxg8Q
          • 2...Kb1
            • 3.Rg1#
        • 2.hxg8S
          • 2...Kb1
            • 3.Rg1#
        • 2.hxg8B
          • 2...Kb1
            • 3.Rg1#
        • 2.hxg8R
          • 2...Kb1
            • 3.Rg1#
      • 1...Rb8+!
    • 1.Rg4?
      • threat
        • 2.Ra4#
      • 1...Ka2
        • 2.Ra4#
      • 1...Ra8!
    • 1.Rg5?
      • threat
        • 2.Ra5#
      • 1...Ka2
        • 2.Ra5#
      • 1...Ra8!
    • 1.Rg6?
      • threat
        • 2.Ra6#
      • 1...Ka2
        • 2.Ra6#
      • 1...Ra8!
    • 1.Rg7?
      • threat
        • 2.Ra7#
      • 1...Rxh7
        • 2.Rxh7
          • 2...Ka2
            • 3.Ra7#
      • 1...Ra8!
    • 1.c4?
      • threat
        • 2.Ra3#
      • 1...Ra8
        • 2.h8Q+
          • 2...Ka2
            • 3.Qb2#
            • 3.Qxa8#
          • 2...Rxh8
            • 3.Ra3#
      • 1...Ka2!
  • Keys
    • 1.Rg8!
      • threat
        • 2.Rxh8
          • 2...Ka2
            • 3.Ra8#
      • 1...Ka2
        • 2.Rxh8
          • threat
            • 3.Ra8#
          • 2...Ka1
            • 3.Ra8#
          • 2...Ka3
            • 3.Ra8#
      • 1...Rxh7
        • 2.Ra8+
          • 2...Ra7
            • 3.Rxa7#
      • 1...Rxg8
        • 2.hxg8R
          • 2...Ka2
            • 3.Ra8#

FEATURES


NOT CLASSIFIED


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).