Problem Display
PID: 34995 (k7/1R2p1q1/1K1pp3/1pp1r3/4r3/8/1Q6/8 w - - 0 1)

Johandl, Alois

1st Prize, Deutsche Schachblatter, 1969-1970

k7/1R2p1q1/1K1pp3/1pp1r3/4r3/8/1Q6/8

#4

3 + 9


3751 FIDE Album (1968-1970) 1977
14730 Problempalette II (Chlubna/Wenda) 1991
4640 Chess Wizardry: The New ABC of Chess Problems 1996
4647 Dreiklang 2001

SOLUTION


  • SOUND
  • Keys
    • 1.Rd7!
      • threat
        • 2.Rd8#
      • 1...Qf8
        • 2.Qa3+
          • 2...Kb8
            • 3.Rb7+
              • 3...Kc8
                • 4.Qa8#
            • 3.Qa7+
              • 3...Kc8
                • 4.Qb7#
                • 4.Qc7#
            • 3.Qa6
              • threat
                • 4.Qb7#
              • 3...Qd8+
                • 4.Rxd8#
              • 3...Qc8
                • 4.Qa7#
          • 2...Ra4
            • 3.Qf3+
              • 3...Kb8
                • 4.Qb7#
                • 4.Qxf8#
              • 3...Qxf3
                • 4.Rd8#
              • 3...Rae4
                • 4.Qxf8#
              • 3...Ree4
                • 4.Qxf8#
              • 3...Rd5
                • 4.Qxf8#
              • 3...d5
                • 4.Qxf8#
      • 1...Qh8
        • 2.Qa1+
          • 2...Kb8
            • 3.Rb7+
              • 3...Kc8
                • 4.Qa8#
            • 3.Qa7+
              • 3...Kc8
                • 4.Qb7#
                • 4.Qc7#
            • 3.Qa6
              • threat
                • 4.Qb7#
              • 3...Qd8+
                • 4.Rxd8#
              • 3...Qc8
                • 4.Qa7#
          • 2...Ra4
            • 3.Qh1+
              • 3...Kb8
                • 4.Qb7#
                • 4.Qxh8#
              • 3...Qxh1
                • 4.Rd8#
              • 3...Rae4
                • 4.Qxh8#
              • 3...Ree4
                • 4.Qxh8#
              • 3...Rd5
                • 4.Qxh8#
              • 3...d5
                • 4.Qxh8#
      • 1...Qg8
        • 2.Qa2+
          • 2...Kb8
            • 3.Rb7+
              • 3...Kc8
                • 4.Qa8#
            • 3.Qa7+
              • 3...Kc8
                • 4.Qb7#
                • 4.Qc7#
            • 3.Qa6
              • threat
                • 4.Qb7#
              • 3...Qd8+
                • 4.Rxd8#
              • 3...Qc8
                • 4.Qa7#
          • 2...Ra4
            • 3.Qg2+
              • 3...Kb8
                • 4.Qb7#
                • 4.Qxg8#
              • 3...Qxg2
                • 4.Rd8#
              • 3...Rae4
                • 4.Qxg8#
              • 3...Ree4
                • 4.Qxg8#
              • 3...Rd5
                • 4.Qxg8#
              • 3...d5
                • 4.Qxg8#

FEATURES


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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).