MESON Chess Problem Database

Problem Display
PID: 83394 (kB5K/2Q5/4p3/3p3p/r7/8/1P6/5b2 w - - 0 1)

Havel, Miroslav

Sach, 1942

kB5K/2Q5/4p3/3p3p/r7/8/1P6/5b2

#5

4 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Keys
    • 1.b3!
      • threat
        • 2.bxa4
          • threat
            • 3.Qa7#
      • 1...Ra3
        • 2.b4
          • threat
            • 3.Ba7
              • threat
                • 4.Qb8#
              • 3...Rxa7
                • 4.Qc8#
          • 2...Ra4
            • 3.b5
              • threat
                • 4.Ba7
                  • threat
                    • 5.Qb8#
                  • 4...Rxa7
                    • 5.Qc8#
                • 4.b6
                  • threat
                    • 5.b7#
                  • 4...Rb4
                    • 5.Qa7#
                  • 4...Ra7
                    • 5.Qxa7#
                  • 4...Ba6
                    • 5.Qa7#
              • 3...Ra1
                • 4.Ba7
                  • threat
                    • 5.Qb8#
                  • 4...Rxa7
                    • 5.Qc8#
                • 4.b6
                  • threat
                    • 5.b7#
                  • 4...Rb1
                    • 5.Qa7#
                  • 4...Ra7
                    • 5.Qxa7#
                  • 4...Ba6
                    • 5.Qa7#
              • 3...Ra2
                • 4.Ba7
                  • threat
                    • 5.Qb8#
                  • 4...Rxa7
                    • 5.Qc8#
                • 4.b6
                  • threat
                    • 5.b7#
                  • 4...Rb2
                    • 5.Qa7#
                  • 4...Ra7
                    • 5.Qxa7#
                  • 4...Ba6
                    • 5.Qa7#
              • 3...Ra3
                • 4.Ba7
                  • threat
                    • 5.Qb8#
                  • 4...Rxa7
                    • 5.Qc8#
                • 4.b6
                  • threat
                    • 5.b7#
                  • 4...Rb3
                    • 5.Qa7#
                  • 4...Ra7
                    • 5.Qxa7#
                  • 4...Ba6
                    • 5.Qa7#
              • 3...Ra5
                • 4.b6
                  • threat
                    • 5.b7#
                  • 4...Rb5
                    • 5.Qa7#
                  • 4...Ra7
                    • 5.Qxa7#
                  • 4...Ba6
                    • 5.Qa7#
              • 3...Ra6
                • 4.bxa6
                  • threat
                    • 5.Qa7#
                    • 5.Qb7#
                • 4.b6
                  • threat
                    • 5.b7#
                  • 4...Rxb6
                    • 5.Qa7#
                  • 4...Ra7
                    • 5.Qxa7#
          • 2...Ra6
            • 3.Ba7
              • threat
                • 4.Qb8#
              • 3...Rb6
                • 4.Bxb6
                  • threat
                    • 5.Qa7#
                    • 5.Qc8#
                • 4.Qxb6
                  • threat
                    • 5.Qb8#
      • 1...Ra5
        • 2.b4
          • threat
            • 3.bxa5
              • threat
                • 4.Qa7#
          • 2...Ra4
            • 3.b5
              • threat
                • 4.Ba7
                  • threat
                    • 5.Qb8#
                  • 4...Rxa7
                    • 5.Qc8#
                • 4.b6
                  • threat
                    • 5.b7#
                  • 4...Rb4
                    • 5.Qa7#
                  • 4...Ra7
                    • 5.Qxa7#
                  • 4...Ba6
                    • 5.Qa7#
              • 3...Ra1
                • 4.Ba7
                  • threat
                    • 5.Qb8#
                  • 4...Rxa7
                    • 5.Qc8#
                • 4.b6
                  • threat
                    • 5.b7#
                  • 4...Rb1
                    • 5.Qa7#
                  • 4...Ra7
                    • 5.Qxa7#
                  • 4...Ba6
                    • 5.Qa7#
              • 3...Ra2
                • 4.Ba7
                  • threat
                    • 5.Qb8#
                  • 4...Rxa7
                    • 5.Qc8#
                • 4.b6
                  • threat
                    • 5.b7#
                  • 4...Rb2
                    • 5.Qa7#
                  • 4...Ra7
                    • 5.Qxa7#
                  • 4...Ba6
                    • 5.Qa7#
              • 3...Ra3
                • 4.Ba7
                  • threat
                    • 5.Qb8#
                  • 4...Rxa7
                    • 5.Qc8#
                • 4.b6
                  • threat
                    • 5.b7#
                  • 4...Rb3
                    • 5.Qa7#
                  • 4...Ra7
                    • 5.Qxa7#
                  • 4...Ba6
                    • 5.Qa7#
              • 3...Ra5
                • 4.b6
                  • threat
                    • 5.b7#
                  • 4...Rb5
                    • 5.Qa7#
                  • 4...Ra7
                    • 5.Qxa7#
                  • 4...Ba6
                    • 5.Qa7#
              • 3...Ra6
                • 4.bxa6
                  • threat
                    • 5.Qa7#
                    • 5.Qb7#
                • 4.b6
                  • threat
                    • 5.b7#
                  • 4...Rxb6
                    • 5.Qa7#
                  • 4...Ra7
                    • 5.Qxa7#
          • 2...Ra6
            • 3.Ba7
              • threat
                • 4.Qb8#
              • 3...Rb6
                • 4.Bxb6
                  • threat
                    • 5.Qa7#
                    • 5.Qc8#
                • 4.Qxb6
                  • threat
                    • 5.Qb8#

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).