Problem Display
PID: 277842 (8/1p6/1P6/k7/P2Q1p2/4pP2/2p1P1p1/2B3Kb w - - 0 1)

Pypa, Volodimir Iosifovich

Buletin Problemistic, 1977

8/1p6/1P6/k7/P2Q1p2/4pP2/2p1P1p1/2B3Kb

#4

7 + 7


6490 yacpdb 2024

SOLUTION


  • COOKED
  • Keys
    • 1.Bb2!
      • threat
        • 2.Bc1
          • 2...Ka6
            • 3.Qb2
              • 3...Ka5
                • 4.Qb5#
      • 1...c1Q+
        • 2.Bxc1
          • 2...Ka6
            • 3.Qb2
              • 3...Ka5
                • 4.Qb5#
      • 1...c1R+
        • 2.Bxc1
          • 2...Ka6
            • 3.Qb2
              • 3...Ka5
                • 4.Qb5#
      • 1...Ka6
        • 2.Qc4+
          • 2...Kxb6
            • 3.Bd4+
              • 3...Ka5
                • 4.Qb5#
      • 1...c1S
        • 2.Bxc1
          • 2...Ka6
            • 3.Qb2
              • 3...Ka5
                • 4.Qb5#
      • 1...c1B
        • 2.Bc3+
          • 2...Ka6
            • 3.Qc5
              • threat
                • 4.Qa5#
                • 4.Qb5#
            • 3.Qb4
              • threat
                • 4.Qa5#
                • 4.Qb5#
        • 2.Bxc1
          • 2...Ka6
            • 3.Qb2
              • 3...Ka5
                • 4.Qb5#
        • 2.Qc4
          • threat
            • 3.Qb5#
          • 2...Kxb6
            • 3.Bd4+
              • 3...Ka5
                • 4.Qb5#
        • 2.Qd7
          • threat
            • 3.Qb5#
          • 2...Kxb6
            • 3.Bd4+
              • 3...Ka5
                • 4.Qb5#
              • 3...Ka6
                • 4.Qb5#
    • 1.Qd6!
      • threat
        • 2.Qd4
          • 2...Ka6
            • 3.Qb2
              • 3...Ka5
                • 4.Qb5#
      • 1...Kxa4
        • 2.Qc5
          • 2...Kb3
            • 3.Qd4
              • 3...Ka2
                • 4.Qb2#
      • 1...Ka6
        • 2.Qe6
          • 2...Ka5
            • 3.Qb3
              • 3...Ka6
                • 4.Qb5#

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).