Problem Display
PID: 26712 (2Q4K/4b1p1/1B1pN3/3k1b2/3Ppp2/1pPpp2n/1np5/2r2q2 w - - 0 1)

Pachman, Vladimir

4th HM., Source?, 1956

2Q4K/4b1p1/1B1pN3/3k1b2/3Ppp2/1pPpp2n/1np5/2r2q2

#4

6 + 15


SOLUTION


  • COOKED
  • Keys
    • 1.Sc7+!
      • 1...Kc4
        • 2.Qb7
          • threat
            • 3.Qc6#
          • 2...Kxc3
            • 3.Ba5+
              • 3...Kc4
                • 4.Qd5#
                • 4.Qb4#
              • 3...Kxd4
                • 4.Qd5#
          • 2...d2
            • 3.Qa6+
              • 3...Kxc3
                • 4.Sd5#
          • 2...Bd7
            • 3.Qd5+
              • 3...Kxc3
                • 4.Ba5#
          • 2...Sa4
            • 3.Ba5
              • threat
                • 4.Qd5#
                • 4.Qa6#
                • 4.Qb4#
                • 4.Qb5#
          • 2...d5
            • 3.Qc6+
              • 3...Bc5
                • 4.Qxc5#
            • 3.Ba5
              • threat
                • 4.Qxd5#
                • 4.Qa6#
                • 4.Qb5#
              • 3...Bb4
                • 4.Qxb4#
      • 1...Kc6
        • 2.d5+
          • 2...Kxb6
            • 3.Qb8+
              • 3...Ka5
                • 4.Qa7#
                • 4.Qb4#
                • 4.Qb5#
              • 3...Kc5
                • 4.Qb4#
                • 4.Qb5#
    • 1.Ba7!
      • threat
        • 2.c4+
          • 2...Sxc4
            • 3.Sc7+
              • 3...Kc6
                • 4.d5#
      • 1...Bd8
        • 2.Qb7+
          • 2...Kxe6
            • 3.d5+
              • 3...Ke5
                • 4.Bd4#
              • 3...Kf6
                • 4.Qxg7#
      • 1...d2
        • 2.Sc7+
          • 2...Kc4
            • 3.Qa6+
              • 3...Kxc3
                • 4.Sd5#

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).