Problem Display
PID: 267310 (6bR/b3pN2/5p2/1Kp2p1B/1pp1P1r1/1pk1P2n/5pN1/1QB5 w - - 0 1)

Tyunin, Aleksandr Dmitrevich

Zadachi i Etyudi, 2012

6bR/b3pN2/5p2/1Kp2p1B/1pp1P1r1/1pk1P2n/5pN1/1QB5

#4

9 + 13


SOLUTION


  • SOUND
  • Keys
    • 1.Kc6!
      • threat
        • 2.Qb2+
          • 2...Kd3
            • 3.Qd2+
              • 3...Kxe4
                • 4.Qd5#
      • 1...Bxf7
        • 2.Rd8
          • threat
            • 3.Bb2#
            • 3.Bd2#
            • 3.Qb2#
          • 2...Bd5+
            • 3.Rxd5
              • threat
                • 4.Bb2#
                • 4.Bd2#
                • 4.Qb2#
              • 3...b2
                • 4.Qxb2#
          • 2...Be8+
            • 3.Bxe8
              • threat
                • 4.Bb2#
                • 4.Bd2#
                • 4.Qb2#
              • 3...b2
                • 4.Qxb2#
      • 1...b2
        • 2.Qxb2+
          • 2...Kd3
            • 3.Qd2+
              • 3...Kxe4
                • 4.Qd5#
      • 1...f1S
        • 2.Qb2+
          • 2...Kd3
            • 3.Se1+
              • 3...Kxe4
                • 4.Qb1#
      • 1...Sf4
        • 2.Sxf4
          • threat
            • 3.Se2#
            • 3.Sd5#
            • 3.Qb2#
          • 2...Rxf4
            • 3.Be2
              • threat
                • 4.Qb2#
              • 3...b2
                • 4.Qxb2#
      • 1...e6
        • 2.Sd6
          • threat
            • 3.Sb5#
          • 2...b2
            • 3.Qxb2+
              • 3...Kd3
                • 4.Qd2#

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).