Problem Display
PID: 4328 (6Q1/p7/8/8/2Np4/1Kp2Pp1/4k1B1/8 w - - 0 1)

Portilla, Vincente Maria Norberto

Source?, 0000

6Q1/p7/8/8/2Np4/1Kp2Pp1/4k1B1/8

#3

5 + 5


3498 Chess Problems by V. M. N. Portilla 1873

SOLUTION


  • SOUND
  • Sets
    • 1...Kd3
      • 2.Bf1#
  • Keys
    • 1.Qh7!
      • threat
        • 2.Qb1
          • threat
            • 3.Qf1#
          • 2...Kf2
            • 3.Qf1#
        • 2.Qd3+
          • 2...Ke1
            • 3.Qf1#
          • 2...Kf2
            • 3.Qf1#
          • 2...Kxd3
            • 3.Bf1#
        • 2.Qh1
          • threat
            • 3.Qf1#
          • 2...Kf2
            • 3.Qf1#
          • 2...Kd3
            • 3.Bf1#
            • 3.Qd1#
            • 3.Qf1#
      • 1...Kd1
        • 2.Qb1+
          • 2...Ke2
            • 3.Qf1#
        • 2.Qd3+
          • 2...Kc1
            • 3.Qf1#
            • 3.Qc2#
          • 2...Ke1
            • 3.Qf1#
        • 2.Qh1+
          • 2...Ke2
            • 3.Qf1#
      • 1...Ke1
        • 2.Qb1+
          • 2...Ke2
            • 3.Qf1#
          • 2...Kf2
            • 3.Qf1#
        • 2.Qd3
          • threat
            • 3.Qf1#
          • 2...Kf2
            • 3.Qf1#
        • 2.Qh1+
          • 2...Ke2
            • 3.Qf1#
          • 2...Kf2
            • 3.Qf1#
      • 1...Kf2
        • 2.Qh1
          • threat
            • 3.Qf1#
          • 2...Ke2
            • 3.Qf1#
      • 1...c2
        • 2.Qxc2+
          • 2...Ke1
            • 3.Qd2#
        • 2.Qd3+
          • 2...Ke1
            • 3.Qf1#
            • 3.Qd2#
          • 2...Kf2
            • 3.Qf1#
          • 2...Kxd3
            • 3.Bf1#
      • 1...d3
        • 2.Qh1
          • threat
            • 3.Qf1#
          • 2...Kf2
            • 3.Qf1#
      • 1...a5
        • 2.Qd3+
          • 2...Ke1
            • 3.Qf1#
          • 2...Kf2
            • 3.Qf1#
          • 2...Kxd3
            • 3.Bf1#

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).