Problem Display
PID: 13311 (1n4K1/2b5/5Q2/2p5/1p2k3/6p1/1N2PP2/5n2 w - - 0 1)

Tolosa y Carreras, Jose

Ruy Lopez, 1898

1n4K1/2b5/5Q2/2p5/1p2k3/6p1/1N2PP2/5n2

#3

5 + 7


SOLUTION


  • SOUND
  • Sets
    • 1...Be5
      • 2.Qf3+
        • 2...Kd4
          • 3.Qd3#
  • Tries
    • 1.Qf3+?
      • 1...Ke5
        • 2.Sc4+
          • 2...Kd4
            • 3.Qd3#
          • 2...Ke6
            • 3.Qf7#
      • 1...Kd4!
    • 1.Qf5+?
      • 1...Kd4
        • 2.Sc4
          • threat
            • 3.Qd3#
          • 2...Kc3
            • 3.Qd3#
          • 2...Kxc4
            • 3.Qd3#
      • 1...Kxf5!
    • 1.f3+?
      • 1...Kd5
        • 2.e4#
      • 1...Ke3!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Qf3+
          • 2...Kd4
            • 3.Qd3#
      • 1...Kd5
        • 2.Qf3+
          • 2...Kxc4
            • 3.Qd3#
          • 2...Kd4
            • 3.Qd3#
          • 2...Ke6
            • 3.Qf7#
      • 1...Bf4
        • 2.f3+
          • 2...Kd5
            • 3.Sb6#
      • 1...Sd2
        • 2.Sxd2+
          • 2...Kd5
            • 3.e4#
      • 1...Sh2
        • 2.Sd2+
          • 2...Kd5
            • 3.e4#
      • 1...Se3
        • 2.f3+
          • 2...Kd5
            • 3.Sxe3#

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).