Problem Display
PID: 173547 (R3Q2B/1B1pnpr1/3pk2N/2p1b1Rn/p3Nrpq/K1p2P2/5p2/8 w - - 0 1)

Alaikov, Venelin

1st Prize, Wiesbadener Schachverein-100 JT, 1985

R3Q2B/1B1pnpr1/3pk2N/2p1b1Rn/p3Nrpq/K1p2P2/5p2/8

#3

9 + 15


6490 yacpdb 2018

SOLUTION


  • SOUND
  • Sets
    • 1...Rf6
      • 2.Rd8
        • threat
          • 3.Qxd7#
    • 1...Rg6
      • 2.Rd8
        • threat
          • 3.Qxd7#
        • 2...Sf6
          • 3.Qxf7#
    • 1...Bd4
      • 2.Bd5#
    • 1...Bf6
      • 2.Bd5#
    • 1...d5
      • 2.Ra6+
        • 2...Bd6
          • 3.Bxd5#
          • 3.Rxd6#
        • 2...d6
          • 3.Bc8#
      • 2.Qxe7+
        • 2...Kxe7
          • 3.Rxe5#
    • 1...f6
      • 2.Rxg7
        • threat
          • 3.Rxe7#
          • 3.Qf7#
          • 3.Qxe7#
      • 2.Rd8
        • threat
          • 3.Qxd7#
  • Tries
    • 1.Rxe5+?
      • 1...dxe5
        • 2.Ra6+
          • 2...d6
            • 3.Rxd6#
      • 1...Kxe5!
    • 1.Rd8?
      • threat
        • 2.Qxd7#
      • 1...Rxe4
        • 2.Bxg7
          • threat
            • 3.Qxd7#
            • 3.Qxf7#
      • 1...Sf6!
  • Keys
    • 1.Ra6!
      • threat
        • 2.Rxd6+
          • 2...Bxd6
            • 3.Bd5#
      • 1...Qxg5
        • 2.Sxc5+
          • 2...Kf6
            • 3.Qxf7#
      • 1...Rxe4
        • 2.Bxg7
          • threat
            • 3.Qxf7#
          • 2...Rf4
            • 3.Rxe5#
          • 2...f5
            • 3.Qf7#
          • 2...f6
            • 3.Qf7#
      • 1...Rf5
        • 2.Rxf5
          • threat
            • 3.Sxc5#
          • 2...Bd4
            • 3.Bd5#
            • 3.Rxd6#
          • 2...c4
            • 3.Sc5#
      • 1...c4
        • 2.Bd5+
          • 2...Kxd5
            • 3.Rxd6#
      • 1...f5
        • 2.Qf7+
          • 2...Rxf7
            • 3.Sxc5#

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).