Problem Display
PID: 28853 (3NRbbq/n4rp1/R2pN1Pp/rn1k1p2/PB1p1P1P/1Pp4K/8/1B6 w - - 0 1)

Gamza, Grigory Stepanovich

Larin, Rudolf Mikhailovich

StrateGems, 2001

3NRbbq/n4rp1/R2pN1Pp/rn1k1p2/PB1p1P1P/1Pp4K/8/1B6

#4

12 + 14


145 StrateGems 2002

SOLUTION


  • SOUND
  • Keys
    • 1.Bd3!
      • threat
        • 2.Be2
          • threat
            • 3.Bf3#
          • 2...Ke4
            • 3.Sc5+
              • 3...Kxf4
                • 4.Sd3#
              • 3...Kd5
                • 4.Bf3#
                • 4.Bc4#
      • 1...Re7
        • 2.Rxd6+
          • 2...Sxd6
            • 3.Sc7+
              • 3...Rxc7
                • 4.Re5#
      • 1...Be7
        • 2.Sc7+
          • 2...Sxc7
            • 3.Rxd6+
              • 3...Bxd6
                • 4.Bc4#
      • 1...Sa3
        • 2.Rxa5+
          • 2...S3b5
            • 3.gxf7
              • threat
                • 4.Sc7#
          • 2...S7b5
            • 3.gxf7
              • threat
                • 4.Sc7#
        • 2.Be2
          • threat
            • 3.Bf3#
          • 2...Ke4
            • 3.Sc5+
              • 3...Kxf4
                • 4.Sd3#
              • 3...Kd5
                • 4.Bf3#
        • 2.Re7
          • threat
            • 3.Sc7#
            • 3.Rxd6#
          • 2...Rc5
            • 3.Sc7+
              • 3...Rxc7
                • 4.Rxd6#
          • 2...S3b5
            • 3.Sc7+
              • 3...Sxc7
                • 4.Bc4#
                • 4.Rxd6#
            • 3.Rxd6+
              • 3...Sxd6
                • 4.Sc7#
            • 3.Sg5
              • threat
                • 4.Bc4#
              • 3...Sa3
                • 4.Rxd6#
          • 2...S7b5
            • 3.Sc7+
              • 3...Sxc7
                • 4.Rxd6#
            • 3.Rxd6+
              • 3...Sxd6
                • 4.Sc7#
      • 1...c2
        • 2.Bc4+
          • 2...Ke4
            • 3.Sg5+
              • 3...Kxf4
                • 4.Bd2#

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).