Problem Display
PID: 163212 (1b4K1/2p3np/p4p2/P1k5/2P2Q2/2P5/P5p1/3Rn1qr w - - 0 1)

Makaronets, Leonid

StrateGems, 2013

1b4K1/2p3np/p4p2/P1k5/2P2Q2/2P5/P5p1/3Rn1qr

#4

7 + 11


702 Phenix 2016

SOLUTION


  • SOUND
  • Keys
    • 1.Rd8!
      • threat
        • 2.Qd6+
          • 2...cxd6
            • 3.Rc8+
              • 3...Bc7
                • 4.Rxc7#
      • 1...Sc2
        • 2.Qd6+
          • 2...Kxc4
            • 3.Qd3+
              • 3...Kc5
                • 4.Qd5#
            • 3.Qd5+
              • 3...Kxc3
                • 4.Qb3#
          • 2...cxd6
            • 3.Rc8+
              • 3...Bc7
                • 4.Rxc7#
      • 1...Sd3
        • 2.Qd6+
          • 2...Kxc4
            • 3.Qxd3+
              • 3...Kc5
                • 4.Qd5#
          • 2...cxd6
            • 3.Rc8+
              • 3...Bc7
                • 4.Rxc7#
      • 1...Sf5
        • 2.Qxf5+
          • 2...Kxc4
            • 3.Qd5+
              • 3...Kxc3
                • 4.Qb3#
      • 1...Se6
        • 2.Qf5+
          • 2...Kxc4
            • 3.Qd5+
              • 3...Kxc3
                • 4.Qb3#
      • 1...Se8
        • 2.Qf5+
          • 2...Kxc4
            • 3.Qd5+
              • 3...Kxc3
                • 4.Qb3#
      • 1...c6
        • 2.Qxb8
          • threat
            • 3.Qb4#
          • 2...Sc2
            • 3.Rd5+
              • 3...Kxc4
                • 4.Qb3#
              • 3...cxd5
                • 4.Qc7#
          • 2...Sd3
            • 3.Rd5+
              • 3...Kxc4
                • 4.Qb3#
              • 3...cxd5
                • 4.Qc7#

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).