Problem Display
PID: 269411 (3r4/3r2b1/B2pNPKn/1p1RP3/1BPpk1p1/4p2p/PP5p/nb1Q4 w - - 0 1)

Lyubashevsky, Leonid Abramovic

Makaronets, Leonid

The Problemist, 2022

3r4/3r2b1/B2pNPKn/1p1RP3/1BPpk1p1/4p2p/PP5p/nb1Q4

#4

11 + 14


SOLUTION


  • SOUND
  • Keys
    • 1.Bc3!
      • threat
        • 2.Rxd4+
          • 2...Kxe5+
            • 3.Re4+
              • 3...Kxe4
                • 4.Qd5#
      • 1...Bxa2
        • 2.Sg5+
          • 2...Kf4
            • 3.Qf1+
              • 3...Kg3
                • 4.Be1#
        • 2.Rxd4+
          • 2...Kxe5
            • 3.Re4+
              • 3...Kxe4
                • 4.Qd5#
            • 3.Rf4+
              • 3...Kxe6
                • 4.Re4#
                • 4.Qd5#
            • 3.Rxg4+
              • 3...Kxe6
                • 4.Re4#
                • 4.Qd5#
            • 3.Rxd6+
              • 3...Ke4
                • 4.Qh1#
                • 4.Qd5#
      • 1...bxc4
        • 2.Bxc4
          • threat
            • 3.Qh1#
          • 2...g3
            • 3.Qf1
              • threat
                • 4.Sg5#
                • 4.Qf4#
      • 1...dxe5
        • 2.Qf1
          • threat
            • 3.Sc5#
            • 3.Sg5#
          • 2...bxc4
            • 3.Bxc4
              • threat
                • 4.Sc5#
                • 4.Sg5#
                • 4.Qh1#
              • 3...e2
                • 4.Qxe2#
      • 1...Sc2
        • 2.Qh1+
          • 2...Kd3
            • 3.Sf4+
              • 3...Kxc4
                • 4.Bxb5#
      • 1...Sb3
        • 2.Qxb1+
          • 2...Kf3
            • 3.Qf1+
              • 3...Kg3
                • 4.Be1#
              • 3...Ke4
                • 4.Sg5#
      • 1...Sf5
        • 2.Sg5+
          • 2...Kf4
            • 3.Qf1+
              • 3...Kg3
                • 4.Be1#

FEATURES


NOT CLASSIFIED


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).