Problem Display
PID: 272012 (K7/7B/2P1b1N1/1Q3n2/p1RpP1p1/3k4/pR3P1r/6n1 w - - 0 1)

Makaronets, Leonid

Volchek, Viktor Fedorovich

Pat a Mat, 2021

K7/7B/2P1b1N1/1Q3n2/p1RpP1p1/3k4/pR3P1r/6n1

#4

9 + 9


6490 yacpdb 2023

SOLUTION


  • COOKED
  • Keys
    • 1.Rbc2!
      • threat
        • 2.R4c3+
          • 2...Kxe4
            • 3.Qe5#
      • 1...Kxe4
        • 2.R2c3
          • threat
            • 3.Qe5#
          • 2...Bd5
            • 3.Rxd4+
              • 3...Kxd4
                • 4.Qd3#
              • 3...Sxd4
                • 4.Qd3#
          • 2...Sf3
            • 3.Rxd4+
              • 3...Kxd4
                • 4.Qd3#
              • 3...S3xd4
                • 4.Qe5#
              • 3...S5xd4
                • 4.Re3#
      • 1...Bxc4
        • 2.Qxc4+
          • 2...Kxe4
            • 3.Qe6+
              • 3...Kd3
                • 4.Qxf5#
              • 3...Kf3
                • 4.Qd5#
      • 1...Sf3
        • 2.Re2
          • threat
            • 3.Sf4#
          • 2...Kxe2
            • 3.Rc2+
              • 3...Kd1
                • 4.Qe2#
              • 3...Ke1
                • 4.Qe2#
          • 2...Bxc4
            • 3.Sf4+
              • 3...Kc3
                • 4.Qb2#
    • 1.Rc1+!
      • 1...Kxe4
        • 2.Qe5+
          • 2...Kf3
            • 3.Rxg1
              • threat
                • 4.Qf4#
                • 4.Qe2#
      • 1...Bc4
        • 2.Sf4+
          • 2...Kxe4
            • 3.Qxf5+
              • 3...Kf3
                • 4.Qe4#
        • 2.Qxc4+
          • 2...Kxe4
            • 3.Qe6+
              • 3...Kd3
                • 4.Sf4#
                • 4.Qxf5#
              • 3...Kf3
                • 4.Qd5#
        • 2.Qxf5
          • threat
            • 3.Sf4#
            • 3.Se5#
            • 3.e5#
          • 2...Rxf2
            • 3.Se5+
              • 3...Ke3
                • 4.Qxf2#

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).