Problem Display
PID: 88061 (bnr4b/2pp1B1K/6pp/1R2r3/kP6/3Q4/8/8 w - - 0 1)

Pachman, Vladimir

2nd Prize, Buletin Problemistic, 1973

bnr4b/2pp1B1K/6pp/1R2r3/kP6/3Q4/8/8

#4

5 + 10


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Keys
    • 1.Qc4!
      • threat
        • 2.Ra5+
          • 2...Rxa5
            • 3.b5+
              • 3...Ka3
                • 4.Qb3#
      • 1...Rd5
        • 2.Ra5+
          • 2...Rxa5
            • 3.b5+
              • 3...Ka3
                • 4.Qb3#
        • 2.Bxd5
          • threat
            • 3.Ra5#
          • 2...Sc6
            • 3.Rc5
              • threat
                • 4.Qb3#
              • 3...Ka3
                • 4.Qb3#
              • 3...Sd4
                • 4.Ra5#
              • 3...Sa5
                • 4.Rxa5#
      • 1...Rf5
        • 2.Ra5+
          • 2...Rxa5
            • 3.b5+
              • 3...Ka3
                • 4.Qb3#
      • 1...Rg5
        • 2.Ra5+
          • 2...Rxa5
            • 3.b5+
              • 3...Ka3
                • 4.Qb3#
      • 1...Rh5
        • 2.Ra5+
          • 2...Rxa5
            • 3.b5+
              • 3...Ka3
                • 4.Qb3#
      • 1...Sa6
        • 2.Qa2+
          • 2...Kxb5
            • 3.Qa5+
              • 3...Kc6
                • 4.Qxa6#
      • 1...Sc6
        • 2.Rb6
          • threat
            • 3.Qa2#
            • 3.Qb3#
          • 2...cxb6
            • 3.Qb3+
              • 3...Kb5
                • 4.Bc4#
          • 2...Re3
            • 3.Ra6+
              • 3...Sa5
                • 4.Rxa5#
            • 3.Qa2+
              • 3...Ra3
                • 4.Bb3#
            • 3.Qa6+
              • 3...Sa5
                • 4.Qxa5#
            • 3.Qc2+
              • 3...Ka3
                • 4.Qa2#
              • 3...Rb3
                • 4.Qxb3#

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).