Problem Display
PID: 35176 (2N1r3/3Ppq2/2P2p2/3k1P2/P7/1N3pB1/KPP1Bp1n/Q5b1 w - - 0 1)

Khatyamov, Rachid Kabirovich

Rychkov, Vladimir Nikolaevich

Zheltonozhko, Vladimir Ivanovich

2nd Prize, Schach, 1989

2N1r3/3Ppq2/2P2p2/3k1P2/P7/1N3pB1/KPP1Bp1n/Q5b1

#4

12 + 9


SOLUTION


  • SOUND
  • Keys
    • 1.Qf1!
      • threat
        • 2.Bxf3+
          • 2...Sxf3
            • 3.Qb5+
              • 3...Ke4
                • 4.Qd3#
      • 1...Ke4
        • 2.Bd3+
          • 2...Kd5
            • 3.Be4+
              • 3...Kxe4
                • 4.Qd3#
      • 1...Kxc6
        • 2.Bb5+
          • 2...Kb7
            • 3.Bc6+
              • 3...Kxc6
                • 4.Qb5#
      • 1...Sxf1
        • 2.Bxf3+
          • 2...Kc4
            • 3.Sb6+
              • 3...Kb4
                • 4.c3#
      • 1...fxe2
        • 2.Qg2+
          • 2...Sf3
            • 3.Qxf3+
              • 3...Kc4
                • 4.Qe4#
      • 1...Qh5
        • 2.Qd1+
          • 2...Kxc6
            • 3.Bb5+
              • 3...Kb7
                • 4.Qd5#

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).