Problem Display
PID: 65251 (8/4p3/1p2P3/pP6/1pP1kNK1/1P6/P1Pp4/Q2Nb3 w - - 0 1)

Marker, Yuri

1st Prize, Neue Zurcher Zeitung, 2002-2003

8/4p3/1p2P3/pP6/1pP1kNK1/1P6/P1Pp4/Q2Nb3

#3

10 + 7


145 StrateGems 2006
56 The Problemist 2006
15174 FIDE Album (2001-2003) 2011

SOLUTION


  • SOUND
  • Tries
    • 1.Qc3?
      • threat
        • 2.Qe3#
      • 1...Bf2
        • 2.Sxf2#
      • 1...bxc3!
    • 1.Qf6?
      • threat
        • 2.Qg5
          • threat
            • 3.Qd5#
          • 2...Kd4
            • 3.Qd5#
        • 2.Qf5+
          • 2...Kd4
            • 3.Se2#
            • 3.Qd5#
      • 1...Bh4
        • 2.Qf5+
          • 2...Kd4
            • 3.Se2#
            • 3.Qd5#
      • 1...exf6!
  • Keys
    • 1.a4!
      • 1...bxa4 ep
        • 2.Qc3
          • threat
            • 3.Qe3#
          • 2...Bf2
            • 3.Sxf2#
      • 1...Bh4
        • 2.Sh3
          • 2...Be1
            • 3.Sg5#
          • 2...Bf2
            • 3.Shxf2#
            • 3.Sg5#
          • 2...Bg3
            • 3.Sg5#
          • 2...Bg5
            • 3.Shf2#
            • 3.Sxg5#
          • 2...Bf6
            • 3.Shf2#
      • 1...Bf2
        • 2.Se2
          • 2...Bd4
            • 3.Qxd4#
          • 2...Be1
            • 3.Qd4#
          • 2...Bg1
            • 3.Sg3#
          • 2...Be3
            • 3.Sg3#
          • 2...Bg3
            • 3.Sxg3#
            • 3.Qd4#
          • 2...Bh4
            • 3.Qd4#
          • 2...Bc5
            • 3.Sg3#
      • 1...Bg3
        • 2.Sd3
          • 2...Be1
            • 3.Qe5#
          • 2...Bf2
            • 3.S3xf2#
            • 3.Qe5#
          • 2...Bh2
            • 3.S3f2#
          • 2...Bf4
            • 3.S3f2#
          • 2...Bh4
            • 3.Qe5#
          • 2...Be5
            • 3.S3f2#
            • 3.Qxe5#
          • 2...Bd6
            • 3.S3f2#
          • 2...Bc7
            • 3.S3f2#
          • 2...Bb8
            • 3.S3f2#

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).