Problem Display
PID: 166232 (R2n3r/3Pp1pp/4P2b/1pN3kr/3P3p/2PB3P/2PK1R2/1b2N3 w - - 0 1)

Bourd, Evgeny

Grinblat, Arieh

1st Prize, Phenix, 2009-2010

R2n3r/3Pp1pp/4P2b/1pN3kr/3P3p/2PB3P/2PK1R2/1b2N3

#4

12 + 11


145 StrateGems 2016

SOLUTION


  • SOUND
  • Keys
    • 1.Ra1!
      • 1...Rf8
        • 2.Rxf8
          • threat
            • 3.Sf3#
          • 2...Sf7
            • 3.Rxf7
              • threat
                • 4.Sf3#
      • 1...Rg8
        • 2.Bxh7
          • threat
            • 3.Se4#
            • 3.Rf5#
          • 2...Bxc2
            • 3.Kxc2
              • threat
                • 4.Se4#
                • 4.Rf5#
            • 3.Sxc2
              • threat
                • 4.Se4#
                • 4.Rg1#
                • 4.Rf5#
            • 3.Sed3
              • threat
                • 4.Se4#
                • 4.Rg1#
                • 4.Rf5#
      • 1...Ba2
        • 2.Sf3+
          • 2...Kf4
            • 3.Sg5+
              • 3...Kg3
                • 4.Se4#
              • 3...Kxg5
                • 4.Rg1#
            • 3.Rg1
              • threat
                • 4.Se1#
                • 4.Sh2#
                • 4.Sxh4#
                • 4.Se5#
                • 4.Sg5#
                • 4.Rg4#
          • 2...Kf6+
            • 3.Sg5+
              • 3...Kxg5
                • 4.Rg1#
      • 1...Sc6
        • 2.Rf7
          • threat
            • 3.Sf3#
          • 2...Sxd4
            • 3.cxd4
              • threat
                • 4.Sf3#
          • 2...Se5
            • 3.dxe5
              • threat
                • 4.Sf3#
      • 1...b4
        • 2.Se4+
          • 2...Kg6+
            • 3.Sg5+
              • 3...Kxg5
                • 4.Ra5#

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