Problem Display
PID: 39987 (4n1b1/p5pr/2pp4/3p4/1BkN3P/7P/2NK4/2R5 w - - 0 1)

Anonymous

Source?, 0000

4n1b1/p5pr/2pp4/3p4/1BkN3P/7P/2NK4/2R5

#4

7 + 9


4760 200 Classic Chess Puzzles 1993
3977 200 Intriguing Chess Puzzles 1996

SOLUTION


  • SOUND
  • Keys
    • 1.Ra1!
      • threat
        • 2.Ra3
          • threat
            • 3.Rc3#
        • 2.Ra4
          • threat
            • 3.Ba3#
            • 3.Bxd6#
      • 1...Rxh4
        • 2.Ra4
          • threat
            • 3.Ba3#
            • 3.Bxd6#
          • 2...Rxd4+
            • 3.Sxd4
              • threat
                • 4.Ba3#
                • 4.Bxd6#
              • 3...Kxd4
                • 4.Bxd6#
      • 1...Sf6
        • 2.Ra4
          • threat
            • 3.Ba3#
            • 3.Bxd6#
          • 2...Se4+
            • 3.Ke3
              • threat
                • 4.Sa3#
      • 1...Sc7
        • 2.Bxd6
          • threat
            • 3.Ra4#
          • 2...Sa6
            • 3.Ra4+
              • 3...Sb4
                • 4.Rxb4#
            • 3.Rxa6
              • threat
                • 4.Ra4#
                • 4.Rxc6#
            • 3.Ra3
              • threat
                • 4.Rc3#
        • 2.Ra4
          • threat
            • 3.Ba3#
            • 3.Bxd6#
          • 2...Sa6
            • 3.Bxd6+
              • 3...Sb4
                • 4.Rxb4#
            • 3.Ra3
              • threat
                • 4.Rc3#
      • 1...c5
        • 2.Ra4
          • threat
            • 3.Ba3#
            • 3.Bc3#
            • 3.Ba5#
          • 2...cxb4
            • 3.Ra6
              • threat
                • 4.Rc6#
              • 3...Kc5
                • 4.Rc6#
          • 2...cxd4
            • 3.Sxd4
              • threat
                • 4.Ba3#
                • 4.Bxd6#
              • 3...Kxd4
                • 4.Bxd6#
      • 1...a5
        • 2.Ra4
          • threat
            • 3.Ba3#
            • 3.Bxd6#
          • 2...axb4
            • 3.Rxb4+
              • 3...Kc5
                • 4.Sb3#

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