Problem Display
PID: 173804 (8/8/8/8/RP6/Bk1K4/N7/R7 w - - 0 1)

Borodatov, Leonid

Shakh-M (Borovich), 1989

8/8/8/8/RP6/Bk1K4/N7/R7

#4

6 + 1


6490 yacpdb 2018

SOLUTION


  • COOKED
  • Keys
    • 1.Bc1!
      • 1...Kxa4
        • 2.Sc3+
          • 2...Kxb4
            • 3.Ra6
              • 3...Kb3
                • 4.Rb6#
              • 3...Kc5
                • 4.Ba3#
    • 1.Rb1+!
      • 1...Kxa2
        • 2.Bc1+
          • 2...Kxb1
            • 3.Kc3
              • 3...Kxc1
                • 4.Ra1#
        • 2.Bb2+
          • 2...Kxb1
            • 3.Bc3
              • 3...Kc1
                • 4.Ra1#
            • 3.Bd4
              • 3...Kc1
                • 4.Ra1#
            • 3.Be5
              • 3...Kc1
                • 4.Ra1#
            • 3.Bf6
              • 3...Kc1
                • 4.Ra1#
            • 3.Bg7
              • 3...Kc1
                • 4.Ra1#
            • 3.Bh8
              • 3...Kc1
                • 4.Ra1#
          • 2...Kb3
            • 3.Raa1
              • 3...Kxb4
                • 4.Bd4#
            • 3.Ra5
              • 3...Kxb4
                • 4.Bc3#
            • 3.Ra6
              • 3...Kxb4
                • 4.Ba3#
                • 4.Bd4#
            • 3.Ra7
              • 3...Kxb4
                • 4.Ba3#
                • 4.Bd4#
            • 3.Ra8
              • 3...Kxb4
                • 4.Ba3#
                • 4.Bd4#
        • 2.Kc3
          • 2...Kxb1
            • 3.Bc1
              • 3...Kxc1
                • 4.Ra1#
      • 1...Kxa4
        • 2.Kc4
          • 2...Kxa3
            • 3.Sc1
              • 3...Ka4
                • 4.Ra1#
    • 1.b5!
      • 1...Kxa4
        • 2.Sc3+
          • 2...Kb3
            • 3.Bc5
              • 3...Kb2
                • 4.Rb1#
            • 3.Bd6
              • 3...Kb2
                • 4.Rb1#
            • 3.Be7
              • 3...Kb2
                • 4.Rb1#
            • 3.Bf8
              • 3...Kb2
                • 4.Rb1#

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