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Problem Display

PID: 212714 (8/3p4/2bP4/1k2p3/N1pBp3/R7/pNK5/8 w - - 0 1)

Waterbury, Charles Henry

American Chess Nuts, 1868

8/3p4/2bP4/1k2p3/N1pBp3/R7/pNK5/8

#4

6 + 7

6490	yacpdb	2020

SOLUTION

SOUND
Keys
- 1.Sc3+!
  - 1...Kb4
    - 2.Be3
      - threat
        3.Rxa2
        3...Ba4+
        4.Rxa4#
        3...Bb5
        4.Sd5#
        3...Bd5
        4.Ra4#
        3...Bb7
        4.Ra4#
        3...Ba8
        4.Ra4#
      - 2...a1S+
        3.Rxa1
        3...Ba4+
        4.Rxa4#
        3...Bb5
        4.Sd5#
        3...Bd5
        4.Ra4#
        3...Bb7
        4.Ra4#
        3...Ba8
        4.Ra4#
      - 2...a1Q
        3.Rxa1
        3...Ba4+
        4.Rxa4#
        3...Bb5
        4.Sd5#
        3...Bd5
        4.Ra4#
        3...Bb7
        4.Ra4#
        3...Ba8
        4.Ra4#
      - 2...a1B
        3.Rxa1
        3...Ba4+
        4.Rxa4#
        3...Bb5
        4.Sd5#
        3...Bd5
        4.Ra4#
        3...Bb7
        4.Ra4#
        3...Ba8
        4.Ra4#
      - 2...a1R
        3.Rxa1
        3...Ba4+
        4.Rxa4#
        3...Bb5
        4.Sd5#
        3...Bd5
        4.Ra4#
        3...Bb7
        4.Ra4#
        3...Ba8
        4.Ra4#
      - 2...Bb5
        3.Sd5+
        3...Kxa3
        4.Bc5#

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