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Problem Display

PID: 57305 (R7/8/1p6/3BK3/1k1B4/8/8/8 w - - 0 1)

Shinkman, William Anthony

Wurzburg, Otto

Schachminiaturen II, 1903

R7/8/1p6/3BK3/1k1B4/8/8/8

#4

4 + 2

SOLUTION

SOUND
Keys
- 1.Ra1!
  - 1...Kb5
    - 2.Bc3
      - 2...Kc5
        3.Rb1
        3...b5
        4.Bd4#
  - 1...b5
    - 2.Ba2
      - 2...Ka3
        3.Bc3
        threat
        4.Bc4#
        4.Bd5#
        4.Be6#
        4.Bf7#
        4.Bg8#
        3...Ka4
        4.Bc4#
        4.Bd5#
        4.Be6#
        4.Bf7#
        4.Bg8#
      - 2...Ka4
        3.Bc3
        threat
        4.Bc4#
        4.Bd5#
        4.Be6#
        4.Bf7#
        4.Bg8#
        3...Ka3
        4.Bc4#
        4.Bd5#
        4.Be6#
        4.Bf7#
        4.Bg8#
        3.Bc5
        threat
        4.Bc4#
        4.Bd5#
        4.Be6#
        4.Bf7#
        4.Bg8#
        3...Ka5
        4.Bb1#
        4.Bb3#
        4.Bc4#
        4.Bd5#
        4.Be6#
        4.Bf7#
        4.Bg8#
      - 2...Ka5
        3.Bc5
        threat
        4.Bb1#
        4.Bb3#
        4.Bc4#
        4.Bd5#
        4.Be6#
        4.Bf7#
        4.Bg8#
        3...Ka4
        4.Bc4#
        4.Bd5#
        4.Be6#
        4.Bf7#
        4.Bg8#
        3...Ka6
        4.Bd5#

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