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Problem Display

PID: 140545 (1Rr1Q3/1B3PK1/1r1B1p2/q1n2N2/pPkpn3/5R2/N1P2p1b/8 w - - 0 1)

Kostylev, Mikhail Romanovich

Melnichuk, Aleksandr Nikolaevich

StrateGems, 2006

1Rr1Q3/1B3PK1/1r1B1p2/q1n2N2/pPkpn3/5R2/N1P2p1b/8

#3

11 + 11

SOLUTION

SOUND
Sets
- 1...Sd3
  - 2.Qe6+
    - 2...Kb5
      - 3.Sxd4#
    - 2...Qd5
      - 3.Qxd5#
- 1...Sa6
  - 2.Qe6+
    - 2...Kb5
      - 3.Sxd4#
    - 2...Qd5
      - 3.Qxd5#
- 1...Se6+
  - 2.Qxe6+
    - 2...Kb5
      - 3.Sxd4#
    - 2...Qd5
      - 3.Qxd5#
- 1...Sd7
  - 2.Qe6+
    - 2...Kb5
      - 3.Sxd4#
    - 2...Qd5
      - 3.Qxd5#
Tries
- 1.Qe6+?
  - 1...Kb5
    - 2.Sxd4#
  - 1...Sxe6+!
Keys
- 1.Rd3!
  - threat
    - 2.Rxd4#
  - 1...Se6+
    - 2.Qxe6+
      - 2...Kb5
        3.Sxd4#
      - 2...Qd5
        3.Qxd5#
  - 1...Rxd6
    - 2.Rxd4+
      - 2...Rxd4
        3.Se3#
  - 1...Rxe8
    - 2.Rxd4+
      - 2...Kb5
        3.c4#
  - 1...Sxd3
    - 2.Qe6+
      - 2...Kb5
        3.Sxd4#
      - 2...Qd5
        3.Qxd5#
  - 1...Rbc6
    - 2.Ba6+
      - 2...Kd5
        3.Rxd4#
        3.c4#
      - 2...Qb5
        3.Rxd4#
      - 2...Qxa6
        3.Rxd4#
      - 2...Rxa6
        3.Rxd4#
      - 2...Sxa6
        3.Rxd4#
  - 1...Rcc6
    - 2.Rxd4+
      - 2...Kb5
        3.c4#
  - 1...Sd7
    - 2.Qe6+
      - 2...Kb5
        3.Sxd4#
      - 2...Qd5
        3.Qxd5#
  - 1...Be5
    - 2.Se3+
      - 2...dxe3
        3.Bd5#
  - 1...Sb3
    - 2.Rxd4+
      - 2...Sxd4
        3.Se3#

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