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Problem Display

PID: 228688 (5n2/p6n/2p2B2/2PkpBpN/K3RP2/pNP1P3/7p/2r5 w - - 0 1)

Keller, Michael

Troll, 2020

5n2/p6n/2p2B2/2PkpBpN/K3RP2/pNP1P3/7p/2r5

#3

10 + 10

SOLUTION

SOUND
Sets
- 1...Ra1
  - 2.c4#
- 1...Rb1
  - 2.c4#
- 1...Rd1
  - 2.c4#
- 1...Re1
  - 2.c4#
- 1...Rf1
  - 2.c4#
- 1...Rg1
  - 2.c4#
- 1...Rh1
  - 2.c4#
- 1...Rxc3
  - 2.Rxe5+
    - 2...Kc4
      - 3.Sd2#
      - 3.Sa5#
- 1...Sxf6
  - 2.Sxf6#
- 1...Sg6
  - 2.fxe5
    - threat
      - 3.Rd4#
    - 2...Sxf6
      - 3.Sxf6#
    - 2...Rd1
      - 3.c4#
- 1...exf4
  - 2.Rd4#
- 1...gxf4
  - 2.Sxf4+
    - 2...exf4
      - 3.Rd4#
Tries
- 1.Kb4?
  - threat
    - 2.Rxe5#
  - 1...Sg6
    - 2.Rd4+
      - 2...exd4
        3.e4#
    - 2.Rxe5+
      - 2...Sxe5
        3.e4#
  - 1...Sd7
    - 2.Rd4+
      - 2...exd4
        3.e4#
    - 2.Rxe5+
      - 2...Sxe5
        3.e4#
  - 1...a5+!
- 1.Bxe5?
  - threat
    - 2.Rd4#
  - 1...gxf4
    - 2.Sxf4#
  - 1...Rd1
    - 2.c4#
  - 1...Se6!
- 1.fxe5?
  - threat
    - 2.Rd4#
  - 1...Sxf6
    - 2.Sxf6#
  - 1...Rd1
    - 2.c4#
  - 1...Se6!
Keys
- 1.Ka5!
  - threat
    - 2.c4+
      - 2...Rxc4
        3.Rxe5#
  - 1...Rxc3
    - 2.Rxe5+
      - 2...Kc4
        3.Sd2#
  - 1...Rc2
    - 2.c4+
      - 2...Rxc4
        3.Rxe5#
  - 1...Sg6
    - 2.fxe5
      - threat
        3.Rd4#
      - 2...Sxf6
        3.Sxf6#
      - 2...Rd1
        3.c4#
  - 1...Sd7
    - 2.Bxe5
      - threat
        3.Rd4#
      - 2...gxf4
        3.Sxf4#
      - 2...Rd1
        3.c4#

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