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Problem Display

PID: 51102 (5B2/8/3p1nK1/1p2kB2/1N5R/4p3/4P3/8 w - - 0 1)

Nix, John Gilbert

Burnley Express, 1881

5B2/8/3p1nK1/1p2kB2/1N5R/4p3/4P3/8

#2

6 + 5

SOLUTION

SOUND
Sets
- 1...Se4
  - 2.Rxe4#
- 1...Sd5
  - 2.Sd3#
  - 2.Sc6#
  - 2.Re4#
- 1...Sh5
  - 2.Re4#
- 1...Sd7
  - 2.Re4#
- 1...Sh7
  - 2.Re4#
- 1...Se8
  - 2.Re4#
- 1...Sg8
  - 2.Re4#
- 1...d5
  - 2.Sd3#
  - 2.Sc6#
Tries
- 1.Be7?
  - threat
    - 2.Bxf6#
  - 1...Se4
    - 2.Rxe4#
  - 1...Sd5
    - 2.Sd3#
    - 2.Sc6#
    - 2.Re4#
  - 1...Sh5
    - 2.Re4#
  - 1...Sd7
    - 2.Re4#
  - 1...Sh7
    - 2.Re4#
  - 1...Se8
    - 2.Re4#
  - 1...Sg8
    - 2.Re4#
  - 1...d5
    - 2.Sd3#
    - 2.Sc6#
  - 1...Sg4!
- 1.Rc4?
  - 1...Se4
    - 2.Rxe4#
  - 1...Sg4
    - 2.Re4#
  - 1...Sd5
    - 2.Sd3#
    - 2.Sc6#
    - 2.Re4#
  - 1...Sh5
    - 2.Re4#
  - 1...Sd7
    - 2.Re4#
  - 1...Sh7
    - 2.Re4#
  - 1...Se8
    - 2.Re4#
  - 1...Sg8
    - 2.Re4#
  - 1...d5
    - 2.Sd3#
    - 2.Sc6#
  - 1...bxc4!
- 1.Rd4?
  - threat
    - 2.Sc6#
  - 1...Se4
    - 2.Rxe4#
  - 1...Kxd4!
- 1.Rg4?
  - 1...Se4
    - 2.Rxe4#
  - 1...Sd5
    - 2.Sd3#
    - 2.Sc6#
    - 2.Re4#
  - 1...Sh5
    - 2.Re4#
  - 1...Sd7
    - 2.Re4#
  - 1...Sh7
    - 2.Re4#
  - 1...Se8
    - 2.Re4#
  - 1...Sg8
    - 2.Re4#
  - 1...d5
    - 2.Sd3#
    - 2.Sc6#
  - 1...Sxg4!
Keys
- 1.Rf4!
  - 1...Kxf4
    - 2.Bxd6#
  - 1...Se4
    - 2.Rxe4#
  - 1...Sg4
    - 2.Re4#
  - 1...Sd5
    - 2.Sd3#
    - 2.Re4#
  - 1...Sh5
    - 2.Re4#
  - 1...Sd7
    - 2.Re4#
  - 1...Sh7
    - 2.Re4#
  - 1...Se8
    - 2.Re4#
  - 1...Sg8
    - 2.Re4#
  - 1...d5
    - 2.Sd3#

FEATURES

Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
Sets
- S(e);N_GUARD::R1(C),XS(e)
- S(e);N_GUARD::R1(C)
Tries
- Try
  - B(F);
  - Threat
    - B(F),XS(e)
  - Vars
    - S(e);N_GUARD::R1(C),XS(e)
    - S(e);N_GUARD::R1(C)
  - Refutation
    - S(e);
- Try
  - R(C);
  - Vars
    - S(e);N_GUARD::R1(C),XS(e)
    - S(e);N_GUARD::R1(C)
  - Refutation
    - P(b);XR(C)
- Try
  - R(C);
  - Threat
    - S(B)
  - Vars
    - S(e);N_GUARD::R1(C),XS(e)
  - Refutation
    - K(c);S_FLIGHT,XR(C)
- Try
  - R(C);
  - Vars
    - S(e);N_GUARD::R1(C),XS(e)
    - S(e);N_GUARD::R1(C)
  - Refutation
    - S(e);XR(C)
Actual
- R(C);
- Vars
  - K(c);S_FLIGHT,XR(C)::B(F),XP(d)
  - S(e);N_GUARD::R1(C),XS(e)
  - S(e);N_GUARD::R1(C)
  - P(d);SBLOCK::S(B)

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