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Problem Display

PID: 73149 (8/3p4/3K4/2pR4/2B5/3nN3/1p2P1R1/1N2k3 w - - 0 1)

Hoffmann, Fritz

2nd HM., Neue Osnabrucker Zeitung, 1989-1992

8/3p4/3K4/2pR4/2B5/3nN3/1p2P1R1/1N2k3

#2

7 + 5

6113	Problemschach-Jahrbuch (1993)	1994

SOLUTION

SOUND
Sets
- 1...Sc1
  - 2.Rd1#
- 1...Sf2
  - 2.Rg1#
- 1...Sb4
  - 2.Rd1#
- 1...Sf4
  - 2.Rd1#
- 1...Se5
  - 2.Rd1#
Tries
- 1.Kc7?
  - 1...Sc1
    - 2.Rd1#
  - 1...Sf2
    - 2.Rg1#
  - 1...Sb4
    - 2.Rd1#
  - 1...Sf4
    - 2.Rd1#
  - 1...Se5
    - 2.Rd1#
  - 1...d6!
- 1.Kxd7?
  - 1...Sc1
    - 2.Rd1#
  - 1...Sf2
    - 2.Rg1#
  - 1...Sb4
    - 2.Rd1#
  - 1...Sf4
    - 2.Rd1#
  - 1...Se5+!
- 1.Ke7?
  - 1...Sc1
    - 2.Rd1#
  - 1...Sf2
    - 2.Rg1#
  - 1...Sb4
    - 2.Rd1#
  - 1...Sf4
    - 2.Rd1#
  - 1...Se5
    - 2.Rd1#
  - 1...d6!
- 1.Bb5?
  - 1...Sc1
    - 2.Rd1#
  - 1...Sf2
    - 2.Rg1#
  - 1...Sb4
    - 2.Rd1#
  - 1...Sf4
    - 2.Rd1#
  - 1...Se5
    - 2.Rd1#
  - 1...c4!
- 1.Ba6?
  - 1...Sc1
    - 2.Rd1#
  - 1...Sf2
    - 2.Rg1#
  - 1...Sb4
    - 2.Rd1#
  - 1...Sf4
    - 2.Rd1#
  - 1...Se5
    - 2.Rd1#
  - 1...c4!
- 1.Rh2?
  - 1...Sc1
    - 2.Rd1#
  - 1...Sb4
    - 2.Rd1#
  - 1...Sf4
    - 2.Rd1#
  - 1...Se5
    - 2.Rd1#
  - 1...Sf2!
- 1.Rd4?
  - 1...Sc1
    - 2.Rd1#
  - 1...Sf2
    - 2.Rg1#
  - 1...Sb4
    - 2.Rd1#
  - 1...Sf4
    - 2.Rd1#
  - 1...Se5
    - 2.Rd1#
  - 1...cxd4!
- 1.Rf5?
  - threat
    - 2.Rf1#
  - 1...Sf2
    - 2.Rg1#
  - 1...Sf4!
Keys
- 1.Rh5!
  - threat
    - 2.Rh1#
  - 1...Sf2
    - 2.Rg1#

FEATURES

Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 4
Sets
- S(c);OGATE::R1(F)
- S(c);SBLOCK::R(C)
Tries
- Try
  - K(G);S_FLIGHT
  - Vars
    - S(c);OGATE::R1(F)
    - S(c);SBLOCK::R(C)
  - Refutation
    - P(e);
- Try
  - K(G);P-FLIGHT,XP(e)
  - Vars
    - S(c);OGATE::R1(F)
    - S(c);SBLOCK::R(C)
  - Refutation
    - S(c);CHECK
- Try
  - K(G);S_FLIGHT
  - Vars
    - S(c);OGATE::R1(F)
    - S(c);SBLOCK::R(C)
  - Refutation
    - P(e);
- Try
  - B(E);
  - Vars
    - S(c);OGATE::R1(F)
    - S(c);SBLOCK::R(C)
  - Refutation
    - P(d);
- Try
  - B(E);
  - Vars
    - S(c);OGATE::R1(F)
    - S(c);SBLOCK::R(C)
  - Refutation
    - P(d);
- Try
  - R(C);
  - Vars
    - S(c);OGATE::R1(F)
  - Refutation
    - S(c);
- Try
  - R(F);
  - Vars
    - S(c);OGATE::R1(F)
    - S(c);SBLOCK::R(C)
  - Refutation
    - P(d);XR(F)
- Try
  - R(F);
  - Threat
    - R1(F)
  - Vars
    - S(c);::R(C)
  - Refutation
    - S(c);
Actual
- R(F);
- Threat
  - R(F)
- Vars
  - S(c);SBLOCK::R(C)

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