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Problem Display

PID: 227752 (8/8/6N1/5p1p/5pkB/3n1R2/8/5KN1 w - - 0 1)

Schiffert, Gyorgy

Uj Nemezdek, 1926

8/8/6N1/5p1p/5pkB/3n1R2/8/5KN1

#2

5 + 5

6490	yacpdb	2020

SOLUTION

SOUND
Sets
- 1...Sc1
  - 2.Rxf4#
- 1...Se1
  - 2.Rxf4#
- 1...Sb2
  - 2.Rxf4#
- 1...Sf2
  - 2.Rxf4#
- 1...Sb4
  - 2.Rxf4#
- 1...Sc5
  - 2.Rxf4#
- 1...Se5
  - 2.Rxf4#
Tries
- 1.Ke2?
  - 1...Se1
    - 2.Rxf4#
  - 1...Sb2
    - 2.Rxf4#
  - 1...Sf2
    - 2.Rxf4#
  - 1...Sb4
    - 2.Rxf4#
  - 1...Sc5
    - 2.Rxf4#
  - 1...Se5
    - 2.Rxf4#
  - 1...Sc1+!
- 1.Kg2?
  - 1...Sc1
    - 2.Rxf4#
  - 1...Sb2
    - 2.Rxf4#
  - 1...Sf2
    - 2.Rxf4#
  - 1...Sb4
    - 2.Rxf4#
  - 1...Sc5
    - 2.Rxf4#
  - 1...Se5
    - 2.Rxf4#
  - 1...Se1+!
- 1.Bf6?
  - 1...Sc1
    - 2.Se5#
  - 1...Se1
    - 2.Se5#
  - 1...Sb2
    - 2.Se5#
  - 1...Sf2
    - 2.Se5#
  - 1...Sb4
    - 2.Se5#
  - 1...Sc5
    - 2.Se5#
  - 1...Se5
    - 2.Sxe5#
  - 1...h4!
- 1.Be7?
  - 1...Sc1
    - 2.Se5#
  - 1...Se1
    - 2.Se5#
  - 1...Sb2
    - 2.Se5#
  - 1...Sf2
    - 2.Se5#
  - 1...Sb4
    - 2.Se5#
  - 1...Sc5
    - 2.Se5#
  - 1...Se5
    - 2.Sxe5#
  - 1...h4!
- 1.Bd8?
  - 1...Sc1
    - 2.Se5#
  - 1...Se1
    - 2.Se5#
  - 1...Sb2
    - 2.Se5#
  - 1...Sf2
    - 2.Se5#
  - 1...Sb4
    - 2.Se5#
  - 1...Sc5
    - 2.Se5#
  - 1...Se5
    - 2.Sxe5#
  - 1...h4!
Keys
- 1.Rh3!
  - 1...Sc1
    - 2.Se5#
  - 1...Se1
    - 2.Se5#
  - 1...Sb2
    - 2.Se5#
  - 1...Sf2
    - 2.Se5#
  - 1...Sb4
    - 2.Se5#
  - 1...Sc5
    - 2.Se5#
  - 1...Se5
    - 2.Sxe5#
  - 1...f3
    - 2.Rg3#

FEATURES

Static
- TYPE = MUTATE
- CHANGED MATES = 7
- ADDED MATES = 1
- REMOVED MATES = 0
Sets
- S(a);N_GUARD::R1(C),XP(b)
Tries
- Try
  - K(A);S_FLIGHT
  - Vars
    - S(a);N_GUARD::R1(C),XP(b)
  - Refutation
    - S(a);CHECK
- Try
  - K(A);S_FLIGHT
  - Vars
    - S(a);N_GUARD::R1(C),XP(b)
  - Refutation
    - S(a);CHECK
- Try
  - B(D);
  - Vars
    - S(a);N_GUARD::S(E)
    - S(a);N_GUARD::S(E),XS(a)
  - Refutation
    - P(e);
- Try
  - B(D);
  - Vars
    - S(a);N_GUARD::S(E)
    - S(a);N_GUARD::S(E),XS(a)
  - Refutation
    - P(e);
- Try
  - B(D);
  - Vars
    - S(a);N_GUARD::S(E)
    - S(a);N_GUARD::S(E),XS(a)
  - Refutation
    - P(e);
Actual
- R(C);
- Vars
  - S(a);N_GUARD::S(E)
  - S(a);N_GUARD::S(E),XS(a)
  - P(b);N_GUARD::R1(C)

Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).