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Problem Display

PID: 99324 (2r5/2b2p2/1p3p2/PK1k4/2N2P2/B1PBR1nr/1P1P4/8 w - - 0 1)

Oltean, Dorin

Magyar Sakkelet, 1988

2r5/2b2p2/1p3p2/PK1k4/2N2P2/B1PBR1nr/1P1P4/8

#2

10 + 8

6490	yacpdb	2009

SOLUTION

SOUND
Sets
- 1...Bxf4
  - 2.Sxb6#
- 1...Bd6
  - 2.Sxb6#
- 1...Bb8
  - 2.Sxb6#
Tries
- 1.Re8?
  - threat
    - 2.Se3#
  - 1...Bxf4
    - 2.Sxb6#
  - 1...Sf1
    - 2.Be4#
  - 1...Sh1
    - 2.Be4#
  - 1...Se2
    - 2.Be4#
  - 1...Se4
    - 2.Bxe4#
  - 1...Sf5
    - 2.Be4#
  - 1...Sh5
    - 2.Be4#
  - 1...Rxe8!
Keys
- 1.Re7!
  - threat
    - 2.Se3#
  - 1...Bxf4
    - 2.Sxb6#
  - 1...Sf1
    - 2.Be4#
  - 1...Sh1
    - 2.Be4#
  - 1...Se2
    - 2.Be4#
  - 1...Se4
    - 2.Bxe4#
  - 1...Sf5
    - 2.Be4#
  - 1...Sh5
    - 2.Be4#

FEATURES

Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 2
Sets
- B(f);N_GUARD,XP(H)::S(G),XP(d)
- B(f);N_GUARD::S(G),XP(d)
Tries
- Try
  - R(F);
  - Threat
    - S(G)
  - Vars
    - B(f);N_GUARD,XP(H)::S(G),XP(d)
    - S(a);N_GUARD::B(E)
    - S(a);N_GUARD::B(E),XS(a)
  - Refutation
    - R(h);XR(F)
Actual
- R(F);
- Threat
  - S(G)
- Vars
  - B(f);N_GUARD,XP(H)::S(G),XP(d)
  - S(a);N_GUARD::B(E)
  - S(a);N_GUARD::B(E),XS(a)

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).