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Problem Display

PID: 150379 (8/3pN3/4pp2/1Np1kbpR/8/3P2K1/5PB1/8 w - - 0 1)

Ahlheim, Karl-Heinz

Source?, 1999

8/3pN3/4pp2/1Np1kbpR/8/3P2K1/5PB1/8

#2

7 + 7

15148	Sadier Collection	2014

SOLUTION

SOUND
Sets
- 1...Bxd3
  - 2.f4#
- 1...Bh3
  - 2.f4#
- 1...Be4
  - 2.f4#
- 1...Bg4
  - 2.f4#
- 1...Bg6
  - 2.f4#
- 1...Bh7
  - 2.f4#
- 1...c4
  - 2.d4#
- 1...g4
  - 2.Sg6#
- 1...d5
  - 2.Sc6#
- 1...d6
  - 2.Sc6#
Tries
- 1.Be4?
  - 1...Bxe4
    - 2.f4#
  - 1...Bh3
    - 2.Sg6#
    - 2.f4#
  - 1...Bg4
    - 2.Sg6#
    - 2.f4#
  - 1...Bg6
    - 2.Sxg6#
    - 2.f4#
  - 1...Bh7
    - 2.f4#
  - 1...g4
    - 2.Sg6#
  - 1...d5
    - 2.Sc6#
  - 1...d6
    - 2.Sc6#
  - 1...c4!
- 1.Bb7?
  - 1...Bxd3
    - 2.f4#
  - 1...c4
    - 2.d4#
  - 1...Bh3
    - 2.f4#
  - 1...Be4
    - 2.f4#
  - 1...Bg4
    - 2.f4#
  - 1...Bg6
    - 2.f4#
  - 1...Bh7
    - 2.f4#
  - 1...g4
    - 2.Sg6#
  - 1...d5
    - 2.Sc6#
  - 1...d6!
- 1.Ba8?
  - 1...Bxd3
    - 2.f4#
  - 1...c4
    - 2.d4#
  - 1...Bh3
    - 2.f4#
  - 1...Be4
    - 2.f4#
  - 1...Bg4
    - 2.f4#
  - 1...Bg6
    - 2.f4#
  - 1...Bh7
    - 2.f4#
  - 1...g4
    - 2.Sg6#
  - 1...d5
    - 2.Sc6#
  - 1...d6!
- 1.f3?
  - 1...Bxd3
    - 2.f4#
  - 1...Bh3
    - 2.f4#
  - 1...Be4
    - 2.f4#
  - 1...Bg4
    - 2.f4#
  - 1...Bg6
    - 2.f4#
  - 1...Bh7
    - 2.f4#
  - 1...c4
    - 2.d4#
  - 1...g4
    - 2.f4#
  - 1...d5
    - 2.Sc6#
  - 1...d6!
Keys
- 1.Bh1!
  - 1...Bxd3
    - 2.f4#
  - 1...Bh3
    - 2.f4#
  - 1...Be4
    - 2.f4#
  - 1...Bg4
    - 2.f4#
  - 1...Bg6
    - 2.f4#
  - 1...Bh7
    - 2.f4#
  - 1...c4
    - 2.d4#
  - 1...g4
    - 2.Sg6#
  - 1...d5
    - 2.Sc6#
  - 1...d6
    - 2.Sc6#

FEATURES

Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
Sets
- B(c);P_SPINP(d),XP(C)::P(A)
- B(c);P_SPINP(d)::P(A)
- P(a);N_GUARD::P(C)
- P(d);P_SPINB(c)::S(G)
- P(g);N_GUARD::S(G)
Tries
- Try
  - B(B);
  - Vars
    - B(c);P_SPINP(d),XB(B)::P(A)
    - B(c);P_SPINP(d)::P(A)
    - P(d);P_SPINB(c)::S(G)
    - P(g);N_GUARD::S(G)
  - Refutation
    - P(a);
- Try
  - B(B);
  - Vars
    - B(c);P_SPINP(d),XP(C)::P(A)
    - P(a);N_GUARD::P(C)
    - B(c);P_SPINP(d)::P(A)
    - P(d);P_SPINB(c)::S(G)
    - P(g);N_GUARD,SBLOCK::S(G)
  - Refutation
    - P(g);
- Try
  - B(B);
  - Vars
    - B(c);P_SPINP(d),XP(C)::P(A)
    - P(a);N_GUARD::P(C)
    - B(c);P_SPINP(d)::P(A)
    - P(d);P_SPINB(c)::S(G)
    - P(g);N_GUARD,SBLOCK::S(G)
  - Refutation
    - P(g);
- Try
  - P(A);
  - Vars
    - B(c);P_SPINP(d),XP(C)::P(A)
    - B(c);P_SPINP(d)::P(A)
    - P(a);N_GUARD::P(C)
    - P(d);N_GUARD,P_SPINB(c)::P(A)
    - P(g);N_GUARD,SBLOCK::S(G)
  - Refutation
    - P(g);
Actual
- B(B);
- Vars
  - B(c);P_SPINP(d),XP(C)::P(A)
  - B(c);P_SPINP(d)::P(A)
  - P(a);N_GUARD::P(C)
  - P(d);P_SPINB(c)::S(G)
  - P(g);N_GUARD::S(G)

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).