Meson Chess Problem Database

Home
Latest Additions
- #2
- #3
- #4
- #5
- Stats
Books
- All composers (SLOW)
- By initial letter
Magazines
- PID
- General
- Matrix
- All sources/quoters (SLOW)
- By initial letter
- Awards
- Composers
- Decades
- Quoters
- Sizes
- Soundness
- Sources
- Stipulations
- Years
Contact
Back to BDS Website

Problem Display

PID: 125577 (8/r3P3/2R1Bn2/1N2k3/5pPB/3P3K/8/8 w - - 0 1)

Goldschmidt, Josef

Lamershav, 1952

8/r3P3/2R1Bn2/1N2k3/5pPB/3P3K/8/8

#2

8 + 4

6490	yacpdb	2009

SOLUTION

SOUND
Sets
- 1...Se4
  - 2.d4#
- 1...f3
  - 2.Bg3#
Tries
- 1.Bb3?
  - threat
    - 2.Bxf6#
    - 2.Re6#
  - 1...Rxe7
    - 2.Bxf6#
  - 1...Sxg4
    - 2.Rc5#
  - 1...f3
    - 2.Bg3#
  - 1...Ra6
    - 2.Bxf6#
  - 1...Se4
    - 2.Re6#
    - 2.d4#
  - 1...Sh5
    - 2.Rc5#
    - 2.Re6#
  - 1...Sd7
    - 2.Re6#
    - 2.e8Q#
    - 2.e8R#
  - 1...Sh7
    - 2.Rc5#
    - 2.Re6#
  - 1...Se8
    - 2.Rc5#
    - 2.Re6#
  - 1...Sg8
    - 2.Rc5#
    - 2.Re6#
  - 1...Sd5!
- 1.Bc4?
  - threat
    - 2.Bxf6#
    - 2.Re6#
  - 1...Rxe7
    - 2.Bxf6#
  - 1...Sxg4
    - 2.Rc5#
  - 1...f3
    - 2.Bg3#
  - 1...Ra6
    - 2.Bxf6#
  - 1...Se4
    - 2.Re6#
    - 2.d4#
  - 1...Sh5
    - 2.Rc5#
    - 2.Re6#
  - 1...Sd7
    - 2.Re6#
    - 2.e8Q#
    - 2.e8R#
  - 1...Sh7
    - 2.Rc5#
    - 2.Re6#
  - 1...Se8
    - 2.Rc5#
    - 2.Re6#
  - 1...Sg8
    - 2.Rc5#
    - 2.Re6#
  - 1...Sd5!
- 1.Bg8?
  - threat
    - 2.Bxf6#
  - 1...Sxg4
    - 2.Rc5#
  - 1...f3
    - 2.Bg3#
  - 1...Sd5
    - 2.Re6#
  - 1...Se4
    - 2.d4#
  - 1...Sh5
    - 2.Rc5#
  - 1...Sd7
    - 2.e8Q#
    - 2.e8R#
  - 1...Sh7
    - 2.Rc5#
  - 1...Se8
    - 2.Rc5#
  - 1...Sxg8!
Keys
- 1.Bf7!
  - threat
    - 2.Bxf6#
  - 1...Sxg4
    - 2.Rc5#
  - 1...f3
    - 2.Bg3#
  - 1...Sd5
    - 2.Re6#
  - 1...Se4
    - 2.d4#
  - 1...Sh5
    - 2.Rc5#
  - 1...Sd7
    - 2.e8Q#
    - 2.e8R#
  - 1...Sh7
    - 2.Rc5#
  - 1...Se8
    - 2.Rc5#
  - 1...Sg8
    - 2.Rc5#

FEATURES

Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 0
Sets
- S(c);SBLOCK::P(A)
- P(a);OGATEB::B(D)
Tries
- Try
  - B(G);
  - Threat
    - DUALS(2)
  - Vars
    - R(d);XP(H)::B(D),XS(c)
    - S(c);N_GUARD,XP(C)::R(F)
    - P(a);OGATEB::B(D)
    - R(d);::B(D),XS(c)
  - Refutation
    - S(c);
- Try
  - B(G);
  - Threat
    - DUALS(2)
  - Vars
    - R(d);XP(H)::B(D),XS(c)
    - S(c);N_GUARD,XP(C)::R(F)
    - P(a);OGATEB::B(D)
    - R(d);::B(D),XS(c)
  - Refutation
    - S(c);
- Try
  - B(G);
  - Threat
    - B(D),XS(c)
  - Vars
    - S(c);N_GUARD,XP(C)::R(F)
    - P(a);OGATEB::B(D)
    - S(c);SBLOCK::R1(F)
    - S(c);SBLOCK::P(A)
    - S(c);N_GUARD::R(F)
    - S(c);N_GUARD,S_CUTR(d)::P=Q
  - Refutation
    - S(c);XB(G)
Actual
- B(G);
- Threat
  - B(D),XS(c)
- Vars
  - S(c);N_GUARD,XP(C)::R(F)
  - P(a);OGATEB::B(D)
  - S(c);SBLOCK::R1(F)
  - S(c);SBLOCK::P(A)
  - S(c);N_GUARD::R(F)
  - S(c);N_GUARD,S_CUTR(d)::P=Q

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).